WEE1

UniProt ID: P30291
Organism: Homo sapiens
Review Status: COMPLETE
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Gene Description

WEE1 (Wee1A) is a predominantly nuclear, non-receptor protein tyrosine kinase that inhibits cyclin-dependent kinases by phosphorylating their inhibitory Tyr15 residue, most prominently CDK1 bound to cyclin B1, and also CDK2 complexes; it does not phosphorylate the adjacent Thr14, which is the province of the related kinase PKMYT1. By holding CDK1 inactive through S and G2 phase, WEE1 delays mitotic entry until DNA replication is complete and supports the DNA-damage G2 delay; by restraining CDK2 during S phase it limits replication-origin firing and protects ongoing replication. WEE1 also phosphorylates histone H2B Tyr37 in late S phase, linked to repression of replication-dependent histone genes. The kinase domain is structurally closest to Ser/Thr kinases despite its tyrosine specificity. WEE1 activity rises in S/G2 and is switched off at mitosis by CDK1 and PLK1 phosphorylation, which creates phosphodegrons recognised by SCF(beta-TrCP) for ubiquitin-dependent degradation. WEE1 is distinct from the oocyte-enriched paralog WEE2 (Wee1B).

Existing Annotations Review

GO Term Evidence Action Reason
GO:0000086 G2/M transition of mitotic cell cycle
TAS
Reactome:R-HSA-69275
MODIFY
Summary: WEE1 restrains, rather than executes, the G2/M transition.
Reason: WEE1 phosphorylates CDK1 Tyr15 to hold cyclin B1-CDK1 inactive, so its role is negative regulation of the G2/M transition, which the gene already carries by IDA and IBA.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
WEE1Hu plays a role in inhibiting mitosis before M phase by phosphorylating cyclin B1-Cdc2
GO:0000278 mitotic cell cycle
IEA
GO_REF:0000002
MODIFY
Summary: Correct but very general; the specific supported process is negative regulation of G2/M.
Reason: The InterPro-based mapping is true but uninformative. The experimentally supported, more specific process already on this gene is negative regulation of the G2/M transition through inhibitory CDK1 Tyr15 phosphorylation.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
WEE1Hu plays a role in inhibiting mitosis before M phase by phosphorylating cyclin B1-Cdc2
GO:0000287 magnesium ion binding
IEA
GO_REF:0000002
KEEP AS NON CORE
Summary: Magnesium is the catalytic cofactor of the kinase domain.
Reason: UniProt records two Mg2+ ions per subunit from the human WEE1 kinase-domain crystal structure. The term is accurate but describes a cofactor of the core kinase activity, not a separate function.
Supporting Evidence:
file:human/WEE1/WEE1-uniprot.txt
Note=Binds 2 magnesium ions per subunit. {ECO:0000269|PubMed:15837193}
GO:0004672 protein kinase activity
IEA
GO_REF:0000120
MODIFY
Summary: Generic protein kinase activity; the demonstrated activity is tyrosine-directed.
Reason: Human WEE1 phosphorylates CDK1 exclusively on Tyr15 and not Thr14, so the specific supported term is protein tyrosine kinase activity, already carried by this gene with direct evidence. The generic term is also what PAINT placed at the family root (PTN000113601), which spans eIF2-alpha Ser/Thr kinases.
Proposed replacements: protein tyrosine kinase activity
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:15837193
Although Wee1A is functionally a tyrosine kinase, in sequence and structure it most closely resembles serine/threonine kinases such as Chk1 and cAMP kinases
GO:0004713 protein tyrosine kinase activity
EXP
PMID:8348613
Human wee1 maintains mitotic timing by protecting the nucleu...
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004713 protein tyrosine kinase activity
IBA
GO_REF:0000033
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004713 protein tyrosine kinase activity
IDA
PMID:7743995
Regulation of the human WEE1Hu CDK tyrosine 15-kinase during...
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004713 protein tyrosine kinase activity
IDA
PMID:8428596
Human Wee1 kinase inhibits cell division by phosphorylating ...
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004713 protein tyrosine kinase activity
IEA
GO_REF:0000116
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004713 protein tyrosine kinase activity
TAS
PMID:7774574
Cell cycle regulation of human WEE1.
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004713 protein tyrosine kinase activity
TAS
Reactome:R-HSA-170070
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004713 protein tyrosine kinase activity
TAS
Reactome:R-HSA-170156
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004713 protein tyrosine kinase activity
TAS
Reactome:R-HSA-174164
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004713 protein tyrosine kinase activity
TAS
Reactome:R-HSA-69195
ACCEPT
Summary: WEE1 phosphorylates the inhibitory Tyr15 of cyclin-bound CDKs.
Reason: Purified human WEE1 phosphorylates cyclin-bound CDK1 on Tyr15 but not Thr14, endogenous WEE1 phosphorylates several cyclin-associated CDKs on Tyr15, and a Lys114 (ATP-site lysine) mutant loses both kinase and mitotic-inhibitor activity. Antibody depletion shows WEE1 supplies most CDK1-Tyr15 kinase activity in HeLa lysates. The structural resemblance of the WEE1 kinase domain to Ser/Thr kinases does not change its demonstrated tyrosine specificity. The IBA is placed at PTN008510964, seeded by human WEE1, Drosophila Wee1 and Xenopus Wee2-A; human WEE1 is a descendant and has its own direct evidence, so the inheritance is sound.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7774574
Antibody depletion experiments demonstrate that WEE1 accounts for most of the activity that phosphorylates CDC2 on Tyr15 in an in vitro assay of HeLa cell lysates
GO:0004715 non-membrane spanning protein tyrosine kinase activity
IEA
GO_REF:0000120
ACCEPT
Summary: WEE1 is a soluble, non-receptor protein tyrosine kinase (EC 2.7.10.2).
Reason: WEE1 has no transmembrane segment, is a nuclear protein, and directly phosphorylates CDK1 Tyr15; this is the most specific accurate molecular function term for its catalytic activity.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
GO:0005515 protein binding
IPI
PMID:15070733
M-phase kinases induce phospho-dependent ubiquitination of s...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: PLK1 phosphorylates WEE1 Ser53 to create a beta-TrCP phosphodegron; WEE1 is the substrate. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
Supporting Evidence:
PMID:15070733
recognition of Wee1A by beta-TrCP depended on phosphorylation
GO:0005515 protein binding
IPI
PMID:15070733
M-phase kinases induce phospho-dependent ubiquitination of s...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: FBXW11 (beta-TrCP2) recognises phosphorylated WEE1 for SCF-mediated ubiquitination; WEE1 is the substrate. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
Supporting Evidence:
PMID:15070733
recognition of Wee1A by beta-TrCP depended on phosphorylation
GO:0005515 protein binding
IPI
PMID:15070733
M-phase kinases induce phospho-dependent ubiquitination of s...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: BTRC (beta-TrCP1) recognises phosphorylated WEE1 for SCF-mediated ubiquitination; WEE1 is the substrate. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
Supporting Evidence:
PMID:15070733
recognition of Wee1A by beta-TrCP depended on phosphorylation
GO:0005515 protein binding
IPI
PMID:15161933
Comprehensive proteomic analysis of interphase and mitotic 1...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: 14-3-3 zeta binds phosphorylated WEE1 as a client in proteomic screens. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
GO:0005515 protein binding
IPI
PMID:15778465
Targeted proteomic analysis of 14-3-3 sigma, a p53 effector ...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: 14-3-3 sigma binds phosphorylated WEE1 as a client in proteomic screens. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
GO:0005515 protein binding
IPI
PMID:25241761
Using an in situ proximity ligation assay to systematically ...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: FBXW11 (beta-TrCP2) recognises phosphorylated WEE1 for SCF-mediated ubiquitination; WEE1 is the substrate. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
GO:0005515 protein binding
IPI
PMID:32707033
Kinase Interaction Network Expands Functional and Disease Ro...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: PLK1 phosphorylates WEE1 Ser53 to create a beta-TrCP phosphodegron; WEE1 is the substrate. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: 14-3-3 zeta binds phosphorylated WEE1 as a client in proteomic screens. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
GO:0005515 protein binding
IPI
PMID:36931259
A central chaperone-like role for 14-3-3 proteins in human c...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: 14-3-3 sigma binds phosphorylated WEE1 as a client in proteomic screens. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
GO:0005515 protein binding
IPI
PMID:36931259
A central chaperone-like role for 14-3-3 proteins in human c...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: 14-3-3 epsilon binds phosphorylated WEE1 as a client in a proteomic screen. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
GO:0005515 protein binding
IPI
PMID:36931259
A central chaperone-like role for 14-3-3 proteins in human c...
REMOVE
Summary: Generic protein binding; the interaction regulates WEE1 rather than defining a WEE1 activity.
Reason: 14-3-3 zeta binds phosphorylated WEE1 as a client in proteomic screens. Bare protein binding (GO:0005515) is uninformative and is removed under the repository protein-binding policy; removal does not mean the reported interaction is false. No more informative molecular function on the WEE1 side is supported, because WEE1 is the phosphorylated substrate or client in these complexes.
GO:0005524 ATP binding
IEA
GO_REF:0000002
KEEP AS NON CORE
Summary: ATP is the phosphate donor for WEE1 catalysis.
Reason: Accurate and implied by the kinase reaction (the Lys114 ATP-site mutant is inactive), but a substrate-binding description of the core kinase activity rather than an independent function.
Supporting Evidence:
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
GO:0005634 nucleus
IBA
GO_REF:0000033
ACCEPT
Summary: WEE1 is a nuclear protein and acts on CDK1 in the nucleus.
Reason: Heald et al. showed human WEE1 is nuclear and protects the nucleus from cytoplasmically activated CDK1; UniProt records nuclear localization from this study. The IBA from PTN000113601 is seeded by human WEE1 itself and many family members, which is expected and not circular.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
PMID:8348613
The human wee1 kinase appears to coordinate the transition between DNA replication and mitosis by protecting the nucleus from this cytoplasmically activated cdc2 kinase
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005634 nucleus
IDA
PMID:8348613
Human wee1 maintains mitotic timing by protecting the nucleu...
ACCEPT
Summary: WEE1 is a nuclear protein and acts on CDK1 in the nucleus.
Reason: Heald et al. showed human WEE1 is nuclear and protects the nucleus from cytoplasmically activated CDK1; UniProt records nuclear localization from this study. The IBA from PTN000113601 is seeded by human WEE1 itself and many family members, which is expected and not circular.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
PMID:8348613
The human wee1 kinase appears to coordinate the transition between DNA replication and mitosis by protecting the nucleus from this cytoplasmically activated cdc2 kinase
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005634 nucleus
IEA
GO_REF:0000120
ACCEPT
Summary: WEE1 is a nuclear protein and acts on CDK1 in the nucleus.
Reason: Heald et al. showed human WEE1 is nuclear and protects the nucleus from cytoplasmically activated CDK1; UniProt records nuclear localization from this study. The IBA from PTN000113601 is seeded by human WEE1 itself and many family members, which is expected and not circular.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
PMID:8348613
The human wee1 kinase appears to coordinate the transition between DNA replication and mitosis by protecting the nucleus from this cytoplasmically activated cdc2 kinase
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005634 nucleus
TAS
PMID:8348613
Human wee1 maintains mitotic timing by protecting the nucleu...
ACCEPT
Summary: WEE1 is a nuclear protein and acts on CDK1 in the nucleus.
Reason: Heald et al. showed human WEE1 is nuclear and protects the nucleus from cytoplasmically activated CDK1; UniProt records nuclear localization from this study. The IBA from PTN000113601 is seeded by human WEE1 itself and many family members, which is expected and not circular.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
PMID:8348613
The human wee1 kinase appears to coordinate the transition between DNA replication and mitosis by protecting the nucleus from this cytoplasmically activated cdc2 kinase
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-156699
ACCEPT
Summary: WEE1 acts on soluble cyclin-CDK complexes in the nucleoplasm.
Reason: Reactome places the WEE1 reactions on cyclin-CDK complexes in the nucleoplasm; this is consistent with the experimentally established nuclear localization and is a specific, accurate location.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-170070
ACCEPT
Summary: WEE1 acts on soluble cyclin-CDK complexes in the nucleoplasm.
Reason: Reactome places the WEE1 reactions on cyclin-CDK complexes in the nucleoplasm; this is consistent with the experimentally established nuclear localization and is a specific, accurate location.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-170156
ACCEPT
Summary: WEE1 acts on soluble cyclin-CDK complexes in the nucleoplasm.
Reason: Reactome places the WEE1 reactions on cyclin-CDK complexes in the nucleoplasm; this is consistent with the experimentally established nuclear localization and is a specific, accurate location.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-174164
ACCEPT
Summary: WEE1 acts on soluble cyclin-CDK complexes in the nucleoplasm.
Reason: Reactome places the WEE1 reactions on cyclin-CDK complexes in the nucleoplasm; this is consistent with the experimentally established nuclear localization and is a specific, accurate location.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-69195
ACCEPT
Summary: WEE1 acts on soluble cyclin-CDK complexes in the nucleoplasm.
Reason: Reactome places the WEE1 reactions on cyclin-CDK complexes in the nucleoplasm; this is consistent with the experimentally established nuclear localization and is a specific, accurate location.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-9929535
ACCEPT
Summary: WEE1 acts on soluble cyclin-CDK complexes in the nucleoplasm.
Reason: Reactome places the WEE1 reactions on cyclin-CDK complexes in the nucleoplasm; this is consistent with the experimentally established nuclear localization and is a specific, accurate location.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
file:human/WEE1/WEE1-uniprot.txt
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:8348613}
GO:0005730 nucleolus
IDA
GO_REF:0000052
UNDECIDED
Summary: HPA nucleolar signal is not supported by the primary localization studies.
Reason: The primary studies establish nuclear WEE1, and McGowan and Russell (PMID:7774574, full text, as summarised in the deep-research report) describe transfected WEE1 as excluded from nucleoli, which conflicts with this antibody-based HPA call. Without access to the HPA images and antibody validation the row cannot be resolved; it is not removed because it is an experimental annotation.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
GO:0005737 cytoplasm
IBA
GO_REF:0000033
MARK AS OVER ANNOTATED
Summary: Cytoplasmic activity is a family-level inference not borne out for WEE1.
Reason: The IBA comes from the PTHR11042 root node PTN000113601, whose cytoplasm seeds are dominated by eIF2-alpha kinases, PKMYT1 and other members; human WEE1 is not among the cytoplasm seeds although it seeds the nucleus assertion at the same node. The Ensembl Compara IEA is a projection from mouse Wee1. Human WEE1 is experimentally nuclear, and its defining function is to oppose CDK1 that is activated in the cytoplasm from inside the nucleus. A transient cytoplasmic pool (e.g. during synthesis) is not excluded, but 'active in cytoplasm' over-states the evidence.
Propagation Review
Root cause: PROPAGATION BAD
Failure modes: COMPARTMENT OR COMPLEX MISMATCH
Sources checked:
PANTHER:PTN000113601 Β· PTHR11042 root node SUPPORTS SOURCE BUT NOT TARGET
Cytoplasm seeds are other family members (eIF2-alpha kinases, PKMYT1, WEE2 and others); human WEE1 seeds only the nucleus assertion at this node.
UniProtKB:P47817 Β· Xenopus Wee2-A (SF75 paralog) SUPPORTS SOURCE BUT NOT TARGET
Oocyte WEE2 lineage, a different PANTHER subfamily from WEE1 (SF72).
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
PMID:8348613
The human wee1 kinase appears to coordinate the transition between DNA replication and mitosis by protecting the nucleus from this cytoplasmically activated cdc2 kinase
GO:0005737 cytoplasm
IEA
GO_REF:0000107
MARK AS OVER ANNOTATED
Summary: Cytoplasmic activity is a family-level inference not borne out for WEE1.
Reason: The IBA comes from the PTHR11042 root node PTN000113601, whose cytoplasm seeds are dominated by eIF2-alpha kinases, PKMYT1 and other members; human WEE1 is not among the cytoplasm seeds although it seeds the nucleus assertion at the same node. The Ensembl Compara IEA is a projection from mouse Wee1. Human WEE1 is experimentally nuclear, and its defining function is to oppose CDK1 that is activated in the cytoplasm from inside the nucleus. A transient cytoplasmic pool (e.g. during synthesis) is not excluded, but 'active in cytoplasm' over-states the evidence.
Supporting Evidence:
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
PMID:8348613
The human wee1 kinase appears to coordinate the transition between DNA replication and mitosis by protecting the nucleus from this cytoplasmically activated cdc2 kinase
GO:0010972 negative regulation of G2/M transition of mitotic cell cycle
IBA
GO_REF:0000033
ACCEPT
Summary: WEE1 negatively regulates mitotic entry by inhibiting CDK1.
Reason: Overexpressed WEE1 blocks cell division in a kinase-dependent manner, and WEE1 Tyr15 phosphorylation holds cyclin B1-CDK1 inactive until G2/M, when WEE1 is inactivated and degraded. The IBA at PTN008510965 (Euteleostomi) is seeded by human WEE1 itself, which is expected.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7743995
WEE1Hu plays a role in inhibiting mitosis before M phase by phosphorylating cyclin B1-Cdc2
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
GO:0010972 negative regulation of G2/M transition of mitotic cell cycle
IDA
PMID:7743995
Regulation of the human WEE1Hu CDK tyrosine 15-kinase during...
ACCEPT
Summary: WEE1 negatively regulates mitotic entry by inhibiting CDK1.
Reason: Overexpressed WEE1 blocks cell division in a kinase-dependent manner, and WEE1 Tyr15 phosphorylation holds cyclin B1-CDK1 inactive until G2/M, when WEE1 is inactivated and degraded. The IBA at PTN008510965 (Euteleostomi) is seeded by human WEE1 itself, which is expected.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7743995
WEE1Hu plays a role in inhibiting mitosis before M phase by phosphorylating cyclin B1-Cdc2
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
GO:0010972 negative regulation of G2/M transition of mitotic cell cycle
IDA
PMID:8348613
Human wee1 maintains mitotic timing by protecting the nucleu...
ACCEPT
Summary: WEE1 negatively regulates mitotic entry by inhibiting CDK1.
Reason: Overexpressed WEE1 blocks cell division in a kinase-dependent manner, and WEE1 Tyr15 phosphorylation holds cyclin B1-CDK1 inactive until G2/M, when WEE1 is inactivated and degraded. The IBA at PTN008510965 (Euteleostomi) is seeded by human WEE1 itself, which is expected.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7743995
WEE1Hu plays a role in inhibiting mitosis before M phase by phosphorylating cyclin B1-Cdc2
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
GO:0010972 negative regulation of G2/M transition of mitotic cell cycle
IDA
PMID:8428596
Human Wee1 kinase inhibits cell division by phosphorylating ...
ACCEPT
Summary: WEE1 negatively regulates mitotic entry by inhibiting CDK1.
Reason: Overexpressed WEE1 blocks cell division in a kinase-dependent manner, and WEE1 Tyr15 phosphorylation holds cyclin B1-CDK1 inactive until G2/M, when WEE1 is inactivated and degraded. The IBA at PTN008510965 (Euteleostomi) is seeded by human WEE1 itself, which is expected.
Supporting Evidence:
PMID:8428596
purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
PMID:8428596
Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
PMID:7743995
WEE1Hu plays a role in inhibiting mitosis before M phase by phosphorylating cyclin B1-Cdc2
PMID:8348613
the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis
GO:0045740 positive regulation of DNA replication
TAS
Reactome:R-HSA-69656
MODIFY
Summary: Wrong direction: WEE1 restrains, rather than promotes, DNA replication initiation.
Reason: The Reactome pathway mapped to this term (Cyclin A:Cdk2-associated events at S phase entry) includes WEE1 only as the kinase that inhibits Cyclin A:CDK2 through Tyr15 phosphorylation. Direct human-cell evidence shows that loss of WEE1 activity increases replication initiation, causing replication stress. The sign of the annotation should be corrected to negative regulation of DNA replication initiation.
Supporting Evidence:
Reactome:R-HSA-69656
Prior to S phase entry, the activity of Cyclin A:Cdk2 complexes is negatively regulated through Tyr 15 phosphorylation of Cdk2
PMID:22907750
elevation of CDK activity by inhibition of WEE1 kinase rapidly increases initiation of replication
PMID:20194642
WEE1 depletion rapidly induced DNA damage in S phase in newly replicated DNA
GO:2000134 negative regulation of G1/S transition of mitotic cell cycle
TAS
Reactome:R-HSA-69195
KEEP AS NON CORE
Summary: WEE1 can inhibit CDK2 and thereby restrain S-phase entry.
Reason: Endogenous WEE1 phosphorylates several cyclin-associated CDKs, including CDK2 complexes, on Tyr15, and Reactome curates WEE1 phosphorylation of cyclin E:CDK2 as inhibiting S-phase entry. WEE1 levels and activity are highest in S and G2, so this is a secondary context relative to the G2/M role.
Supporting Evidence:
PMID:7743995
the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
Reactome:R-HSA-69195
WEE1 phosphorylates CDK2, inhibiting entry into S-phase

Core Functions

Non-receptor tyrosine kinase that phosphorylates CDK1 Tyr15 in cyclin B1-CDK1 within the nucleus, holding CDK1 inactive and restraining entry into mitosis.

Supporting Evidence:
  • PMID:8428596
    purified human Wee1 phosphorylates p34cdc2 exclusively on Tyr15 in vitro; no Thr14 phosphorylation was detected
  • PMID:8428596
    Mutation of a critical lysine codon (Lys114) believed to be essential for kinase activity abolished both the in vivo mitotic inhibitor function
  • PMID:7743995
    WEE1Hu plays a role in inhibiting mitosis before M phase by phosphorylating cyclin B1-Cdc2
  • PMID:8348613
    the human wee1-like tyrosine kinase is a nuclear protein that ensures the completion of DNA replication prior to mitosis

Phosphorylates CDK2 Tyr15 during S phase, limiting replication-origin firing and preventing replication stress.

Supporting Evidence:
  • PMID:7743995
    the endogenous WEE1Hu phosphorylated several cyclin-associated CDKs on Y15
  • PMID:22907750
    elevation of CDK activity by inhibition of WEE1 kinase rapidly increases initiation of replication
  • PMID:20194642
    WEE1 depletion rapidly induced DNA damage in S phase in newly replicated DNA

References

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Suggested Questions for Experts

Q: Should the histone H2B Tyr37 kinase activity of WEE1 (PMID:22885324) be captured as a regulation-of-histone-gene-transcription process, and is it conserved beyond the yeast and mammalian systems tested?

Q: Is the HPA nucleolar signal for WEE1 reproducible with independent antibodies, given that transfected WEE1 was reported to be excluded from nucleoli?

Suggested Experiments

Experiment: Endogenous tagging of WEE1 with live imaging through S and G2 to test for nucleolar or cytoplasmic pools, combined with a kinase-dead knock-in to separate localization from catalytic activity.

Deep Research

Falcon

(WEE1-deep-research-falcon.md)

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πŸ“š Additional Documentation

Notes

(WEE1-notes.md)

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πŸ“„ View Raw YAML

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