id: Q8TEB1 gene_symbol: DCAF11 product_type: PROTEIN status: COMPLETE taxon: id: NCBITaxon:9606 label: Homo sapiens description: DCAF11 (DDB1- and CUL4-associated factor 11; also called WD repeat-containing protein 23, WDR23) is a WD40-repeat protein that serves as a substrate-recognition receptor of the CRL4 (DDB1-CUL4-RBX1) cullin-RING E3 ubiquitin ligase. Through a conserved WDXR motif it docks onto the DDB1 adaptor of CUL4A- and CUL4B-based complexes and uses its C-terminal WD40 beta-propeller to present specific substrates for polyubiquitination and proteasomal degradation. Characterized substrates include the NRF2/NFE2L2 transcription factor (via the DIDLID sequence of its Neh2 domain), which links DCAF11 to the cellular antioxidant/oxidative-stress response, and the centromeric histone variant CENP-A, whose phospho-Ser68-primed degradation DCAF11 mediates to maintain centromere identity. The protein localizes predominantly to the nucleoplasm, consistent with its nuclear substrates. The orthologous receptor in C. elegans (WDR-23) controls the NRF/Nrf2 ortholog SKN-1, and DCAF11 has also been exploited as a recruited ligase in covalent molecular-glue targeted protein degradation. alternative_products: - name: '1' id: Q8TEB1-1 - name: '2' id: Q8TEB1-2 sequence_note: VSP_008424 - name: '3' id: Q8TEB1-3 sequence_note: VSP_008423 existing_annotations: - term: id: GO:0043161 label: proteasome-mediated ubiquitin-dependent protein catabolic process evidence_type: IBA original_reference_id: GO_REF:0000033 qualifier: involved_in review: summary: DCAF11 is the substrate receptor of the CRL4(DCAF11) E3 ligase and targets multiple substrates for proteasomal degradation, including NRF2 and CENP-A, and additionally p21Cip1/CDKN1A (CRL4B-DCAF11) and the stem-loop binding protein SLBP at the end of S phase. This IBA term correctly captures the core role in ubiquitin-dependent proteolysis and is supported by direct experimental data on substrate degradation. action: ACCEPT reason: Core biological process; supported phylogenetically and by direct degradation studies of NRF2 and CENP-A, with additional DCAF11-specific proteolytic substrates (p21Cip1, SLBP) reported in the primary literature and summarized in the falcon deep research. supported_by: - reference_id: PMID:34758320 supporting_text: Deletion of DCAF11 hampers CENP-A degradation and causes its mislocalization. - reference_id: PMID:31586112 supporting_text: DCAF11 and DDB1-Cul4/Roc1 bind to the DIDLID sequence of the Neh2 domain of Nrf2 to mediate its degradation. - reference_id: file:human/DCAF11/DCAF11-deep-research-falcon.md supporting_text: DCAF11 mediates the degradation of SLBP at the end of S phase through a phosphorylation-dependent mechanism - term: id: GO:0080008 label: Cul4-RING E3 ubiquitin ligase complex evidence_type: IBA original_reference_id: GO_REF:0000033 qualifier: part_of review: summary: DCAF11 is an established component of the CRL4 (DDB1-CUL4) E3 ubiquitin ligase complex, acting as the DDB1-bound substrate receptor. This is the primary, well-supported complex membership annotation. action: ACCEPT reason: Core complex membership; supported by IBA, by direct IDA in PMID:16949367, and by ComplexPortal entries CPX-2403/CPX-2404. supported_by: - reference_id: PMID:16949367 supporting_text: we identify 18 Ddb1- and Cul4-associated factors (DCAFs), including 14 containing WD40 repeats. DCAFs interact with multiple surfaces on Ddb1. - term: id: GO:0005515 label: protein binding evidence_type: IPI original_reference_id: PMID:19109893 qualifier: enables review: summary: Generic protein-binding annotation from an interactome dataset with DDB1 (Q16531). The specific, informative function (DDB1-docked substrate receptor) is captured better by other terms; bare protein binding is uninformative. action: MARK_AS_OVER_ANNOTATED reason: Bare protein binding (GO:0005515) is uninformative; the meaningful DDB1 interaction is captured by the substrate-receptor MF and complex terms. supported_by: - reference_id: PMID:19109893 supporting_text: Structural basis of UV DNA-damage recognition by the DDB1-DDB2 complex. - term: id: GO:0005515 label: protein binding evidence_type: IPI original_reference_id: PMID:22190034 qualifier: enables review: summary: Interaction with HIV-1 Vif (P12504) from a viral-host interactome screen. Represents viral hijacking of CRL machinery, not an endogenous DCAF11 function; the bare protein-binding term is uninformative. action: MARK_AS_OVER_ANNOTATED reason: Xeno viral-host interactome hit; bare protein binding does not inform endogenous gene function. supported_by: - reference_id: PMID:22190034 supporting_text: Global landscape of HIV-human protein complexes. - term: id: GO:0005515 label: protein binding evidence_type: IPI original_reference_id: PMID:28514442 qualifier: enables review: summary: Generic protein-binding annotation with DDB1 (Q16531) from a large-scale interactome map. Uninformative as a bare term; the DDB1 interaction is already captured by complex/substrate-receptor terms. action: MARK_AS_OVER_ANNOTATED reason: Bare protein binding from high-throughput interactome; not specifically informative. supported_by: - reference_id: PMID:28514442 supporting_text: Architecture of the human interactome defines protein communities and disease networks. - term: id: GO:0005515 label: protein binding evidence_type: IPI original_reference_id: PMID:32296183 qualifier: enables review: summary: Generic protein-binding annotation from a binary (Y2H) interactome map with high-throughput partners (AGR2, TNNI1, TNNI2, RCN1, GPSM1) lacking functional follow-up. Bare protein binding is uninformative and these are likely non-physiological screen hits. action: MARK_AS_OVER_ANNOTATED reason: High-throughput binary interactome partners without functional validation; bare protein binding uninformative. supported_by: - reference_id: PMID:32296183 supporting_text: A reference map of the human binary protein interactome. - term: id: GO:0005515 label: protein binding evidence_type: IPI original_reference_id: PMID:33961781 qualifier: enables review: summary: Generic protein-binding annotation with DDB1 (Q16531) from a proteome-scale interactome dataset. Uninformative bare term; DDB1 interaction already represented by complex/substrate-receptor annotations. action: MARK_AS_OVER_ANNOTATED reason: Bare protein binding from large-scale interactome; not specifically informative. supported_by: - reference_id: PMID:33961781 supporting_text: Dual proteome-scale networks reveal cell-specific remodeling of the human interactome. - term: id: GO:0005515 label: protein binding evidence_type: IPI original_reference_id: PMID:35271311 qualifier: enables review: summary: Generic protein-binding annotation with DDB1 (Q16531) from the OpenCell endogenous-tagging interactome. Uninformative as bare protein binding; the DDB1 interaction is captured by the substrate-receptor and complex terms. action: MARK_AS_OVER_ANNOTATED reason: Bare protein binding from high-throughput interactome; not specifically informative. supported_by: - reference_id: PMID:35271311 supporting_text: 'OpenCell: Endogenous tagging for the cartography of human cellular organization.' - term: id: GO:0016567 label: protein ubiquitination evidence_type: IEA original_reference_id: GO_REF:0000041 qualifier: involved_in review: summary: DCAF11 functions in protein ubiquitination as the substrate receptor of the CRL4(DCAF11) ligase. This UniPathway-derived IEA term is consistent with direct evidence that DCAF11 mediates substrate ubiquitination. action: ACCEPT reason: Correct process annotation, supported by experimental substrate ubiquitination data. supported_by: - reference_id: PMID:34758320 supporting_text: DCAF11 (DDB1 and CUL4 associated factor 11/WDR23) is the E3 ligase that specifically mediates the observed polyubiquitination. - term: id: GO:0031464 label: Cul4A-RING E3 ubiquitin ligase complex evidence_type: NAS original_reference_id: PMID:16949367 qualifier: part_of review: summary: DCAF11 assembles into the CUL4A variant of the CRL4 complex (ComplexPortal CPX-2403). This more specific child of GO:0080008 is supported; keep as a valid but non-core specialization, with GO:0080008 as the core term. action: KEEP_AS_NON_CORE reason: Valid CUL4A-variant complex membership (ComplexPortal CPX-2403); more specific than the core GO:0080008 annotation. supported_by: - reference_id: PMID:16949367 supporting_text: DCAFs interact with multiple surfaces on Ddb1, and the interaction of WD40-containing DCAFs with Ddb1 requires a conserved WDXR motif. - term: id: GO:0031465 label: Cul4B-RING E3 ubiquitin ligase complex evidence_type: NAS original_reference_id: PMID:16949367 qualifier: part_of review: summary: DCAF11 assembles into the CUL4B variant of the CRL4 complex (ComplexPortal CPX-2404). This more specific child of GO:0080008 is supported; keep as a valid but non-core specialization, with GO:0080008 as the core term. action: KEEP_AS_NON_CORE reason: Valid CUL4B-variant complex membership (ComplexPortal CPX-2404); more specific than the core GO:0080008 annotation. supported_by: - reference_id: PMID:16949367 supporting_text: DCAFs interact with multiple surfaces on Ddb1, and the interaction of WD40-containing DCAFs with Ddb1 requires a conserved WDXR motif. - term: id: GO:0080135 label: regulation of cellular response to stress evidence_type: NAS original_reference_id: PMID:31586112 qualifier: involved_in review: summary: By targeting NRF2 for degradation, DCAF11 modulates the NRF2-driven antioxidant/oxidative-stress response. This regulatory process annotation is supported but is a downstream/indirect consequence of the core ligase function rather than a core activity. action: KEEP_AS_NON_CORE reason: Supported via the NRF2/oxidative-stress axis but downstream of the core ubiquitin-ligase substrate-receptor function. supported_by: - reference_id: PMID:31586112 supporting_text: DCAF11 and DDB1-Cul4/Roc1 bind to the DIDLID sequence of the Neh2 domain of Nrf2 to mediate its degradation. - term: id: GO:1902412 label: regulation of mitotic cytokinesis evidence_type: NAS original_reference_id: PMID:34758320 qualifier: involved_in review: summary: The cited paper shows DCAF11 mediates phospho-Ser68 CENP-A degradation to maintain centromere identity and prevent ectopic CENP-A localization during the cell cycle; it does not demonstrate a role in cytokinesis. This label over-reaches the evidence. action: MARK_AS_OVER_ANNOTATED reason: The publication concerns CENP-A/centromere homeostasis, not mitotic cytokinesis; the term is an imprecise over-interpretation. supported_by: - reference_id: PMID:34758320 supporting_text: the Ser68 phosphorylation plays an important role in regulating cellular CENP-A homeostasis via DCAF11-mediated degradation to prevent ectopic localization of CENP-A during the cell cycle. - term: id: GO:0005654 label: nucleoplasm evidence_type: IDA original_reference_id: GO_REF:0000052 qualifier: located_in review: summary: Immunofluorescence (HPA) localizes DCAF11 to the nucleoplasm, consistent with its nuclear substrates (NRF2, CENP-A) and with the nuclear CRL4 cycle. action: ACCEPT reason: Direct immunofluorescence localization, consistent with nuclear substrate biology. supported_by: - reference_id: file:human/DCAF11/DCAF11-uniprot.txt supporting_text: 'GO; GO:0005654; C:nucleoplasm; IDA:HPA.' - term: id: GO:0005515 label: protein binding evidence_type: IPI original_reference_id: PMID:16949367 qualifier: enables review: summary: This IPI captures the functionally meaningful interactions with DDB1 and the cullins (Q16531/Q13619/Q13620) that constitute CRL4(DCAF11) assembly. The specific, informative function is the DDB1-docked substrate-receptor activity rather than bare protein binding. action: MODIFY reason: The interaction with DDB1/CUL4 reflects the substrate-receptor adaptor role; replace uninformative protein binding with the specific MF term. proposed_replacement_terms: - id: GO:1990756 label: ubiquitin-like ligase-substrate adaptor activity supported_by: - reference_id: PMID:16949367 supporting_text: we identify 18 Ddb1- and Cul4-associated factors (DCAFs), including 14 containing WD40 repeats. DCAFs interact with multiple surfaces on Ddb1. - term: id: GO:0005515 label: protein binding evidence_type: IPI original_reference_id: PMID:27018634 qualifier: enables review: summary: Interaction with an E. coli type III secretion system effector (Q8XB62) from a pathogen-effector screen. Not an endogenous DCAF11 function; the bare protein-binding term is uninformative. action: MARK_AS_OVER_ANNOTATED reason: Pathogen effector interactome hit; bare protein binding does not inform endogenous gene function. supported_by: - reference_id: PMID:27018634 supporting_text: Quantitative Mass Spectrometry Identifies Novel Host Binding Partners for Pathogenic Escherichia coli Type III Secretion System Effectors. - term: id: GO:0005654 label: nucleoplasm evidence_type: TAS original_reference_id: Reactome:R-HSA-8952638 qualifier: located_in review: summary: Reactome places the CRL4 complex (here DCAF11) in the nucleoplasm during the neddylation/deneddylation regulatory cycle. Consistent with the IDA nucleoplasm localization. action: ACCEPT reason: Nucleoplasm localization corroborated by independent IDA evidence. supported_by: - reference_id: file:human/DCAF11/DCAF11-uniprot.txt supporting_text: 'GO; GO:0005654; C:nucleoplasm; IDA:HPA.' - term: id: GO:0005654 label: nucleoplasm evidence_type: TAS original_reference_id: Reactome:R-HSA-8952639 qualifier: located_in review: summary: Reactome places the CRL4 complex (here DCAF11) in the nucleoplasm during the neddylation regulatory cycle. Consistent with the IDA nucleoplasm localization. action: ACCEPT reason: Nucleoplasm localization corroborated by independent IDA evidence. supported_by: - reference_id: file:human/DCAF11/DCAF11-uniprot.txt supporting_text: 'GO; GO:0005654; C:nucleoplasm; IDA:HPA.' - term: id: GO:0005654 label: nucleoplasm evidence_type: TAS original_reference_id: Reactome:R-HSA-8955245 qualifier: located_in review: summary: Reactome places the CRL4 complex (here DCAF11) in the nucleoplasm during the CAND1 exchange cycle. Consistent with the IDA nucleoplasm localization. action: ACCEPT reason: Nucleoplasm localization corroborated by independent IDA evidence. supported_by: - reference_id: file:human/DCAF11/DCAF11-uniprot.txt supporting_text: 'GO; GO:0005654; C:nucleoplasm; IDA:HPA.' - term: id: GO:0005654 label: nucleoplasm evidence_type: TAS original_reference_id: Reactome:R-HSA-8955285 qualifier: located_in review: summary: Reactome places the CRL4 complex (here DCAF11) in the nucleoplasm during COMMD-mediated CAND1 displacement. Consistent with the IDA nucleoplasm localization. action: ACCEPT reason: Nucleoplasm localization corroborated by independent IDA evidence. supported_by: - reference_id: file:human/DCAF11/DCAF11-uniprot.txt supporting_text: 'GO; GO:0005654; C:nucleoplasm; IDA:HPA.' - term: id: GO:0005654 label: nucleoplasm evidence_type: TAS original_reference_id: Reactome:R-HSA-8956045 qualifier: located_in review: summary: Reactome places the CRL4 complex (here DCAF11) in the nucleoplasm during COP9 signalosome-mediated deneddylation. Consistent with the IDA nucleoplasm localization. action: ACCEPT reason: Nucleoplasm localization corroborated by independent IDA evidence. supported_by: - reference_id: file:human/DCAF11/DCAF11-uniprot.txt supporting_text: 'GO; GO:0005654; C:nucleoplasm; IDA:HPA.' - term: id: GO:0080008 label: Cul4-RING E3 ubiquitin ligase complex evidence_type: IDA original_reference_id: PMID:16949367 qualifier: part_of review: summary: Direct identification of DCAF11 in DDB1-CUL4A complexes by tandem-affinity purification and mass spectrometry establishes CRL4 complex membership. This is the core, experimentally grounded complex annotation. action: ACCEPT reason: Core complex membership directly demonstrated by affinity purification/MS. supported_by: - reference_id: PMID:16949367 supporting_text: we identify 18 Ddb1- and Cul4-associated factors (DCAFs), including 14 containing WD40 repeats. core_functions: - description: Substrate-recognition receptor of the CRL4(DCAF11) cullin-RING E3 ubiquitin ligase; uses its WD40 beta-propeller to bind substrates and a WDXR motif to dock on the DDB1 adaptor of CUL4A/CUL4B complexes, presenting substrates for polyubiquitination and proteasomal degradation. supported_by: - reference_id: PMID:16949367 supporting_text: we identify 18 Ddb1- and Cul4-associated factors (DCAFs), including 14 containing WD40 repeats. DCAFs interact with multiple surfaces on Ddb1, and the interaction of WD40-containing DCAFs with Ddb1 requires a conserved WDXR motif. molecular_function: id: GO:1990756 label: ubiquitin-like ligase-substrate adaptor activity in_complex: id: GO:0080008 label: Cul4-RING E3 ubiquitin ligase complex directly_involved_in: - id: GO:0043161 label: proteasome-mediated ubiquitin-dependent protein catabolic process - description: Targets the NRF2/NFE2L2 transcription factor for ubiquitin-dependent degradation by binding the DIDLID sequence of its Neh2 domain, thereby tuning the NRF2-driven antioxidant/oxidative-stress transcriptional program. supported_by: - reference_id: PMID:31586112 supporting_text: DCAF11 and DDB1-Cul4/Roc1 bind to the DIDLID sequence of the Neh2 domain of Nrf2 to mediate its degradation. - reference_id: PMID:31586112 supporting_text: indicating that DCAF11 is a functional E3-ubiquitin ligase for Nrf2. - reference_id: file:human/DCAF11/DCAF11-deep-research-falcon.md supporting_text: DCAF11 binds to the DIDLID sequence within the Neh2 domain of NRF2, a motif that is distinct from the KEAP1-binding DLG and ETGE motifs - description: Mediates phospho-Ser68-primed ubiquitination and degradation of the centromeric histone variant CENP-A to maintain centromere identity and prevent ectopic CENP-A localization during the cell cycle. supported_by: - reference_id: PMID:34758320 supporting_text: DCAF11 (DDB1 and CUL4 associated factor 11/WDR23) is the E3 ligase that specifically mediates the observed polyubiquitination. - reference_id: PMID:34758320 supporting_text: Deletion of DCAF11 hampers CENP-A degradation and causes its mislocalization. proposed_new_terms: [] suggested_questions: - question: What is the full repertoire of endogenous CRL4(DCAF11) substrates, and which degrons/recognition motifs does the DCAF11 WD40 propeller read? - question: Does DCAF11 preferentially partner with CUL4A versus CUL4B in specific cellular contexts, and is there substrate specialization between the two variants? - question: How is CRL4(DCAF11) activity itself regulated (neddylation/CAND1 exchange, expression control such as TFEB repression) under oxidative and proteotoxic stress? suggested_experiments: - description: Define the CRL4(DCAF11) substrate landscape using global protein-stability profiling (e.g., quantitative diGly ubiquitinome and degradation/half-life proteomics) comparing DCAF11-knockout versus wild-type cells. - description: Determine a cryo-EM or crystal structure of DCAF11 bound to DDB1 and to a substrate degron peptide (e.g., NRF2 Neh2 DIDLID or phospho-CENP-A) to map the recognition surface. - description: Test for genetic separation of function between CUL4A- and CUL4B-based CRL4(DCAF11) complexes by selective depletion and substrate-stabilization readouts. references: - id: GO_REF:0000033 title: Annotation inferences using phylogenetic trees findings: [] - id: GO_REF:0000041 title: Gene Ontology annotation based on UniPathway vocabulary mapping findings: [] - id: GO_REF:0000052 title: Gene Ontology annotation based on curation of immunofluorescence data findings: [] - id: PMID:16949367 title: A family of diverse Cul4-Ddb1-interacting proteins includes Cdt2, which is required for S phase destruction of the replication factor Cdt1. findings: - statement: DCAF11 is one of 18 DDB1- and CUL4-associated factors (DCAFs) that serve as substrate receptors, docking on DDB1 via a conserved WDXR motif. supporting_text: we identify 18 Ddb1- and Cul4-associated factors (DCAFs), including 14 containing WD40 repeats. DCAFs interact with multiple surfaces on Ddb1, and the interaction of WD40-containing DCAFs with Ddb1 requires a conserved WDXR motif. - id: PMID:16964240 title: Molecular architecture and assembly of the DDB1-CUL4A ubiquitin ligase machinery. findings: - statement: WD40-repeat DCAFs dock on the DDB1 double-beta-propeller of the DDB1-CUL4A-ROC1 ligase to present substrates for ubiquitination. supporting_text: DDB1 uses one beta-propeller domain for cullin scaffold binding and a variably attached separate double-beta-propeller fold for substrate presentation. - id: PMID:19109893 title: Structural basis of UV DNA-damage recognition by the DDB1-DDB2 complex. findings: [] - id: PMID:22190034 title: Global landscape of HIV-human protein complexes. findings: [] - id: PMID:27018634 title: Quantitative Mass Spectrometry Identifies Novel Host Binding Partners for Pathogenic Escherichia coli Type III Secretion System Effectors. findings: [] - id: PMID:28514442 title: Architecture of the human interactome defines protein communities and disease networks. findings: [] - id: PMID:31586112 title: TFEB activates Nrf2 by repressing its E3 ubiquitin ligase DCAF11 and promoting phosphorylation of p62. findings: - statement: DCAF11 is a functional E3 ubiquitin ligase substrate receptor for NRF2, binding the DIDLID sequence of the Neh2 domain to mediate its degradation; TFEB transcriptionally represses DCAF11 to stabilize NRF2. supporting_text: DCAF11 and DDB1-Cul4/Roc1 bind to the DIDLID sequence of the Neh2 domain of Nrf2 to mediate its degradation. - id: PMID:32296183 title: A reference map of the human binary protein interactome. findings: [] - id: PMID:33961781 title: Dual proteome-scale networks reveal cell-specific remodeling of the human interactome. findings: [] - id: PMID:34758320 title: Phosphorylation at Ser68 facilitates DCAF11-mediated ubiquitination and degradation of CENP-A during the cell cycle. findings: - statement: DCAF11 is the E3 ligase that specifically mediates phospho-Ser68-primed polyubiquitination and degradation of CENP-A; its deletion impairs CENP-A degradation and causes mislocalization. supporting_text: DCAF11 (DDB1 and CUL4 associated factor 11/WDR23) is the E3 ligase that specifically mediates the observed polyubiquitination. Deletion of DCAF11 hampers CENP-A degradation and causes its mislocalization. - id: PMID:35271311 title: 'OpenCell: Endogenous tagging for the cartography of human cellular organization.' findings: [] - id: Reactome:R-HSA-8952638 title: AcM-UBE2M transfers NEDD8 to CRL4 E3 ubiquitin ligase complex findings: [] - id: Reactome:R-HSA-8952639 title: NEDD8:AcM-UBE2M binds CRL4 E3 ubiquitin ligase complex findings: [] - id: Reactome:R-HSA-8955245 title: CAND1 binds CRL4 E3 ubiquitin ligase in the nucleus findings: [] - id: Reactome:R-HSA-8955285 title: COMMDs displace CAND1 from CRL4 E3 ubiquitin ligase complex findings: [] - id: Reactome:R-HSA-8956045 title: COP9 signalosome deneddylates nuclear CRL4 E3 ubiquitin ligase complex findings: [] - id: file:human/DCAF11/DCAF11-deep-research-falcon.md title: Falcon deep research report for DCAF11 findings: - statement: DCAF11/WDR23 is a CRL4 substrate receptor with multiple DCAF11-specific substrates reported in the primary literature, including NRF2 (DIDLID degron in the Neh2 domain), p21Cip1/CDKN1A (CRL4B-DCAF11, S-phase progression), and SLBP (phospho-dependent end-of-S-phase degradation); it has additionally been developed as a recruited E3 ligase for targeted protein degradation. supporting_text: DCAF11 (WDR23) is a multifunctional substrate receptor within the CRL4 E3 ubiquitin ligase complex that regulates diverse cellular processes including oxidative stress response, cell cycle progression, DNA damage repair, metabolic homeostasis, and host-pathogen interactions. reference_review: relevance: HIGH correctness: UNVERIFIED review_notes: "LLM-synthesized (Edison/falcon) deep research report. DCAF11-specific substrate/receptor claims that trace to primary papers are credible and useful: NRF2 via DIDLID (Lo 2017 PMID-pending / Park 2019 = PMID:31586112), p21/CDKN1A via CRL4B-DCAF11 (Chen 2017), SLBP end-of-S-phase degradation (Djakbarova 2016), and the 2023-2024 TPD/PROTAC work (Xue 2023, Wang 2024, Parker 2024) establishing DCAF11 as a recruited degrader for BRD4. These are not yet in GOA so are NOT added as new annotations here, but they corroborate the core ubiquitin-ligase substrate-receptor function. CAUTION / not relied upon: the report's isoform localization assignments (which UniProt isoform is nuclear vs cytoplasmic), the IDE link (explicitly indirect via NRF2 transcription, not a DCAF11 substrate), the GEN-1 / influenza PB2 K29 claims, and any family-level CRL4/DCAF generalization were treated as unverified family-or-inference material and not used to drive annotation actions. Mark UNVERIFIED pending primary-source confirmation."