Gene Ontology annotation through association of InterPro records with GO terms

The InterPro serine/threonine-kinase active-site signature (IPR008271) correctly identifies the protein as a protein kinase, but the derived protein kinase activity term is less specific than the serine/threonine kinase term available from other evidence lines.

Annotation inferences using phylogenetic trees

PANTHER/PAINT phylogenetic inference places the protein in the ribosomal protein S6 kinase family (PTHR24351) and propagates protein serine/threonine kinase activity and cytoplasmic/nuclear activity from ancestral nodes seeded by experimentally characterized family members (human RSK/MSK/S6K kinases, yeast and fission yeast kinases, and others).

Electronic Gene Ontology annotations created by transferring manual GO annotations between related proteins based on shared sequence features

Sequence feature-based transfer recovers accurate but overly broad functional terms (nucleotide binding, kinase activity, transferase activity) that are redundant with the more specific serine/threonine kinase annotation.

GO_REF:0000120

Combined Automated Annotation using Multiple IEA Methods

Combined IEA methods correctly recover the specific protein serine/threonine kinase activity and ATP binding annotations from InterPro domain architecture.

file:XENTR/A0A8J1IYX6/A0A8J1IYX6-deep-research-falcon.md

Deep research summary for LOC101732819 in Xenopus tropicalis

The report accepts the RefSeq-derived protein name "Protein kinase C delta type" and summarizes canonical mammalian PKCdelta/PRKCD biology (C1A/C1B DAG-binding domains, calcium-independent C2-like domain, caspase-3 cleavage, apoptotic signaling). This content conflicts with the actual sequence features of A0A8J1IYX6, which has no C1 or C2 domains and is classified by PANTHER in the ribosomal protein S6 kinase family (PTHR24351); the report itself notes that no studies specifically investigating LOC101732819 were identified.

file:XENTR/A0A8J1IYX6/A0A8J1IYX6-uniprot.txt

UniProt entry A0A8J1IYX6

Identifies the protein as belonging to the protein kinase superfamily with a protein kinase domain (residues 113-366) and AGC-kinase C-terminal domain (residues 367-424), an ATP-binding site at position 142, and a disordered N-terminal region (residues 1-103) enriched in basic and acidic residues. No C1 or C2 domains are annotated.
PANTHER classifies the protein in family PTHR24351 (ribosomal protein S6 kinase), indicating membership of the RSK/MSK/S6K branch of AGC kinases rather than the PKC family, despite the RefSeq-derived name "Protein kinase C delta type".