Essential for the control of the cell cycle at the G2/M (mitosis) transition
Original wording and all model/source metadata are retained in CycA-protnlm-source.json.
Supported conserved function (CNN as established same-gene G2/M biology). Cyclin A has a demonstrated role in mitotic progression, and the selected PC protein retains the characterized cyclin domain. The one-residue N-terminal difference supplies no evidence of loss of that broad role. The exact temporal claim is transferred from characterized CycA biology, not independently measured in PC.
PMID:2564316(https://pubmed.ncbi.nlm.nih.gov/2564316/) establishes cell-cycle-dependent localization and the requirement for continued division; PMID:17431409(https://pubmed.ncbi.nlm.nih.gov/17431409/) dissects cyclin/CDK substrate-recognition control. Sequence comparison verifies complete cyclin-domain retention. The original paragraph and its plant-donor P46277 metadata are preserved; the native fly evidence supports the broad statement independently of that donor.