Human reference: https://www.uniprot.org/uniprotkb/P50613/entry
Primary source: PMID:15530371 The crystal structure of human CDK7 and its protein recognition properties..
CDK7, a member of the cyclin-dependent protein kinase family, regulates the
activities of other CDKs through phosphorylation on their activation segment and
hence contributes to control of the eukaryotic cell cycle. CDK7 also assists in
the regulation of transcription as part of the transcription factor TFIIH
complex. For maximum activity and stability, CDK7 requires phosphorylation,
association with cyclin H, and association with a third protein, MAT1.
The horse sequence comparison is in CDK7-bioinformatics/RESULTS.md. Transfer is assessed for this exact accession; human biochemical evidence is not equine experimental validation.