UniProt functional annotation for P61925

UniProt code: P61925.

Organism: Homo sapiens (Human).
Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
 
Function: Extremely potent competitive inhibitor of cAMP-dependent protein kinase activity, this protein interacts with the catalytic subunit of the enzyme after the cAMP-induced dissociation of its regulatory chains.
 
Miscellaneous: The inhibitory site contains regions very similar to the hinge regions (sites that directly interact with the enzyme active site) and 'pseudosubstrate site' of the regulatory chains; but, unlike these chains, PKI does not contain cAMP-binding sites. The arginine residues within the inhibitory site are essential for inhibition and recognition of the enzyme active site.
Similarity: Belongs to the PKI family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.