Function
Specific inhibition of calpain (calcium-dependent cysteine protease). Plays a key role in postmortem tenderization of meat and have been proposed to be involved in muscle protein degradation in living tissue (By similarity).
Similarity
Belongs to the protease inhibitor I27 (calpastatin) family.
Sequence
MNPTEAKAIPGSKQLEGPHSPNKKRHKKQAVKTEPEKKSQSTKPSVVHEKKTQEVKPKEHTEPKSQPKHPSDTRSKHAPKEKAVSKSSEQPPSEKSTKPKTKSQDEISGGGKSAVPAVAAAASAEPADKNKESKLLTSAVPVESKPSKPSAKSDMDTALDDLIDTLGEPEETKEDTTTYTGPEVSDPMSSTYIEELGKREVTLPPKYRELLNKEEGIAGPPPDSSKPLGPNDAIDALSSDFTCSSPTADAKKTEKEKSTEEALKAQSAGVIRSAAPPKEKRRKVEEDTMTEQALEALSASLGTRKPRPELDPSSIKEVDEAKAKEEKVKKCGEDEERVPSEYRLKPATDKDGKPLLPEAEEKPKPLSESELIDELSEDFDRSKCKEKQSKPTEKNRGIPGRCPRACARGCASDLHVFCAVSSTHSSSSEGMVPDDAVEALAGSLGKKEADPEDGKPVEDKVKEKAKEEDREKLGEREETIPPDYRLEEAKDKDGKPLPPKEVKEPLPPLSEDFLLDALSKDFTVPSDTSSPQFEDAKLSVVVSEVVSQTPAPTTQAAGPPRDSARDNKELDDALDQLSDSLGQRQPDPDEHKPVEDKVKEKAKAEHRDKLGERDDTIPPKYQHLLDDNKEGTPGKPKRSESPRHQRSPRHQRNLQVPRTPLTPSQGTWTAVPQLQKPQQTQQRTKTRSLLPSDKAPRNGGKAKDSTKAKEETSKPKADGKSTS