Peptide sequence: MMCGAPSATQ PATAETQHIA DQVRSQLEEK ENKKFPVFKA VSFKSQVVAG
Sequence homology: Cow: 100%; Guinea Pig: 86%; Horse: 100%; Human: 100%; Mouse: 93%; Pig: 93%; Rabbit: 79%; Rat: 86%; Sheep: 100%
Cystatin A (also designated STF1, STFA, stefin A or cystatin AS) and cystatin B (also designated PME, CST6, STFB, CPI-B, stefin B and liver thiol proteinase inhibitor) are thiol protease inhibitors that form complexes with Papain and the cathepsins B, H and L. Cystatin A, a cytoplasmic protein, is one of the precursor proteins of the cornified cell envelope in keratinocytes and plays a role in epidermal development and maintenance. Cystatin B protects against intracellular proteases leaking out of lysosomes and is primarily expressed in heart, liver and kidney.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: CPI-B; CST6; cystatin B; Cystatin B (stefin B); cystatin B protein; cystatin beta; Cystatin-B; Cystatin-beta; EPM1; EPM1A; Liver thiol proteinase inhibitor; PME; Stefin-B; STFB; ULD
Gene Aliases: AA960480; BOS_1438; CPI-B; CST6; CSTB; Cyb; Cystatin-B; EPM1; EPM1A; PME; Stefin-B; STFB; ULD