Cystatins are a family of serine protease inhibitor proteins that are structurally homologous to chicken cystatin. Typical cystatin contains about 115 amino acids , has 4 evolutionarily conserved cysteine residues, forming two disulfide bonds . Cystatins can undergo glycosylation and / or phosphorylation .
Human cystatin genes
- CST1 , CST2 , CST3 , CST4 , CST5 , CST6 , CST7 , CST8 , CST9 , CST11 , CSTA , CSTB
See also
- Cystatin C