Human Cystatin-SN (CST1) ELISA kit

Sample Types: serum, plasma, cell culture supernates, urine, tissue homogenates, cell lysates Detection Range: 0.156 ng/mL-10 ng/mL Sensitivity: 0.039 ng/mL Assay Principle: quantitative Measurement: SandwichAssay Time: 1-5h Sample Volume: 50-100ulDetection Wavelength: 450 nmProtein function: Human saliva appears to contain several cysteine proteinase inhibitors that are immunologically related to cystatin S but that differ in their specificity due to amino acid sequence differences. Cystatin SN, with a pI of 7.5, is a much better inhibitor of papain and dipeptidyl peptidase I than is cystatin S, although both inhibit ficin equally well. [The UniProt Consortium]