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Product Name Cystatin SN Chinese Name 胱抑素SN/半胱氨酸蛋白酶抑制剂SN抗体 Alias CST1; Cystain SAI; Cystain-SA-I; Cystatin 1; Cystatin-1; Cystatin-SN; Cystatin1; Cysteine proteinase inhibitor, type 2 family; CYTN; CYTN_HUMAN; Salivary cystatin SA1; Salivary cystatin-SA-1. Research Area Cell biology Signal transduction Ubiquitin Immunogen Species Rabbit Clonality Polyclonal React Species Human, Applications ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 ICC=1:100-500 IF=1:100-500 (Paraffin sections need antigen repair)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.Theoretical molecular weight 14kDa Cellular localization cytoplasmic Form Liquid Concentration 1mg/ml immunogen KLH conjugated synthetic peptide derived from human Cystatin SN: 81-141/141 Lsotype IgG Purification affinity purified by Protein A Buffer Solution 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. Storage Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. Attention This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMed PubMed Product Detail The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. There are three inhibitory families in the superfamily, including the type 1 cystatins (stefins), type 2 cystatins and the kininogens. The type 2 cystatin proteins are a class of cysteine proteinase inhibitors found in a variety of human fluids and secretions, where they appear to provide protective functions. The cystatin locus on chromosome 20 contains the majority of the type 2 cystatin genes and pseudogenes. This gene is located in the cystatin locus and encodes a cysteine proteinase inhibitor found in saliva, tears, urine, and seminal fluid. [provided by RefSeq, Jul 2008]
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.
Subcellular Location:
Secreted.
Tissue Specificity:
Expressed in submandibular and sublingual saliva but not in parotid saliva (at protein level). Expressed in saliva, tears, urine and seminal fluid.
Similarity:
Belongs to the cystatin family.
SWISS:
P01037
Gene ID:
1469
Database links:Entrez Gene: 1469 Human
Omim: 123855 Human
SwissProt: P01037 Human
Unigene: 123114 Human
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