Testatin Protein

Cystatin 9-like

Testatin Products

Testatin Protein, Recombinant

Molecule	Species	Description //For Detailed Info. and Price------CLICK!	Cat No
Testatin	Human	CST9L / Testatin Protein, Recombinant	13243-H02H

Testatin Related Areas

Enzyme>>Protease & Regulator>>Cysteine Protease & Regulator>>Testatin

Testatin Alternative Names

UNQ1835/PRO3543, FLJ92394, bA218C14.1, cystatin-9-like, testatin [Homo sapiens]

RP23-250M11.7, M12, cresp, testatin, cystatin-9 [Mus musculus]

Testatin Background

Testatin is a member of the Cystatin family. Cystatins comprise genes that all show expression patterns that are strikingly restricted to reproductive tissue. Cystatins are a family of cysteine protease inhibitors with homology to chicken cystatin. There are typically about 115 amino acids in this family. They are largely acidic, contain four conserved cysteine residues known to form two disulfide bonds, may be glycosylated and/or phosphorylated, with similarity to fetuins, kininogens, stefins, histidine-rich glycoproteins and cystatin-related proteins. Testatin shows homology to family 2 cystatins, a group of broadly expressed small secretory proteins that are inhibitors of cysteine proteases in vitro but whose in vivo functions are unclear. It is expressed in germ cells and somatic cells in reproductive tissues. Testatin is considered a strong candidate for involvement in early testis development. Testatin expression is maintained in the adult Sertoli cell, and it can also be found in a small population of germ cells.

Testatin Related Studies

1. Dickinson DP, et al. (1993) Genomic cloning, physical mapping, and expression of human type 2 cystatin genes. Crit Rev Oral Biol. 4(3-4):573-80.
2. Dickinson DP, et al. (1995) Direct mapping of seven genes encoding human type 2 cystatins to a single site located at 20p11.2. Genomics. 24(1):172-5.
3. Thiesse M, et al. (1994) The human type 2 cystatin gene family consists of eight to nine members, with at least seven genes clustered at a single locus on human chromosome 20. DNA Cell Biol. 13(2): 97-116.