Recombinant Human CST9L/Testatin Protein (Fc Tag) | PKSH030679

Recombinant Human CST9L/Testatin Protein (Fc Tag) | PKSH030679 | Gentaur US, UK & Europe Disrtribition

Synonyms: bA218C14.1;CTES7B;PRO3543;UNQ1835

Active Protein: N/A

Activity: A DNA sequence encoding the human CST9L (Q9H4G1) (Met 1-His 147) was fused with the Fc region of human IgG1 at the C-terminus.

Protein Construction: A DNA sequence encoding the human CST9L (Q9H4G1) (Met 1-His 147) was fused with the Fc region of human IgG1 at the C-terminus.

Fusion Tag: C-Fc

Species: Human

Expressed Host: HEK293 Cells

Shipping: This product is provided as lyophilized powder which is shipped with ice packs.

Purity: > 92 % as determined by reducing SDS-PAGE.

Endotoxin: < 1.0 EU per µg as determined by the LAL method.

Stability and Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.

Molecular Mass: 41.3 kDa

Formulation: Lyophilized from sterile PBS, pH 7.4

Reconstitution: Please refer to the printed manual for detailed information.

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.

Research Area: Cell biology