Human CellExp Kallikrein-3, human recombinant protein
KLK3, KLKB1, Kallikrein-3, APS, KLK2A1, PSA, Hk3, Seminin, Semenogelase
|Calculated MW||This protein is fused with 6×His tag at the C-terminus, has a calculated MW of 27.7 kDa. The predicted N-terminus is Ala 18. DTT-reduced Protein migrates as 36 kDa due to glycosylation.|
|Other Names||KLK3, KLKB1, Kallikrein-3, APS, KLK2A1, PSA, Hk3, Seminin, Semenogelase|
|Results||Measured by its ability to cleave the colorimetric peptide substrate, Succinyl – Arg – Pro – Tyr – p – Nitroanilide (Suc-RPY-pNA). The specific activity is >60 pmoles / min / µg.|
|Application Notes||Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.|
|Storage||-20°C; Lyophilized from 0.22 µm filtered solution in 50 mM Tris, 150 mM NaCl, pH 7.5. Normally Mannitol or Trehalose is added as protectants before lyophilization.|
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Provided below are standard protocols that you may find useful for product applications.
Kallikrein-3 (KLK3) is also known as Prostate-specific antigen (PSA), APS, Gamma-seminoprotein (Seminin), P-30 antigen, Semenogelase, is a glycoprotein enzyme, is a member of the kallikrein-related peptidase family and is secreted by the epithelial cells of the prostate gland. The preferential cleavage site of KLK3 is “-Tyr-|-Xaa-“, the catalytic activity is inhibited by SERPINA5 and is strongly inhibited by Zn2+. KLK3 hydrolyzes semenogelin-1 thus leading to the liquefaction of the seminal coagulum.
Chung D.W.,et al.Biochemistry 25:2410-2417(1986).
Yu H.,et al.Genomics 69:225-234(2000).
Ota T.,et al.Nat. Genet. 36:40-45(2004).
Hillier L.W.,et al.Nature 434:724-731(2005).
Mural R.J.,et al.Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases.
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