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|Product Name||KLK3, 25-261aa, Human|
|Amino Acid Sequence||MGSSHHHHHH SSGLVPRGSH MGSHMIVGGW ECEKHSQPWQ VLVASRGRAV CGGVLVHPQW VLTAAHCIRN KSVILLGRHS LFHPEDTGQV FQVSHSFPHP LYDMSLLKNR FLRPGDDSSH DLMLLRLSEP AELTDAVKVM DLPTQEPALG TTCYASGWGS IEPEEFLTPK KLQCVDLHVI SNDVCAQVHP QKVTKFMLCA GRWTGGKSTC SGDSGGPLVC NGVLQGITSW GSEPCALPER PSLYTKVVHY RKWIKDTIVA NP|
|Background||Prostate-specific antigen (PSA), also known as gamma-seminoprotein or kallikrein-3 (KLK3), is a member of the kallikrein-related peptidase family. Kallikreins are a subgroup of serine proteases having diverse physiological functions. Growing evidence suggests that many kallikreins are implicated in carcinogenesis and some have potential as novel cancer and other disease biomarkers. This protein is one of the fifteen kallikrein subfamily members located in a cluster on chromosome 19 and is a protease present in seminal plasma. It is thought to function normally in the liquefaction of seminal coagulum, presumably by hydrolysis of the high molecular mass seminal vesicle protein. Serum level of this protein, called PSA in the clinical setting, is useful in the diagnosis and monitoring of prostatic carcinoma. Recombinant human KLK3 protein, fused to His-tag at N-terminus, was expressed in E.coli.|
|Concentration||1 mg/ml (determined by Bradford assay)|
|Form||Liquid, in 20mM Tris-HCl buffer (pH 8.0) containing 0.1M NaCl, 10% glycerol, 1mM DTT|
|Intended Use||For Research Use Only|
|Molecular Weight||35.9 kDa (322aa), confirmed by MALDI-TOF|
|NCBI Accession #||NP_001639|
|Purity||> 90% by SDS-PAGE|
|References||Yang Q.F., et al. (2000) J. Hum. Genet. 45:363-366
Cramer S.D., et al. (2003) J. Natl. Cancer Inst. 95:1044-1053
|Storage||Can be stored at +4C short term (1-2 weeks). For long term storage, aliquot and store at -20C or -70C. Avoid repeated freezing and thawing cycles.|
|Synonyms||Prostate-specific antigen, APS, hK3, KLK2A1, PSA|
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