人前列腺特异性抗原（天然蛋白）

bs-41609P

Human Prostate Specific Antigen protein

人前列腺特异性抗原（天然蛋白）

PSA; Native Human Prostate Specific Antigen protein; Prostate Specific Antigen, Native;

Lyophilized or Liquid

34

Yes

Purified native protein

>95% as determined by SDS-PAGE

Not analyzed

Stored at -70℃ or -20℃. Avoid repeated freeze/thaw cycles.

This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.

KLK3目前认为是前列腺癌很有意义的特异性标志物。激肽释放酶KLK是激肽系统的主要限速酶，它是一组存在于多数组织和体液中的丝氨酸蛋白酶，是一种肽链内切酶。KLK又称血管舒缓素，包括15个家族成员。在不同的组织中广泛表达,具有蛋白水解酶的活性。它特异性的在碳末端切割底物肽，可裂解激肽原释放具有活性的激肽，由激肽发挥对心血管系统及肾脏功能的调节作用。
组织KLK是一个大的基因家族，主要分布在肺、肾、血管、脑、肾上腺组织，为一种中等大小的糖蛋白。

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 gene is one of the fifteen kallikrein subfamily members located in a cluster on chromosome 19. Its protein product 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. Alternate splicing of this gene generates several transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008].