Anti-Cathepsin B (Capture/Detector)

CTSB(Cathepsin B) is also named as CPSB and belongs to the peptidase C1 family. It participates in intracellular degradation and turnover of proteins. Cathepsin B precursors found in human malignant ascites fluid do not possess mannose-rich carbohydrates suggesting that a defect in the post translational processing of carbohydrate moieties on tumor. Cathepsin B exists as both glycosylated and unglycosylated forms. In rat macrophages and hepatocytes pro- cathepsin B is 39 kDa (unglycosylated =35 kDa),whereas in human fibroblasts procathepsin B is 44.5-46kDa (unglycosylated=39kDa). It can be detected the 43 kDa form of pro-CTSB,31 kDa and 25 kDa mature forms in mouse brain by western blot. Protein function: Thiol protease which is believed to participate in intracellular degradation and turnover of proteins (PubMed:12220505). Cleaves matrix extracellular phosphoglycoprotein MEPE (PubMed:12220505). Involved in the solubilization of cross-linked TG/thyroglobulin in the thyroid follicle lumen. Has also been implicated in tumor invasion and metastasis (PubMed:3972105). [The UniProt Consortium]