CST, 55279S, Cathepsin B (D1C7Y) Rabbit Monoclonal Antibody (Alexa Fluor® 488 Conjugate)

Monoclonal Antibody for studying Cathepsin B. Validated for Immunofluorescence (Immunocytochemistry). Highly specific and rigorously validated in-house, Cathepsin B (D1C7Y) Rabbit Monoclonal Antibody (Alexa Fluor^® 488 Conjugate) (CST #55279) is ready to ship. Product Usage Information Immunofluorescence (Immunocytochemistry): 1:50 - 1:100 Storage Supplied in PBS (pH 7.2), less than 0.1% sodium azide and 2 mg/ml BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze. Protocol Available protocols: Immunofluorescence (Immunocytochemistry) Specificity / Sensitivity Cathepsin B (D1C7Y) Rabbit Monoclonal Antibody (Alexa Fluor Species Reactivity: Human, Mouse, Rat Source / Purification Monoclonal antibody is produced by immunizing animals with recombinant protein specific to the heavy chain subunit of human cathepsin B protein. Background Cathepsin B (CTSB), part of the papain family of proteases, is a widely expressed lysosomal cysteine endopeptidase (1,2). Cathepsin B is produced from a larger precursor form, pro-cathepsin B, which runs at approximately 44 kDa on SDS-PAGE, and is proteolytically processed and glycosylated to form a mature two-chain protein containing a heavy chain (running at 27 and 24 kDa) and a light chain (5 kDa). High levels of cathepsin B are found in macrophages and osteoclasts, as well as various types of cancer cells, including lung, colon, prostate, breast, and stomach. In addition, expression of cathepsin B has been associated with multiple sclerosis (3), rheumatoid arthritis (4), and pancreatitis (5). While generally localized to lysosomes, in cancer alterations can lead to its secretion (6). Its role in tumor progression is thought to involve promotion of basement membrane degradation, invasion and metastasis (7,8). Expression can correlate with poor prognosis for a variety of forms of cancer (9-13). This product detects a SARS-CoV-2-related target for research into the mechanisms of the Novel Coronavirus, which has caused the COVID-19 pandemic. Alternate Names amyloid precursor protein secretase; APP secretase; APPS; CATB; Cathepsin B; Cathepsin B heavy chain; Cathepsin B light chain; Cathepsin B1; CPSB; CTSB; cysteine protease; epididymis secretory sperm binding protein; RECEUP Specification REACTIVITY: H M R SENSITIVITY: Endogenous Source/Isotype: Rabbit IgG