| 别名 | Cathepsin B |
| 基因名称 | Endogenous |
| 蛋白名称 | CTSB CPSB |
| 推荐应用 | |
| 反应物种 | Cathepsin B |
| 存储缓冲液 | IHC 1:200-1:1000;WB 1:2000-1:10000;IF 1:200-1:1000;ELISA 1:5000-1:20000;IP 1:50-1:200; |
| Human Gene Link | CTSB;CPSB;Cathepsin B;APP secretase;APPS;Cathepsin B1;[Cleaved into: Cathepsin B light chain;Cathepsin B heavy chain] |
| Human Swissprot No. | 1508 |
| Mouse Gene ID | P07858 |
| Mouse Swissprot No. | 13030 |
| Rat Swissprot No. | P00787 |
| 特异性 | Monoclonal |
| 稀释度 | Unmodified |
| 参考分子量 | 38kD |
| 预测分子量 | WB,IHC,IF,IP,ELISA |
| 运输及保存条件 | Protein A |
| 宿主 | 38kD |
| 同种型 | Rabbit |
| 背景介绍 | This gene encodes a member of the C1 family of peptidases. Alternative splicing of this gene results in multiple transcript variants. At least one of these variants encodes a preproprotein that is proteolytically processed to generate multiple protein products. These products include the cathepsin B light and heavy chains, which can dimerize to form the double chain form of the enzyme. This enzyme is a lysosomal cysteine protease with both endopeptidase and exopeptidase activity that may play a role in protein turnover. It is also known as amyloid precursor protein secretase and is involved in the proteolytic processing of amyloid precursor protein (APP). Incomplete proteolytic processing of APP has been suggested to be a causative factor in Alzheimer's disease, the most common cause of dementia. Overexpression of the encoded protein has been associated with esophageal adenocarcinoma and other tumors. |
| 细胞定位 | Lysosome . Melanosome . Secreted, extracellular space . Apical cell membrane ; Peripheral membrane protein ; Extracellular side . Identified by mass spectrometry in melanosome fractions from stage I to stage IV (PubMed:17081065). Localizes to the lumen of thyroid follicles and to the apical membrane of thyroid epithelial cells (By similarity). . |
| 功能 | Catalytic activity:Hydrolysis of proteins with broad specificity for peptide bonds. Preferentially cleaves -Arg-Arg-|-Xaa bonds in small molecule substrates (thus differing from cathepsin L). In addition to being an endopeptidase, shows peptidyl-dipeptidase activity, liberating C-terminal dipeptides.,Function:Thiol protease which is believed to participate in intracellular degradation and turnover of proteins. Has also been implicated in tumor invasion and metastasis.,similarity:Belongs to the peptidase C1 family.,subcellular location:Identified by mass spectrometry in melanosome fractions from stage I to stage IV.,subunit:Dimer of a heavy chain and a light chain cross-linked by a disulfide bond., |
| 纯化 | PBS, 50% glycerol, 0.05% Proclin 300, 0.05%BSA |
| Clonality | -15°C to -25°C/1 year(Do not lower than -25°C) |
| 修饰类型 | IgG,Kappa |
| 细胞定位 | Lysosome . Melanosome . Secreted, extracellular space . Apical cell membrane ; Peripheral membrane protein ; Extracellular side . Identified by mass spectrometry in melanosome fractions from stage I to stage IV (PubMed:17081065). Localizes to the lumen of thyroid follicles and to the apical membrane of thyroid epithelial cells (By similarity). . |
| 组织表达 | Expressed in the stratum spinosum of the epidermis. Weak expression is detected in the stratum granulosum. |
| 研究领域 | >>Autophagy - animal;>>Lysosome;>>Apoptosis;>>Antigen processing and presentation;>>NOD-like receptor signaling pathway;>>Renin secretion |
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