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生物源
Porcine pancreas
等級
Proteomics Grade
形狀
lyophilized powder
比活性
≥125 units/mg protein
分子量
34,000 Da± 600
純化經由
affinity chromatography
成份
Protein, 40-70%
異物活動
carboxypeptidase A ≤1%
chymotrypsin ≤0.1%
trypsin ≤5%
儲存溫度
−20°C
InChI
1S/C31H38N4O7S/c1-20(32-26(36)15-16-27(37)38)28(39)33-21(2)30(41)35-17-9-14-25(35)29(40)34-24(18-22-10-5-3-6-11-22)31(42)43-19-23-12-7-4-8-13-23/h3-8,10-13,20-21,24-25H,9,14-19H2,1-2H3,(H,32,36)(H,33,39)(H,34,40)(H,37,38)
InChI 密鑰
TWURVFFNODFJBJ-UHFFFAOYSA-N
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應用
来自Sigma的酶已被用于开发均相时间分辨荧光（HTRF）检测法，以用于以小型化的高通量筛选形式测定羧肽酶B活性。它已被用于评估C-末端赖氨酸在人纤溶酶原结合至双歧杆菌过程中的影响。使用流式细胞术对用羧肽酶B（一种C-末端赖氨酸特异性内肽酶）处理的效果进行分析和检测。
羧肽酶B已被用于开发用于圈养和野生北极熊的非侵入性妊娠试验。羧肽酶B已被用于确定急性胰腺炎的新潜在生物标志物。
生化／生理作用
羧肽酶B是一种蛋白水解酶，能够快速水解肽键，从而从肽和蛋白质中释放某些羧基末端碱性氨基酸。其分子量为34,300±600 Da。其每摩尔含有一克不可透析的锌原子。金属螯合剂1,10-菲咯啉、8-羟基喹啉-5-磺酸、和2,2′-联吡啶可抑制该酶活性。
包裝
基于蛋白含量进行包装
單位定義
在pH7.65，25℃条件下，一个单位每分钟可水解1.0 μmole马尿酰-L-精氨酸。
外觀
含有HEPES缓冲盐、氯化锌和碳水化合物
準備報告
用蛋白酶抑制剂AEBSF进行处理，以消除丝氨酸蛋白酶活性。
分析報告
蛋白质由缩二脲进行确定。
訊號詞
Danger
危險分類
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
標靶器官
Respiratory system
儲存類別代碼
10 - Combustible liquids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
Eyeshields, Gloves
其他客户在看
Marc Ferrer et al.
Analytical biochemistry, 317(1), 94-98 (2003-05-06)
An epitope-unmasking, homogeneous time-resolved fluorescence (HTRF) assay has been developed for measuring carboxypeptidase B (CPB) activity in a miniaturized high-throughput screening format. The enzyme substrate (biotin-RYRGLMVGGVVR-OH) is cleaved by CPB at the C terminus, causing release of the C-terminal Arg
Andrew Lee et al.
Langmuir : the ACS journal of surfaces and colloids, 27(18), 11560-11574 (2011-08-13)
This article describes the use of capillary electrophoresis (CE) to examine the influence of different cations (C(+); C(+) = Na(+) and tetra-n-alkylammonium, NR(4)(+), where R = Me, Et, Pr, and Bu) on the rates of denaturation of bovine carbonic anhydrase
E Curry et al.
Theriogenology, 78(2), 308-314 (2012-04-28)
Currently, there is no method of accurately and non-invasively diagnosing pregnancy in polar bears. Specific proteins may exhibit altered profiles in the feces of pregnant bears, but predicting appropriate candidate proteins to investigate is speculative at best. The objective of
Lawrence L K Leung et al.
Advances in experimental medicine and biology, 632, 61-69 (2008-11-26)
Thrombin-activatable procarboxypeptidase B (proCPB or thrombin-activatable fibrinolysis inhibitor or TAFI) is a plasma procarboxypeptidase that is activated by the thrombin-thrombomodulin complex on the vascular endothelial surface. The activated CPB removes the newly exposed carboxyl terminal lysines in the partially digested
Saurabh Chatterjee et al.
Free radical biology & medicine, 46(4), 454-461 (2008-12-04)
Post-translational modification of proteins due to exposure to radicals and other reactive species are markers of metabolic and inflammatory oxidative stress such as sepsis. This study uses the nitrone spin-trap DMPO and a combination of immuno-spin trapping and mass spectrometry
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