生物来源
enzyme from bovine pancreas
质量水平
表单
ammonium sulfate suspension
比活
≥6 units/mL packed gel, 25 °C
分子量
~35,250
基质
beaded agarose
储存温度
2-8°C
一般描述
Carboxypeptidase A-agarose product is prepared by the immobilization of carboxypeptidase A, originally isolated from the bovine pancreas, to activated 4% crosslinked beaded agarose.
生化/生理作用
Carboxypeptidase as isolated from bovine pancreas glands is a metalloenzyme that contains 1 g atom of zinc per mole of protein. It catalyzes the hydrolysis of the carboxyl-terminal peptide bond in peptides and proteins. It is primarily specific to aromatic and hydrophobic side chains such as phenylalanine, tryptophan or leucine. The enzyme also exhibits esterase activity. It is inhibited by β-phenylpropionate and indole acetate.
Carboxypeptidase A is attached covalently to agarose or aldehyde and is effective for immobilization studies.
外形
Suspension in 2.0 M (NH4)2SO4, pH 7
其他说明
One unit will hydrolyze 1.0 μmole of hippuryl-L-phenylalanine per min at pH 7.5 at 25 °C.
警示用语:
Danger
危险分类
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
储存分类代码
10 - Combustible liquids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
新产品
此项目有
Stabilization-immobilization of carboxypeptidase A to aldehyde-agarose gels: A practical example in the hydrolysis of casein
Pedroche J, et al.
Enzyme and Microbial Technology, 711-718 null
Deleting Mcl-1 in mast cells: getting 2 birds with 1 stone.
Booki Min
Blood, 118(26), 6729-6730 (2011-12-24)
Brian P Austin et al.
Protein expression and purification, 82(1), 116-124 (2011-12-27)
The carboxypeptidase A enzyme from Metarhizium anisopliae (MeCPA) has broader specificity than the mammalian A-type carboxypeptidases, making it a more useful reagent for the removal of short affinity tags and disordered residues from the C-termini of recombinant proteins. When secreted
Thorsten B Feyerabend et al.
Immunity, 35(5), 832-844 (2011-11-22)
Immunological functions of mast cells remain poorly understood. Studies in Kit mutant mice suggest key roles for mast cells in certain antibody- and T cell-mediated autoimmune diseases. However, Kit mutations affect multiple cell types of both immune and nonimmune origin.
Beat Amrein et al.
Metallomics : integrated biometal science, 4(4), 379-388 (2012-03-07)
Among natural metalloenzymes, the facial two-histidines one-carboxylate binding motif (FTM) is a widely represented first coordination sphere motif present in the active site of a variety of metalloenzymes. A PDB search revealed a total of 1685 structures bearing such FTMs
实验方案
Carboxypeptidase A activity measured via continuous spectrophotometric rate determination assay with hippuryl-L-phenylalanine substrate.
在测定羧肽酶A活性时,使用马尿酸-L-苯丙氨酸在254nm处进行连续分光光度法测定。羧肽酶A水解C末端残基上的肽键。
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