Carboxypeptidase B2 Protein, Human, Recombinant (His)

Carboxypeptidase B2 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 47.4 kDa and the accession number is Q96IY4-1.

Carboxypeptidase B2 Protein, Human, Recombinant (His)

パッケージサイズ	在庫状況	単価(税別)
100 μg	約5 days	￥ 161,000

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説明	Carboxypeptidase B2 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 47.4 kDa and the accession number is Q96IY4-1.

Species	Human
Expression Host	HEK293 Cells
Tag	C-His
Accession Number	Q96IY4-1
別名	carboxypeptidase B2 (plasma), CPU, PCPB, TAFI
Construction	The Human CPB2 (NP_001863.2) extracellular domain (Met 1-Val 423) was expressed, fused with a polyhistidine tag at the C-terminus.
Protein Purity	> 97 % as determined by SDS-PAGE
分子量	47.4 kDa (predicted)

Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	Carboxypeptidase B2, also known as Carboxypeptidase U, Thrombin-activable fibrinolysis inhibitor, Plasma carboxypeptidase B, CPB2, is a secreted protein which belongs to the peptidase M14 family. Carboxypeptidases are enzymes that hydrolyze C-terminal peptide bonds. The carboxypeptidase family includes metallo-, serine, and cysteine carboxypeptidases. According to their substrate specificity, these enzymes are referred to as carboxypeptidase A (cleaving aliphatic residues) or carboxypeptidase B (cleaving basic amino residues). CPB2 is activated by thrombin and acts on carboxypeptidase B substrates. After thrombin activation, the mature protein downregulates fibrinolysis. CPB2 is synthesized by the liver and circulates in the plasma as a plasminogen-bound zymogen. When it is activated by proteolysis at residue Arg92 by the thrombin / thrombomodulin complex. CPB2 cleaves C-terminal arginine or lysine residues from biologically active peptides such as kinins or anaphylatoxins in the circulation thereby regulating their activities. CPB2 exhibits carboxypeptidase activity and activated CPB2 reduces fibrinolysis by removing the fibrin C-terminal residues that are important for the binding and activation of plasminogen.

参考文献

1. Eaton DL. et al.,1991, J Biol Chem. 266 (32): 21833-8. 2. Boffa MB. et al.,1999, Biochemistry. 38 (20): 6547-58. 3. Liu T. et al., 2005, J. Proteome Res. 4: 2070-80. 4. Valnickova Z. et al., 2006, Biochemistry. 45: 1525-35. 5. Chen R. et al., 2009, J. Proteome Res. 8: 651-61.

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Carboxypeptidase B2 Protein, Human, Recombinant (His)

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