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Carboxypeptidase B1 Protein, Mouse, Recombinant (His)

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Carboxypeptidase B1 Protein, Mouse, Recombinant (His)

Catalog No. TMPY-01422

Carboxypeptidase B1 Protein, Mouse, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 47.5 kDa and the accession number is B2RS76.

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Pack Size	Price	Availability	Quantity
50 μg	$600	7-10 days

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Biological Description

Biological Information	Measured by its ability to cleave a colorimetric peptide substrate, Hippuryl-Arg. The specific activity is >5,000 pmoles/min/μg.
Description	Carboxypeptidase B1 Protein, Mouse, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 47.5 kDa and the accession number is B2RS76.
Species	Mouse
Expression System	HEK293 Cells
Tag	C-His
Accession Number	B2RS76
Synonyms	carboxypeptidase B1 (tissue),1810063F02Rik,AI504870,0910001A18Rik,2210008M23Rik
Construction	The Mouse CPB1 (NP_083982.1) precursor (Met 1-Tyr 415) was expressed, with a C-terminal polyhistidine tag.
Protein Purity	> 94 % as determined by SDS-PAGE
Molecular Weight	47.5 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 20 mM MES, 150 mM NaCl, pH 6. 5. 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°C. For reconstituted protein solutions, 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 B1, also well known as pancreatic procarboxypeptidase B (PCPB), is a highly pancreas -specific protein (PASP), and has been identified previously as a serum marker for acute pancreatitis and pancreatic graft rejection. As the prototype for those human exopeptidases that cleave off basic C-terminal residues, CPB1 specifically cleaves the C-terminal Arg and Lys residues with a preference for Arg. The B1 and B2 forms of procarboxypeptidase B differ from each other mainly in isoelectric point.The deduced amino acid sequence of PCPB predicts a 416-amino acid preproenzyme consisting of a 15-aa signal peptide, a 95-aa activation peptide and a 37-aa mature chain. The secreted PCPB zymogen is converted to enzymatically active CPB1 by limited proteolysis by trypsin.