1. Recombinant Proteins
  2. Enzymes & Regulators
  3. Carboxypeptidase
  4. Carboxypeptidase B
  5. Carboxypeptidase B2
  6. Carboxypeptidase B2/CPB2 Protein, Rat (HEK293, His)

Carboxypeptidase B2/CPB2 Protein, Rat (HEK293, His)

Cat. No.: HY-P75449
COA Handling Instructions

Carboxypeptidase B2 (CPB2) protein acts as an enzyme that cleaves C-terminal arginine or lysine residues from biologically active peptides, including kinins or anaphylatoxins circulating in the blood, thereby regulating their activity. Furthermore, CPB2 plays a key role in downregulating fibrinolysis by removing C-terminal lysine residues from fibrin that has been partially degraded by plasmin. Carboxypeptidase B2/CPB2 Protein, Rat (HEK293, His) is the recombinant rat-derived Carboxypeptidase B2/CPB2 protein, expressed by HEK293 , with C-His labeled tag.

For research use only. We do not sell to patients.

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5 μg $46 In-stock
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500 μg $950 In-stock
1 mg $1500 In-stock
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Top Publications Citing Use of Products
  • Biological Activity

  • Technical Parameters

  • Properties

  • Documentation

Description

Carboxypeptidase B2 (CPB2) protein acts as an enzyme that cleaves C-terminal arginine or lysine residues from biologically active peptides, including kinins or anaphylatoxins circulating in the blood, thereby regulating their activity. Furthermore, CPB2 plays a key role in downregulating fibrinolysis by removing C-terminal lysine residues from fibrin that has been partially degraded by plasmin. Carboxypeptidase B2/CPB2 Protein, Rat (HEK293, His) is the recombinant rat-derived Carboxypeptidase B2/CPB2 protein, expressed by HEK293 , with C-His labeled tag.

Background

CaCarboxypeptidase B2 (CPB2) plays a critical role in physiological regulation, particularly within the circulatory system. The enzyme exhibits specificity in cleaving C-terminal arginine or lysine residues from biologically active peptides, including kinins and anaphylatoxins, thereby finely tuning their activities and downstream signaling in the circulation. Additionally, CPB2 is instrumental in the down-regulation of fibrinolysis by selectively removing C-terminal lysine residues from fibrin that has undergone partial degradation by plasmin. This dual functionality underscores CPB2's pivotal role in maintaining the balance of peptide activities and coagulation processes, emphasizing its significance in orchestrating intricate regulatory mechanisms within the physiological context.

Biological Activity

Specific activity is determined by a kinetic assay using Hippuryl-L-Arginine as substrate. One unit equals one micromole of Hippuryl-L-Arginine hyrolyzed per minute. Specific activity is reported in Units per milligram. This experiment requires the use of 1 mM substrate and incubation at room temperature for 30 minutes. The specific activity is 14 U/mg.

Species

Rat

Source

HEK293

Tag

C-10*His

Accession

Q9EQV9 (F22-S422)

Gene ID
Molecular Construction
N-term
Cpb2 (F22-S422)
Accession # Q9EQV9
His
C-term
Synonyms
Carboxypeptidase B2; CPU; pCPB; TAFI; CPB2
AA Sequence

FQSGHVLSALPRTSRQVQLLQNLTTTYEVVLWQPVTAEFIEKKKEVHFFVNASDVNSVKAYLNASRIPFNVLMNNVEDLIQQQTSNDTVSPRASSSYYEQYHSLNEIYSWIEVITEQHPDMLQKIYIGSSYEKYPLYVLKVSGKEHRVKNAIWIDCGIHAREWISPAFCLWFIGYVTQFHGKENTYTRLLRHVDFYIMPVMNVDGYDYTWKKNRMWRKNRSVHMNNRCVGTDLNRNFASKHWCEKGASSFSCSETYCGLYPESEPEVKAVADFLRRNINHIKAYISMHSYSQQILFPYSYNRSKSKDHEELSLVASEAVRAIESINKNTRYTHGSGSESLYLAPGGSDDWIYDLGIKYSFTIELRDTGRYGFLLPERFIKPTCAEALAAVSKIAWHVIRNS

Molecular Weight

Approximately 55-75 kDa due to the glycosylation.

Purity
  • Greater than 95% as determined by reducing SDS-PAGE.
Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

Carboxypeptidase B2/CPB2 Protein, Rat (HEK293, His) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Carboxypeptidase B2/CPB2 Protein, Rat (HEK293, His)
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HY-P75449
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