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Some, but not all, carboxypeptidases are initially produced in an inactive form; this precursor form is referred to as a procarboxypeptidase. In the case of pancreatic carboxypeptidase A, the inactive zymogen form - pro-carboxypeptidase A - is converted to its active form - carboxypeptidase A - by the enzyme trypsin. This mechanism ensures that ...
Carboxypeptidase A2 is an enzyme that in humans is encoded by the CPA2 gene. [5] [6] [7]Three different forms of human pancreatic procarboxypeptidase A have been isolated. The A1 and A2 forms are monomeric proteins with different biochemical properties.
There are two proposed mechanisms for the catalytic function of carboxypeptidase A. The first is a nucleophilic pathway involving a covalent acyl enzyme intermediate containing active site base Glu-270. Evidence for this anhydride intermediate is mixed; Suh and colleagues isolated what is assumed to by the acyl intermediate.
CPA3 has a pH optimum in the neutral to basic range. CPA3 functions together with endopeptidases secreted from mast cells such as chymases and tryptases to degrade proteins and peptides, including the apolipoprotein B component of LDL particles and angiotensin I. [9] [10] Upon mast cell activation and degranulation, CPA3, the chymases, and tryptases are released in complexes with heparin ...
12876 Ensembl ENSG00000109472 ENSMUSG00000037852 UniProt P16870 Q00493 RefSeq (mRNA) NM_001873 NM_013494 RefSeq (protein) NP_001864 NP_038522 Location (UCSC) Chr 4: 165.36 – 165.5 Mb Chr 8: 65.05 – 65.15 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Carboxypeptidase E (CPE), also known as carboxypeptidase H (CPH) and enkephalin convertase, is an enzyme that in humans is encoded ...
1361 56373 Ensembl ENSG00000080618 ENSMUSG00000021999 UniProt Q96IY4 Q9JHH6 RefSeq (mRNA) NM_016413 NM_001278541 NM_001872 NM_019775 RefSeq (protein) NP_001265470 NP_001863 NP_062749 Location (UCSC) Chr 13: 46.05 – 46.11 Mb Chr 14: 75.48 – 75.52 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Carboxypeptidase B2 (CPB2), also known as carboxypeptidase U (CPU), plasma ...
Pancreatic juice is a liquid secreted by the pancreas, [1] which contains a number of digestive enzymes, including trypsinogen, chymotrypsinogen, elastase, carboxypeptidase, pancreatic lipase, nucleases and amylase.
71791 Ensembl n/a ENSMUSG00000039070 UniProt Q9UI42 Q6P8K8 RefSeq (mRNA) NM_016352 NM_001163446 NM_027926 RefSeq (protein) NP_001156918 NP_057436 NP_082202 Location (UCSC) n/a Chr 6: 30.57 – 30.59 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Carboxypeptidase A4 is an enzyme that in humans is encoded by the CPA4 gene. This gene is a member of the carboxypeptidase A/B subfamily ...