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Trypsin is an enzyme in the first section of the small intestine that starts the digestion of protein molecules by cutting long chains of amino acids into smaller pieces. It is a serine protease from the PA clan superfamily, found in the digestive system of many vertebrates, where it hydrolyzes proteins.
Crystal structure of Trypsin, a typical serine protease.. Serine proteases (or serine endopeptidases) are enzymes that cleave peptide bonds in proteins. Serine serves as the nucleophilic amino acid at the (enzyme's) active site. [1]
The early crystal structures included chymotrypsin (PDB file 2CHA), [17] chymotrypsinogen (PDB file 1CHG), [18] trypsin (PDB file 1PTN), [19] and elastase (PDB file 1EST). [20] They also were the first protein structures that showed two near-identical domains, presumably related by gene duplication. One reason for their wide use as textbook and ...
The crystal structures of soybean trypsin inhibitor (STI), trypsin inhibitor DE-3 from the coral tree Erythrina afra (ETI) [1] and the bifunctional proteinase K/alpha-amylase inhibitor from wheat (PK13) have been solved, showing them to share the same beta trefoil fold structure as those of interleukin 1 and heparin-binding growth factors. [5]
22072 Ensembl ENSG00000282049 ENSG00000275896 ENSMUSG00000057163 UniProt P07478 P07146 RefSeq (mRNA) NM_001303414 NM_002770 NM_009430 RefSeq (protein) NP_001290343 NP_002761 NP_033456 Location (UCSC) Chr 7: 142.76 – 142.77 Mb Chr 6: 41.5 – 41.5 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Protease, serine, 2 (trypsin 2) is a protein that in humans is encoded by the PRSS2 gene ...
436522 Ensembl ENSG00000274247 ENSG00000204983 ENSMUSG00000071521 UniProt P07477 Q792Z1 RefSeq (mRNA) NM_002769 NM_001038996 RefSeq (protein) NP_002760 NP_001034085 Location (UCSC) Chr 7: 142.75 – 142.75 Mb Chr 6: 41.33 – 41.33 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Trypsin-1, also known as cationic trypsinogen, is a protein that in humans is encoded by the PRSS1 gene ...
Enteropeptidase (also called enterokinase) is an enzyme produced by cells of the duodenum and is involved in digestion in humans and other animals. Enteropeptidase converts trypsinogen (a zymogen) into its active form trypsin, resulting in the subsequent activation of pancreatic digestive enzymes.
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