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Pepsin / ˈ p ɛ p s ɪ n / is an endopeptidase that breaks down proteins into smaller peptides and amino acids. It is one of the main digestive enzymes in the digestive systems of humans and many other animals, where it helps digest the proteins in food. Pepsin is an aspartic protease, using a catalytic aspartate in its active site. [2]
An antibody digested by papain yields three fragments, two Fab fragments and one Fc fragment An antibody digested by pepsin yields two fragments: a F(ab') 2 fragment and a pFc' fragment The fragment crystallizable region ( Fc region ) is the tail region of an antibody that interacts with cell surface receptors called Fc receptors and some ...
The neonatal fragment crystallizable (Fc) receptor (also FcRn, IgG receptor FcRn large subunit p51, or Brambell receptor) is a protein that in humans is encoded by the FCGRT gene. [ 1 ] [ 2 ] [ 3 ] It is an IgG Fc receptor which is similar in structure to the MHC class I molecule and also associates with beta-2-microglobulin .
6752 20606 Ensembl ENSG00000180616 ENSMUSG00000047904 UniProt P30874 P30875 RefSeq (mRNA) NM_001050 NM_001042606 NM_009217 RefSeq (protein) NP_001041 NP_001036071 NP_033243 Location (UCSC) Chr 17: 73.17 – 73.18 Mb Chr 11: 113.51 – 113.52 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Somatostatin receptor type 2 is a protein that in humans is encoded by the SSTR2 gene. The SSTR2 ...
A prime example of this is pepsin, which is secreted in the stomach by chief cells. Pepsin in its secreted form is inactive . However, once it reaches the gastric lumen it becomes activated into pepsin by the high H+ concentration, becoming an enzyme vital to digestion. The release of the enzymes is regulated by neural, hormonal, or paracrine ...
The gastric hydrogen potassium ATPase or H + /K + ATPase is the proton pump of the stomach.It exchanges potassium from the intestinal lumen with cytoplasmic hydronium [2] and is the enzyme primarily responsible for the acidification of the stomach contents and the activation of the digestive enzyme pepsin [3] (see gastric acid).
The muscarinic acetylcholine receptor M 1, also known as the cholinergic receptor, muscarinic 1, is a muscarinic receptor that in humans is encoded by the CHRM1 gene. [5] It is localized to 11q13. [5] This receptor is found mediating slow EPSP at the ganglion in the postganglionic nerve, [6] is common in exocrine glands and in the CNS. [7] [8]
Secretin and its receptor are found in discrete nuclei of the hypothalamus, including the paraventricular nucleus and the arcuate nucleus, which are the primary brain sites for regulating body energy homeostasis. It was found that both central and peripheral injection of Sct reduce food intake in mouse, indicating an anorectic role of the peptide.