Dipeptidyl Aminopeptidase

	Dipeptidyl Aminopeptidase Dipeptidyl peptidase is a type of enzyme classified under EC 3.4.14. Types include: * Cathepsin C, dipeptidyl peptidase-1 * Dipeptidyl-peptidase II * DPP3, dipeptidyl peptidase-3 * DPP4, Dipeptidyl peptidase-4 * DPP6, dipeptidyl peptidase-6 * DPP7, dipeptidyl peptidase-7 * DPP8, dipeptidyl peptidase-8 * DPP9, dipeptidyl peptidase-9 * DPP10 Inactive dipeptidyl peptidase 10 is a protein that in humans is encoded by the ''DPP10'' gene. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. Function This gene encodes a single-pass type II me ..., dipeptidyl peptidase-10 See also * Tripeptidyl peptidase References Proteases {{Hydrolase-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Cathepsin C Cathepsin C (CTSC) also known as dipeptidyl peptidase I (DPP-I) is a lysosomal exo-cysteine protease belonging to the peptidase C1 protein family, a subgroup of the cysteine cathepsins. In humans, it is encoded by the ''CTSC'' gene. Function Cathepsin C appears to be a central coordinator for activation of many serine proteases in immune/inflammatory cells. Cathepsin C catalyses excision of dipeptides from the N-terminus of protein and peptide substrates, except if (i) the amino group of the N-terminus is blocked, (ii) the site of cleavage is on either side of a proline residue, (iii) the N-terminal residue is lysine or arginine, or (iv) the structure of the peptide or protein prevents further digestion from the N-terminus. Structure The cDNAs encoding rat, human, murine, bovine, dog and two ''Schistosome'' cathepsin Cs have been cloned and sequenced and show that the enzyme is highly conserved. The human and rat cathepsin C cDNAs encode precursors (prepro-cathepsin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Dipeptidyl-peptidase II Dipeptidyl-peptidase II (, ''dipeptidyl aminopeptidase II'', ''dipeptidyl arylamidase II'', ''carboxytripeptidase'', ''dipeptidyl peptidase II'', ''DAP II'', ''dipeptidyl(amino)peptidase II'', ''dipeptidylarylamidase'') is an enzyme. This enzyme catalyses the following chemical reaction: : Release of an N-terminal dipeptide A dipeptide is an organic compound derived from two amino acids. The constituent amino acids can be the same or different. When different, two isomers of the dipeptide are possible, depending on the sequence. Several dipeptides are physiologicall ..., Xaa-Yaa!, preferentially when Yaa is Ala or Pro. Substrates are oligopeptides, preferentially tripeptides This lysosomal serine-type peptidase is maximally active at acidic pH. References External links * EC 3.4.14 {{Enzyme-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	DPP3 Dipeptidyl-peptidase 3 is an enzyme that in humans is encoded by the ''DPP3'' gene. This gene encodes a protein that is a member of the S9B family in clan SC of the serine proteases. This cytoplasmic protein binds a single zinc ion with its zinc-binding motif (HELLGH) and has post-proline dipeptidyl aminopeptidase activity, cleaving Xaa-Pro dipeptides from the N-termini of proteins. Increased activity of this protein is associated with endometrial and ovarian cancer Ovarian cancer is a cancerous tumor of an ovary. It may originate from the ovary itself or more commonly from communicating nearby structures such as fallopian tubes or the inner lining of the abdomen. The ovary is made up of three different c ...s. Alternate transcriptional splice variants have been characterized. References Further reading * * * * * * * * * * * * * * * * * * * External links * * {{protein-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Dipeptidyl Peptidase-4 Dipeptidyl peptidase-4 (DPP4), also known as adenosine deaminase complexing protein 2 or CD26 (cluster of differentiation 26) is a protein that, in humans, is encoded by the ''DPP4'' gene. DPP4 is related to FAP, DPP8, and DPP9. The enzyme was discovered in 1966 by Hopsu-Havu and Glenner, and as a result of various studies on chemism, was called dipeptidyl peptidase IV P IV Function The protein encoded by the ''DPP4'' gene is an enzyme expressed on the surface of most cell types and is associated with immune regulation, signal transduction, and apoptosis. It is a type II transmembrane glycoprotein, but a soluble form, which lacks the intracellular and transmembrane part, is present in blood plasma and various body fluids. DPP-4 is a serine exopeptidase that cleaves X-proline or X-alanine dipeptides from the N-terminus of polypeptides. Peptide bonds involving the cyclic amino acid proline cannot be cleaved by the majority of proteases and an N-terminal X-proline "shields" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	DPP6 Dipeptidyl aminopeptidase-like protein 6 is a protein that in humans is encoded by the ''DPP6'' gene. This gene encodes a single-pass type II membrane protein that is a member of the S9B family in clan SC of the serine proteases. This protein has no detectable protease activity, most likely due to the absence of the conserved serine residue normally present in the catalytic domain of serine proteases. However, it does bind specific voltage-gated potassium channels and alters their expression and biophysical properties. Alternate transcriptional splice variants, encoding different isoforms A protein isoform, or "protein variant", is a member of a set of highly similar proteins that originate from a single gene or gene family and are the result of genetic differences. While many perform the same or similar biological roles, some isof ..., have been characterized. References Further reading * * * * * * * * * * * * * * * * {{gene-7-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	DPP7 Dipeptidyl-peptidase 2 is an enzyme that in humans is encoded by the ''DPP7'' gene. The protein encoded by this gene is a post-proline cleaving aminopeptidase expressed in quiescent lymphocytes. The resting lymphocytes are maintained through suppression of apoptosis, a state which is disrupted by inhibition of this novel serine protease. The enzyme has strong sequence homology Sequence homology is the biological homology between DNA, RNA, or protein sequences, defined in terms of shared ancestry in the evolutionary history of life. Two segments of DNA can have shared ancestry because of three phenomena: either a spe ... with prolyl carboxypeptidase and is active at both acidic and neutral pH. References Further reading * * * * * * * * * * * * {{gene-9-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	DPP8 Dipeptidyl peptidase 8 is an enzyme that in humans is encoded by the ''DPP8'' gene. This gene encodes a member of the peptidase S9B family, a small family of dipeptidyl peptidases that are able to cleave peptide substrates at a prolyl bond. The encoded protein shares similarity with Dipeptidyl peptidase-4 in that it is ubiquitously expressed, and hydrolyzes the same substrates. These similarities suggest that, like dipeptidyl peptidase IV, this protein may play a role in T-cell activation and immune function. Alternatively spliced transcript variants encoding different isoforms have been described. A relatively specific inhibitor of DPP8 and DPP9, Val-boroPro -, leads to increased activation of the inflammasome though both NLRBP1 and CARD8 and can trigger pyroptosis Pyroptosis is a highly inflammatory form of Lysis, lytic programmed cell death that occurs most frequently upon infection with intracellular pathogens and is likely to form part of the antimicrobial response. This proces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	DPP9 Dipeptidyl peptidase 9 is an enzyme that in humans is encoded by the ''DPP9'' gene. This gene encodes a protein that is a member of the S9B family in clan SC of the serine proteases. The protein has been shown to have post-proline dipeptidyl aminopeptidase activity, cleaving Xaa-Pro dipeptides from the N-termini of proteins. Although the activity of this protein is similar to that of dipeptidyl peptidase 4 (DPP4), it does not appear to be membrane bound. In general, dipeptidyl peptidases appear to be involved in the regulation of the activity of their substrates and have been linked to a variety of diseases including type 2 diabetes, obesity and cancer. Several transcript variants of this gene have been described but not fully characterized. More specifically, DPP9 interacts with the NLRP1 protein and affects the level of activation of the NLPR1 i nflammasome. This function involves binding to a complex of full length NLRP1 and a proinflammatory fragment of NLRP1 after activation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	DPP10 Inactive dipeptidyl peptidase 10 is a protein that in humans is encoded by the ''DPP10'' gene. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. Function This gene encodes a single-pass type II membrane protein that is a member of the S9B family in clan SC of the serine proteases. This protein has no detectable protease activity, most likely due to the absence of the conserved serine residue normally present in the catalytic domain of serine proteases. However, it does bind specific voltage-gated potassium channels and alters their expression and biophysical properties. Clinical significance Mutations in this gene have been associated with asthma and autism spectrum disorders The autism spectrum, often referred to as just autism or in the context of a professional diagnosis autism spectrum disorder (ASD) or autism spectrum condition (ASC), is a neurodevelopmental disorder, neurodevelopmental condition (or conditions) .... R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Tripeptidyl Peptidase A tripeptidyl peptidase is a type of enzyme. Types include: * Tripeptidyl peptidase I * Tripeptidyl peptidase II See also * Dipeptidyl peptidase External links * Proteases {{enzyme-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]