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Endopeptidase

Endothelin. The endothelin (ET) peptide family (50) comprises thiee peptides ET-1 (133), ET-2 (134), and ET-3 (135). ET-1, the most abundant, is a 21-amino acid peptide. A 203-amino acid peptide piecuisoi, piepioET, is cleaved after translation by endopeptidases to form a 38-amino acid proET which is converted to active ET by a putative endothelin-converting enzyme (ECE). ET-3 differs from ET-1 and ET-2 by sis amino acids. [Pg.542]

D,D-endopeptidase acting on maturing peptidoglycan D, D - c arb o xyp ep tidase transpeptidation is absent none apparent... [Pg.30]

Table 4. Neural Endopeptidase (Atrial Peptidase) Inhibitors... Table 4. Neural Endopeptidase (Atrial Peptidase) Inhibitors...
Proteolytic enzymes - hydrolyse proteins selectively, either on terminal groups (exopeptidases) or internal linkages (endopeptidases), eg... [Pg.12]

Cysteine endopeptidases Clan CD Family Cl 4 ( http //merops.sanger.ac.uk/)... [Pg.328]

Because renal vasodilatation and hyperfiltration are often associated with a natriuretic response, a number of activators or inhibitors of endogenous vasoactive systems can cause increased NaCl excretion, and some of these may be developed into compounds of clinical interest in special situations. Such agents include natriuretic pqDtides most notably B-type natriuretic peptide (nesiritide), neutral endopeptidase (NEP) inhibitors (thiorphan, phosphoramidon), mixed NEP and ACE inhibitors (omapatrilat), guanylin and uroguanylin, kinins, prostaglandins of the E series, adrenomedullin, relaxin, prolactin, and others. [Pg.431]

A peptidase that can cleave peptide bonds within a protein or peptide. Endopeptidases are classified in Enzyme Nomenclature according to catalytic type and are included in sub-subclasses 3.4.21-3.4.24. [Pg.469]

ECEs are metalloproteinases that are homologous to the neutral endopeptidase (NEP, E-24.11, neprilysin) unlike NEP, however, they form disulfide-bonded homodimers. In man, with ECE-1 and ECE-2, two isoforms are known, which are encoded by two separate genes. For ECE-1 four different variants have been identified (ECE-1 a-d), which are generated by the use of alternative promoters (Table 2). The ECE-1 isoforms only differ in their N-terminal amino acid sequence. For ECE-2, a single gene product has been described in... [Pg.471]

AHF acute heart failure, CHF chronic heart failure, CRF chronic renal failure, NEP neutral endopeptidase, ECE endothelin converting enzyme, PAH pulmonary arterial hypertension. [Pg.476]

ET-1 from big-ET-1 by other proteases such as neutral endopeptidase or other currently unidentified proteases. Therefore, dual inhibition of ECE and NEP might inhibit ET-l generation more efficiently, than that seen for selective ECE inhibitors. However, dual inhibiton of ECE and NEP could also increase the risk for the development of AD, as both enzyme classes are involved in the degradation of A 3 peptide. [Pg.476]

KELL blood group antigen is a plasma membrane protein isolated from red cells homologous to zinc-binding glycoproteins with neutral endopeptidase activity. [Pg.672]

Neutral endopeptidase (NEP, nephrilysin) is an enzyme that preferentially catalyzes cleavage at the amino group of hydrophobic residues of the B-chain of insulin... [Pg.845]

Gener ally, a family of peptidases contains either exopeptidases or endopeptidases, but there are exceptions. Family Cl contains not only endopeptidases such as cathepsin L, but also the aminopeptidase bleomycin hydrolase. Some members of this family can act as exopeptidases as well as endopeptidases. For example, cathepsin B also acts as a peptidyl-dipeptidase, and... [Pg.882]


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