4gj8
Crystal structure of renin in complex with PKF909-724 (compound 3)
Structural highlights
DiseaseRENI_HUMAN Defects in REN are a cause of renal tubular dysgenesis (RTD) [MIM:267430. RTD is an autosomal recessive severe disorder of renal tubular development characterized by persistent fetal anuria and perinatal death, probably due to pulmonary hypoplasia from early-onset oligohydramnios (the Potter phenotype).[1] Defects in REN are the cause of familial juvenile hyperuricemic nephropathy type 2 (HNFJ2) [MIM:613092. It is a renal disease characterized by juvenile onset of hyperuricemia, slowly progressive renal failure and anemia.[2] FunctionRENI_HUMAN Renin is a highly specific endopeptidase, whose only known function is to generate angiotensin I from angiotensinogen in the plasma, initiating a cascade of reactions that produce an elevation of blood pressure and increased sodium retention by the kidney. Publication Abstract from PubMedA small library of fragments comprising putative recognition motifs for the catalytic dyad of aspartic proteases was generated by in silico similarity searches within the corporate compound deck based on rh-renin active site docking and scoring filters. Subsequent screening by NMR identified the low-affinity hits 3 and 4 as competitive active site binders, which could be shown by X-ray crystallography to bind to the hydrophobic S3-S1 pocket of rh-renin. As part of a parallel multiple hit-finding approach, the 3,5-disubstituted piperidine (rac)-5 was discovered by HTS using a enzymatic assay. X-ray crystallography demonstrated the eutomer (3S,5R)-5 to be a peptidomimetic inhibitor binding to a nonsubstrate topography of the rh-renin prime site. The design of the potent and selective (3S,5R)-12 bearing a P3sp-tethered tricyclic P3-P1 pharmacophore derived from 3 is described. (3S,5R)-12 showed oral bioavailability in rats and demonstrated blood pressure lowering activity in the double-transgenic rat model. A Novel Class of Oral Direct Renin Inhibitors: Highly Potent 3,5-Disubstituted Piperidines bearing a Tricyclic P3-P1 Pharmacophore.,Ostermann N, Ruedisser S, Ehrhardt C, Breitenstein W, Marzinzik AL, Jacoby E, Vangrevelinghe E, Ottl J, Klumpp M, Hartwieg C, Cumin F, Hassiepen U, Trappe J, Sedrani RC, Geisse S, Gerhartz B, Richert P, Francotte E, Wagner T, Kromer M, Kosaka T, Webb RL, Rigel DF, Maibaum JK, Baeschlin DK J Med Chem. 2013 Jan 29. PMID:23360239[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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