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1wm1

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[[Image:1wm1.jpg|left|200px]]
[[Image:1wm1.jpg|left|200px]]
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{{Structure
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|PDB= 1wm1 |SIZE=350|CAPTION= <scene name='initialview01'>1wm1</scene>, resolution 2.1&Aring;
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The line below this paragraph, containing "STRUCTURE_1wm1", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=PTB:(5-TERT-BUTYL-1,3,4-OXADIAZOL-2-YL)[(2R)-PYRROLIDIN-2-YL]METHANONE'>PTB</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Prolyl_aminopeptidase Prolyl aminopeptidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.11.5 3.4.11.5] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE=
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|DOMAIN=
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{{STRUCTURE_1wm1| PDB=1wm1 | SCENE= }}
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|RELATEDENTRY=[[1qtr|1QTR]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1wm1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wm1 OCA], [http://www.ebi.ac.uk/pdbsum/1wm1 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1wm1 RCSB]</span>
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}}
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'''Crystal Structure of Prolyl Aminopeptidase, Complex with Pro-TBODA'''
'''Crystal Structure of Prolyl Aminopeptidase, Complex with Pro-TBODA'''
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[[Category: Tozaka, T.]]
[[Category: Tozaka, T.]]
[[Category: Yoshimoto, T.]]
[[Category: Yoshimoto, T.]]
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[[Category: complex with inhibitor]]
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[[Category: Complex with inhibitor]]
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[[Category: proline iminopeptidase]]
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[[Category: Proline iminopeptidase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 13:51:37 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:38:03 2008''
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Revision as of 10:51, 3 May 2008

Image:1wm1.jpg

Template:STRUCTURE 1wm1

Crystal Structure of Prolyl Aminopeptidase, Complex with Pro-TBODA


Overview

Prolyl aminopeptidase from Serratia marcescens hydrolyzed x-beta-naphthylamides (x=prolyl, alanyl, sarcosinyl, L-alpha-aminobutylyl, and norvalyl), which suggested that the enzyme has a pocket for a five-member ring. Based on the substrate specificity, novel inhibitors of Pro, Ala, and Sar having 2-tert-butyl-[1,3,4]oxadiazole (TBODA) were synthesized. The K(i) value of Pro-TBODA, Ala-TBODA, and Sar-TBODA was 0.5 microM, 1.6 microM, and 12mM, respectively. The crystal structure of enzyme-Pro-TBODA complex was determined. Pro-TBODA was located at the active site. Four electrostatic interactions were located between the enzyme and the amino group of Pro inhibitors (Glu204:0E1-N:Inh, Glu204:0E2-N:Inh, Glu232:0E1-N:Inh, and Gly46:O-N:Inh), and the residue of the inhibitors was inserted into the hydrophobic pocket composed of Phe139, Leu141, Leu146, Tyr149, Tyr150, and Phe236. The roles of Phe139, Tyr149, and Phe236 in the hydrophobic pocket and Glu204 and Glu232 in the electrostatic interactions were confirmed by site-directed mutagenesis, which indicated that the molecular recognition of proline is achieved through four electrostatic interactions and an insertion in the hydrophobic pocket of the enzyme.

About this Structure

1WM1 is a Single protein structure of sequence from Serratia marcescens. Full crystallographic information is available from OCA.

Reference

Novel inhibitor for prolyl aminopeptidase from Serratia marcescens and studies on the mechanism of substrate recognition of the enzyme using the inhibitor., Inoue T, Ito K, Tozaka T, Hatakeyama S, Tanaka N, Nakamura KT, Yoshimoto T, Arch Biochem Biophys. 2003 Aug 15;416(2):147-54. PMID:12893291 Page seeded by OCA on Sat May 3 13:51:37 2008

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