1zpe

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[[Image:1zpe.gif|left|200px]]
 
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{{Structure
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==Arginase I covalently modified with butylamine at Q19C==
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|PDB= 1zpe |SIZE=350|CAPTION= <scene name='initialview01'>1zpe</scene>, resolution 1.70&Aring;
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<StructureSection load='1zpe' size='340' side='right'caption='[[1zpe]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=MN:MANGANESE (II) ION'>MN</scene>
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<table><tr><td colspan='2'>[[1zpe]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZPE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZPE FirstGlance]. <br>
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|ACTIVITY= [http://en.wikipedia.org/wiki/Arginase Arginase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.3.1 3.5.3.1]
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7&#8491;</td></tr>
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|GENE= Arg1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10116 Rattus norvegicus])
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BBC:3-[(4-AMINOBUTYL)SULFINYL]-2-IMINOPROPAN-1-OL'>BBC</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr>
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}}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1zpe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zpe OCA], [https://pdbe.org/1zpe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zpe RCSB], [https://www.ebi.ac.uk/pdbsum/1zpe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zpe ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/ARGI1_RAT ARGI1_RAT]
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zp/1zpe_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1zpe ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Rat liver arginase (arginase I) is potently inactivated by diethyl pyrocarbonate, with a second-order rate constant of 113M(-1)s(-1) for the inactivation process at pH 7.0, 25 degrees C. Partial protection from inactivation is provided by the product of the reaction, l-ornithine, while nearly complete protection is afforded by the inhibitor pair, l-ornithine and borate. The role of H141 has been probed by mutagenesis, chemical modulation, and X-ray diffraction. The hyper-reactivity of H141 towards diethyl pyrocarbonate can be explained by its proximity to E277. A proton shuttling role for H141 is supported by its conformational mobility observed among the known arginase structures. H141 is proposed to serve as an acid/base catalyst, deprotonating the metal-bridging water molecule to generate the metal-bridging hydroxide nucleophile, and by protonating the amino group of the product to facilitate its departure.
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'''Arginase I covalently modified with butylamine at Q19C'''
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Probing the role of the hyper-reactive histidine residue of arginase.,Colleluori DM, Reczkowski RS, Emig FA, Cama E, Cox JD, Scolnick LR, Compher K, Jude K, Han S, Viola RE, Christianson DW, Ash DE Arch Biochem Biophys. 2005 Dec 1;444(1):15-26. Epub 2005 Oct 13. PMID:16266687<ref>PMID:16266687</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 1zpe" style="background-color:#fffaf0;"></div>
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==Overview==
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==See Also==
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Rat liver arginase (arginase I) is potently inactivated by diethyl pyrocarbonate, with a second-order rate constant of 113M(-1)s(-1) for the inactivation process at pH 7.0, 25 degrees C. Partial protection from inactivation is provided by the product of the reaction, l-ornithine, while nearly complete protection is afforded by the inhibitor pair, l-ornithine and borate. The role of H141 has been probed by mutagenesis, chemical modulation, and X-ray diffraction. The hyper-reactivity of H141 towards diethyl pyrocarbonate can be explained by its proximity to E277. A proton shuttling role for H141 is supported by its conformational mobility observed among the known arginase structures. H141 is proposed to serve as an acid/base catalyst, deprotonating the metal-bridging water molecule to generate the metal-bridging hydroxide nucleophile, and by protonating the amino group of the product to facilitate its departure.
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*[[Arginase 3D structures|Arginase 3D structures]]
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== References ==
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==About this Structure==
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<references/>
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1ZPE is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZPE OCA].
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__TOC__
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</StructureSection>
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==Reference==
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[[Category: Large Structures]]
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Probing the role of the hyper-reactive histidine residue of arginase., Colleluori DM, Reczkowski RS, Emig FA, Cama E, Cox JD, Scolnick LR, Compher K, Jude K, Han S, Viola RE, Christianson DW, Ash DE, Arch Biochem Biophys. 2005 Dec 1;444(1):15-26. Epub 2005 Oct 13. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16266687 16266687]
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[[Category: Arginase]]
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[[Category: Rattus norvegicus]]
[[Category: Rattus norvegicus]]
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[[Category: Single protein]]
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[[Category: Ash DE]]
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[[Category: Ash, D E.]]
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[[Category: Cama E]]
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[[Category: Cama, E.]]
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[[Category: Christianson DW]]
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[[Category: Christianson, D W.]]
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[[Category: Colleluori DM]]
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[[Category: Colleluori, D M.]]
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[[Category: Compher K]]
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[[Category: Compher, K.]]
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[[Category: Cox JD]]
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[[Category: Cox, J D.]]
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[[Category: Emig FA]]
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[[Category: Emig, F A.]]
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[[Category: Han S]]
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[[Category: Han, S.]]
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[[Category: Jude K]]
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[[Category: Jude, K.]]
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[[Category: Reczkowski RS]]
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[[Category: Reczkowski, R S.]]
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[[Category: Scolnick LR]]
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[[Category: Scolnick, L R.]]
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[[Category: Viola RE]]
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[[Category: Viola, R E.]]
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[[Category: MN]]
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[[Category: chemically modified enzyme]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 15:38:18 2008''
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Current revision

Arginase I covalently modified with butylamine at Q19C

PDB ID 1zpe

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