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1qu9

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(New page: 200px<br /><applet load="1qu9" size="450" color="white" frame="true" align="right" spinBox="true" caption="1qu9, resolution 1.2&Aring;" /> '''1.2 A CRYSTAL STRUCTU...)
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[[Image:1qu9.gif|left|200px]]<br /><applet load="1qu9" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1qu9, resolution 1.2&Aring;" />
 
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'''1.2 A CRYSTAL STRUCTURE OF YJGF GENE PRODUCT FROM E. COLI'''<br />
 
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==Overview==
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==1.2 A CRYSTAL STRUCTURE OF YJGF GENE PRODUCT FROM E. COLI==
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The YER057c/YIL051c/YjgF protein family is a set of 24 full-length, homologs, each approximately 130 residues in length, and each with no, known function or relationship to proteins of known structure. To, determine the function of this family, the structure of one member--the, YjgF protein from Escherichia coli--was solved and refined at a resolution, of 1.2 A. The YjgF molecule is a homotrimer with exact threefold symmetry., Its tertiary and quaternary structures are related to that of Bacillus, subtilis chorismate mutase, although their active sites are completely, different. The YjgF protein has an active site curiously similar to, protein tyrosine phosphatases, including a covalently modified cysteine, but it is unlikely to be functionally related. The lessons learned from, this attempt to deduce function from structure may be useful to future, projects in structural genomics.
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<StructureSection load='1qu9' size='340' side='right'caption='[[1qu9]], [[Resolution|resolution]] 1.20&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1qu9]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QU9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QU9 FirstGlance]. <br>
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1QU9 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1QU9 OCA].
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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]] 1.2&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CSP:S-PHOSPHOCYSTEINE'>CSP</scene></td></tr>
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==Reference==
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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=1qu9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qu9 OCA], [https://pdbe.org/1qu9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qu9 RCSB], [https://www.ebi.ac.uk/pdbsum/1qu9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qu9 ProSAT]</span></td></tr>
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A test case for structure-based functional assignment: the 1.2 A crystal structure of the yjgF gene product from Escherichia coli., Volz K, Protein Sci. 1999 Nov;8(11):2428-37. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10595546 10595546]
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RIDA_ECOLI RIDA_ECOLI] Accelerates the release of ammonia from reactive enamine/imine intermediates of the PLP-dependent threonine dehydratase (IlvA) in the low water environment of the cell. It catalyzes the deamination of enamine/imine intermediates to yield 2-ketobutyrate and ammonia. It is required for the detoxification of reactive intermediates of IlvA due to their highly nucleophilic abilities. Involved in the isoleucine biosynthesis (By similarity).
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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/qu/1qu9_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=1qu9 ConSurf].
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Volz, K.]]
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[[Category: Volz K]]
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[[Category: structural genomics]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 00:59:32 2007''
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1.2 A CRYSTAL STRUCTURE OF YJGF GENE PRODUCT FROM E. COLI

PDB ID 1qu9

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