2aat

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[[Image:2aat.png|left|200px]]
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==2.8-ANGSTROMS-RESOLUTION CRYSTAL STRUCTURE OF AN ACTIVE-SITE MUTANT OF ASPARTATE AMINOTRANSFERASE FROM ESCHERICHIA COLI==
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<StructureSection load='2aat' size='340' side='right' caption='[[2aat]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2aat]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AAT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2AAT FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PMP:4-DEOXY-4-AMINOPYRIDOXAL-5-PHOSPHATE'>PMP</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><br>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Aspartate_transaminase Aspartate transaminase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.6.1.1 2.6.1.1] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2aat FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2aat OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2aat RCSB], [http://www.ebi.ac.uk/pdbsum/2aat PDBsum]</span></td></tr>
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<table>
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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/aa/2aat_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/chain_selection.php?pdb_ID=2ata 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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The three-dimensional structure of a mutant of the aspartate aminotransferase from Escherichia coli, in which the active-site lysine has been substituted by alanine (K258A), has been determined at 2.8-A resolution by X-ray diffraction. The mutant enzyme contains pyridoxamine phosphate as cofactor. The structure is compared to that of the mitochondrial aspartate aminotransferase. The most striking differences, aside from the absence of the lysine side chain, occur in the positions of the pyridoxamine group and of tryptophan 140.
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{{STRUCTURE_2aat| PDB=2aat | SCENE= }}
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2.8-A-resolution crystal structure of an active-site mutant of aspartate aminotransferase from Escherichia coli.,Smith DL, Almo SC, Toney MD, Ringe D Biochemistry. 1989 Oct 3;28(20):8161-7. PMID:2513875<ref>PMID:2513875</ref>
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===2.8-ANGSTROMS-RESOLUTION CRYSTAL STRUCTURE OF AN ACTIVE-SITE MUTANT OF ASPARTATE AMINOTRANSFERASE FROM ESCHERICHIA COLI===
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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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{{ABSTRACT_PUBMED_2513875}}
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==About this Structure==
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[[2aat]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AAT OCA].
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==See Also==
==See Also==
*[[Aspartate Aminotransferase|Aspartate Aminotransferase]]
*[[Aspartate Aminotransferase|Aspartate Aminotransferase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:002513875</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Aspartate transaminase]]
[[Category: Aspartate transaminase]]
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]

Revision as of 05:10, 29 September 2014

2.8-ANGSTROMS-RESOLUTION CRYSTAL STRUCTURE OF AN ACTIVE-SITE MUTANT OF ASPARTATE AMINOTRANSFERASE FROM ESCHERICHIA COLI

2aat, resolution 2.80Å

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