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[[Image:2g4o.jpg|left|200px]]


{{Structure
==anomalous substructure of 3-ISOPROPYLMALATE DEHYDROGENASE==
|PDB= 2g4o |SIZE=350|CAPTION= <scene name='initialview01'>2g4o</scene>, resolution 2.00&Aring;
<StructureSection load='2g4o' size='340' side='right'caption='[[2g4o]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
|SITE=
== Structural highlights ==
|LIGAND= <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>
<table><tr><td colspan='2'>[[2g4o]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2G4O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2G4O FirstGlance]. <br>
|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/3-isopropylmalate_dehydrogenase 3-isopropylmalate dehydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.85 1.1.1.85] </span>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
|GENE= leuB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1773 Mycobacterium tuberculosis])
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
|DOMAIN=
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2g4o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2g4o OCA], [https://pdbe.org/2g4o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2g4o RCSB], [https://www.ebi.ac.uk/pdbsum/2g4o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2g4o ProSAT]</span></td></tr>
|RELATEDENTRY=[[2g4h|2G4H]], [[2g4i|2G4I]], [[2g4j|2G4J]], [[2g4k|2G4K]], [[2g4l|2G4L]], [[2g4m|2G4M]], [[2g4n|2G4N]], [[2g4p|2G4P]], [[2g4q|2G4Q]], [[2g4r|2G4R]], [[2g4s|2G4S]], [[2g4t|2G4T]], [[2g4u|2G4U]], [[2g4v|2G4V]], [[2g4w|2G4W]], [[2g4x|2G4X]], [[2g4y|2G4Y]], [[2g4z|2G4Z]], [[2g51|2G51]], [[2g52|2G52]], [[2g55|2G55]]
</table>
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2g4o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2g4o OCA], [http://www.ebi.ac.uk/pdbsum/2g4o PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2g4o RCSB]</span>
== Function ==
}}
[https://www.uniprot.org/uniprot/LEU3_MYCTU LEU3_MYCTU] Catalyzes the oxidation of 3-carboxy-2-hydroxy-4-methylpentanoate (3-isopropylmalate) to 3-carboxy-4-methyl-2-oxopentanoate. The product decarboxylates to 4-methyl-2 oxopentanoate.[HAMAP-Rule:MF_01035]
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/g4/2g4o_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=2g4o ConSurf].
<div style="clear:both"></div>


'''anomalous substructure of 3-ISOPROPYLMALATE DEHYDROGENASE'''
==See Also==
 
*[[Isopropylmalate dehydrogenase|Isopropylmalate dehydrogenase]]
 
__TOC__
==Overview==
</StructureSection>
23 different crystal forms of 19 different biological macromolecules were examined with respect to their anomalously scattering substructures using diffraction data collected at a wavelength of 2.0 A (6.2 keV). In more than 90% of the cases the substructure was found to contain more than just the protein S atoms. The data presented suggest that chloride, sulfate, phosphate or metal ions from the buffer or even from the purification protocol are frequently bound to the protein molecule and that these ions are often overlooked, especially if they are not bound at full occupancy. Thus, in order to fully describe the macromolecule under study, it seems desirable that any structure determination be complemented with a long-wavelength data set.
[[Category: Large Structures]]
 
==About this Structure==
2G4O is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2G4O OCA].
 
==Reference==
On the routine use of soft X-rays in macromolecular crystallography. Part IV. Efficient determination of anomalous substructures in biomacromolecules using longer X-ray wavelengths., Mueller-Dieckmann C, Panjikar S, Schmidt A, Mueller S, Kuper J, Geerlof A, Wilmanns M, Singh RK, Tucker PA, Weiss MS, Acta Crystallogr D Biol Crystallogr. 2007 Mar;63(Pt 3):366-80. Epub 2007, Feb 21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17327674 17327674]
[[Category: 3-isopropylmalate dehydrogenase]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Single protein]]
[[Category: Mueller-Dieckmann C]]
[[Category: Mueller-Dieckmann, C.]]
[[Category: Weiss MS]]
[[Category: Weiss, M S.]]
[[Category: anomalous substructure of 3-isopropylmalate dehydrogenase]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:11:47 2008''

Latest revision as of 12:26, 14 February 2024

anomalous substructure of 3-ISOPROPYLMALATE DEHYDROGENASEanomalous substructure of 3-ISOPROPYLMALATE DEHYDROGENASE

Structural highlights

2g4o is a 4 chain structure with sequence from Mycobacterium tuberculosis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

LEU3_MYCTU Catalyzes the oxidation of 3-carboxy-2-hydroxy-4-methylpentanoate (3-isopropylmalate) to 3-carboxy-4-methyl-2-oxopentanoate. The product decarboxylates to 4-methyl-2 oxopentanoate.[HAMAP-Rule:MF_01035]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

2g4o, resolution 2.00Å

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