1nff

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{{Seed}}
 
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[[Image:1nff.png|left|200px]]
 
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==Crystal structure of Rv2002 gene product from Mycobacterium tuberculosis==
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The line below this paragraph, containing "STRUCTURE_1nff", creates the "Structure Box" on the page.
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<StructureSection load='1nff' size='340' side='right'caption='[[1nff]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1nff]] is a 2 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=1NFF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NFF FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 1.8&#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=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene></td></tr>
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{{STRUCTURE_1nff| PDB=1nff | SCENE= }}
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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=1nff FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nff OCA], [https://pdbe.org/1nff PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nff RCSB], [https://www.ebi.ac.uk/pdbsum/1nff PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nff ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/HSD_MYCTU HSD_MYCTU]
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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/nf/1nff_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=1nff 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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One of the serious bottlenecks in structural genomics projects is overexpression of the target proteins in soluble form. We have applied the directed evolution technique and prepared soluble mutants of the Mycobacterium tuberculosis Rv2002 gene product, the wild type of which had been expressed as inclusion bodies in Escherichia coli. A triple mutant I6TV47MT69K (Rv2002-M3) was chosen for structural and functional characterizations. Enzymatic assays indicate that the Rv2002-M3 protein has a high catalytic activity as a NADH-dependent 3alpha, 20beta-hydroxysteroid dehydrogenase. We have determined the crystal structures of a binary complex with NAD(+) and a ternary complex with androsterone and NADH. The structure reveals that Asp-38 determines the cofactor specificity. The catalytic site includes the triad Ser-140Tyr-153Lys-157. Additionally, it has an unusual feature, Glu-142. Enzymatic assays of the E142A mutant of Rv2002-M3 indicate that Glu-142 reverses the effect of Lys-157 in influencing the pKa of Tyr-153. This study suggests that the Rv2002 gene product is a unique member of the SDR family and is likely to be involved in steroid metabolism in M. tuberculosis. Our work demonstrates the power of the directed evolution technique as a general way of overcoming the difficulties in overexpressing the target proteins in soluble form.
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===Crystal structure of Rv2002 gene product from Mycobacterium tuberculosis===
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Directed evolution approach to a structural genomics project: Rv2002 from Mycobacterium tuberculosis.,Yang JK, Park MS, Waldo GS, Suh SW Proc Natl Acad Sci U S A. 2003 Jan 21;100(2):455-60. Epub 2003 Jan 10. PMID:12524453<ref>PMID:12524453</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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The line below this paragraph, {{ABSTRACT_PUBMED_12524453}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 1nff" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 12524453 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_12524453}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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1NFF is a 2 chains structure of sequences 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=1NFF OCA].
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==Reference==
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<ref group="xtra">PMID:12524453</ref><references group="xtra"/>
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[[Category: Mycobacterium tuberculosis]]
[[Category: Mycobacterium tuberculosis]]
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[[Category: Park, M S.]]
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[[Category: Park MS]]
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[[Category: Suh, S W.]]
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[[Category: Suh SW]]
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[[Category: TBSGC, TB Structural Genomics Consortium.]]
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[[Category: Waldo GS]]
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[[Category: Waldo, G S.]]
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[[Category: Yang JK]]
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[[Category: Yang, J K.]]
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[[Category: Directed evolution]]
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[[Category: Gfp]]
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[[Category: Hydroxysteroid dehydrogenase]]
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[[Category: Protein structure initiative]]
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[[Category: Psi]]
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[[Category: Sdr]]
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[[Category: Structural genomic]]
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[[Category: Tb structural genomics consortium]]
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[[Category: Tbsgc]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 13:06:28 2009''
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Current revision

Crystal structure of Rv2002 gene product from Mycobacterium tuberculosis

PDB ID 1nff

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OCA

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