1npy

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[[Image:1npy.gif|left|200px]]
 
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{{Structure
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==Structure of shikimate 5-dehydrogenase-like protein HI0607==
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|PDB= 1npy |SIZE=350|CAPTION= <scene name='initialview01'>1npy</scene>, resolution 1.75&Aring;
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<StructureSection load='1npy' size='340' side='right'caption='[[1npy]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>
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<table><tr><td colspan='2'>[[1npy]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Haemophilus_influenzae Haemophilus influenzae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NPY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NPY FirstGlance]. <br>
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|ACTIVITY=
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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]] 1.75&#8491;</td></tr>
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|GENE= HI0607 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=727 Haemophilus influenzae])
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene></td></tr>
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|DOMAIN=<span class='plainlinks'>[http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=pfam08501 Shikimate_dh_N], [http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=PRK12550 PRK12550], [http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=pfam01488 Shikimate_DH]</span>
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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=1npy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1npy OCA], [https://pdbe.org/1npy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1npy RCSB], [https://www.ebi.ac.uk/pdbsum/1npy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1npy ProSAT], [https://www.topsan.org/Proteins/MCSG/1npy TOPSAN]</span></td></tr>
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|RELATEDENTRY=
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1npy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1npy OCA], [http://www.ebi.ac.uk/pdbsum/1npy PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1npy RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/SHDHL_HAEIN SHDHL_HAEIN] In vitro, is able to catalyze the NADP(+)-dependent oxidation of shikimate to 3-dehydroshikimate. However, has much lower activity than classical shikimate dehydrogenases AroE, indicating that shikimate may not be the biological substrate. Cannot utilize NAD(+) instead of NADP(+). Is not able to catalyze the oxidation of quinate.<ref>PMID:15735308</ref>
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== Evolutionary Conservation ==
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'''Structure of shikimate 5-dehydrogenase-like protein HI0607'''
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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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==Overview==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/np/1npy_consurf.spt"</scriptWhenChecked>
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To date two classes of shikimate dehydrogenases have been identified and characterized, YdiB and AroE. YdiB is a bifunctional enzyme that catalyzes the reversible reductions of dehydroquinate to quinate and dehydroshikimate to shikimate in the presence of either NADH or NADPH. In contrast, AroE catalyzes the reversible reduction of dehydroshikimate to shikimate in the presence of NADPH. Here we report the crystal structure and biochemical characterization of HI0607, a novel class of shikimate dehydrogenase annotated as shikimate dehydrogenase-like. The kinetic properties of HI0607 are remarkably different from those of AroE and YdiB. In comparison with YdiB, HI0607 catalyzes the oxidation of shikimate but not quinate. The turnover rate for the oxidation of shikimate is approximately 1000-fold lower compared with that of AroE. Phylogenetic analysis reveals three independent clusters representing three classes of shikimate dehydrogenases, namely AroE, YdiB, and this newly characterized shikimate dehydrogenase-like protein. In addition, mutagenesis studies of two invariant residues, Asp-103 and Lys-67, indicate that they are important catalytic groups that may function as a catalytic pair in the shikimate dehydrogenase reaction. This is the first study that describes the crystal structure as well as mutagenesis and mechanistic analysis of this new class of shikimate dehydrogenase.
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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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==About this Structure==
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</jmolCheckbox>
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1NPY is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Haemophilus_influenzae Haemophilus influenzae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NPY OCA].
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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=1npy ConSurf].
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<div style="clear:both"></div>
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==Reference==
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== References ==
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Crystal structure of a novel shikimate dehydrogenase from Haemophilus influenzae., Singh S, Korolev S, Koroleva O, Zarembinski T, Collart F, Joachimiak A, Christendat D, J Biol Chem. 2005 Apr 29;280(17):17101-8. Epub 2005 Feb 25. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15735308 15735308]
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<references/>
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__TOC__
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</StructureSection>
[[Category: Haemophilus influenzae]]
[[Category: Haemophilus influenzae]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Collart, F.]]
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[[Category: Collart F]]
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[[Category: Joachimiak, A.]]
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[[Category: Joachimiak A]]
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[[Category: Korolev, S.]]
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[[Category: Korolev S]]
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[[Category: Koroleva, O.]]
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[[Category: Koroleva O]]
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[[Category: MCSG, Midwest Center for Structural Genomics.]]
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[[Category: Zarembinski T]]
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[[Category: Zarembinski, T.]]
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[[Category: mcsg]]
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[[Category: midwest center for structural genomic]]
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[[Category: protein structure initiative]]
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[[Category: psi]]
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[[Category: structural genomic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:33:51 2008''
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Current revision

Structure of shikimate 5-dehydrogenase-like protein HI0607

PDB ID 1npy

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