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[[Image:1itw.jpg|left|200px]]


{{Structure
==Crystal structure of the monomeric isocitrate dehydrogenase in complex with isocitrate and Mn==
|PDB= 1itw |SIZE=350|CAPTION= <scene name='initialview01'>1itw</scene>, resolution 1.95&Aring;
<StructureSection load='1itw' size='340' side='right'caption='[[1itw]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene> and <scene name='pdbligand=ICT:ISOCITRIC ACID'>ICT</scene>
<table><tr><td colspan='2'>[[1itw]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Azotobacter_vinelandii Azotobacter vinelandii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ITW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ITW FirstGlance]. <br>
|ACTIVITY= [http://en.wikipedia.org/wiki/Isocitrate_dehydrogenase_(NADP(+)) Isocitrate dehydrogenase (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.42 1.1.1.42]  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.95&#8491;</td></tr>
|GENE=  
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ICT:ISOCITRIC+ACID'>ICT</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr>
}}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1itw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1itw OCA], [https://pdbe.org/1itw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1itw RCSB], [https://www.ebi.ac.uk/pdbsum/1itw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1itw ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/IDH_AZOVI IDH_AZOVI]
== 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/it/1itw_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=1itw ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
NADP(+)-dependent isocitrate dehydrogenase is a member of the beta-decarboxylating dehydrogenase family and catalyzes the oxidative decarboxylation reaction from 2R,3S-isocitrate to yield 2-oxoglutarate and CO(2) in the Krebs cycle. Although most prokaryotic NADP(+)-dependent isocitrate dehydrogenases (IDHs) are homodimeric enzymes, the monomeric IDH with a molecular weight of 80-100 kDa has been found in a few species of bacteria. The 1.95 A crystal structure of the monomeric IDH revealed that it consists of two distinct domains, and its folding topology is related to the dimeric IDH. The structure of the large domain repeats a motif observed in the dimeric IDH. Such a fusional structure by domain duplication enables a single polypeptide chain to form a structure at the catalytic site that is homologous to the dimeric IDH, the catalytic site of which is located at the interface of two identical subunits.


'''Crystal structure of the monomeric isocitrate dehydrogenase in complex with isocitrate and Mn'''
Structure of the monomeric isocitrate dehydrogenase: evidence of a protein monomerization by a domain duplication.,Yasutake Y, Watanabe S, Yao M, Takada Y, Fukunaga N, Tanaka I Structure. 2002 Dec;10(12):1637-48. PMID:12467571<ref>PMID:12467571</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1itw" style="background-color:#fffaf0;"></div>


==Overview==
==See Also==
NADP(+)-dependent isocitrate dehydrogenase is a member of the beta-decarboxylating dehydrogenase family and catalyzes the oxidative decarboxylation reaction from 2R,3S-isocitrate to yield 2-oxoglutarate and CO(2) in the Krebs cycle. Although most prokaryotic NADP(+)-dependent isocitrate dehydrogenases (IDHs) are homodimeric enzymes, the monomeric IDH with a molecular weight of 80-100 kDa has been found in a few species of bacteria. The 1.95 A crystal structure of the monomeric IDH revealed that it consists of two distinct domains, and its folding topology is related to the dimeric IDH. The structure of the large domain repeats a motif observed in the dimeric IDH. Such a fusional structure by domain duplication enables a single polypeptide chain to form a structure at the catalytic site that is homologous to the dimeric IDH, the catalytic site of which is located at the interface of two identical subunits.
*[[Isocitrate dehydrogenase 3D structures|Isocitrate dehydrogenase 3D structures]]
 
== References ==
==About this Structure==
<references/>
1ITW is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Azotobacter_vinelandii Azotobacter vinelandii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ITW OCA].
__TOC__
 
</StructureSection>
==Reference==
Structure of the monomeric isocitrate dehydrogenase: evidence of a protein monomerization by a domain duplication., Yasutake Y, Watanabe S, Yao M, Takada Y, Fukunaga N, Tanaka I, Structure. 2002 Dec;10(12):1637-48. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12467571 12467571]
[[Category: Azotobacter vinelandii]]
[[Category: Azotobacter vinelandii]]
[[Category: Isocitrate dehydrogenase (NADP(+))]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: Fukunaga N]]
[[Category: Fukunaga, N.]]
[[Category: Takada Y]]
[[Category: Takada, Y.]]
[[Category: Tanaka I]]
[[Category: Tanaka, I.]]
[[Category: Watanabe S]]
[[Category: Watanabe, S.]]
[[Category: Yao M]]
[[Category: Yao, M.]]
[[Category: Yasutake Y]]
[[Category: Yasutake, Y.]]
[[Category: ICT]]
[[Category: MN]]
[[Category: greece key motif]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:54:50 2008''

Latest revision as of 02:36, 28 December 2023

Crystal structure of the monomeric isocitrate dehydrogenase in complex with isocitrate and MnCrystal structure of the monomeric isocitrate dehydrogenase in complex with isocitrate and Mn

Structural highlights

1itw is a 4 chain structure with sequence from Azotobacter vinelandii. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.95Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

IDH_AZOVI

Evolutionary Conservation

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

Publication Abstract from PubMed

NADP(+)-dependent isocitrate dehydrogenase is a member of the beta-decarboxylating dehydrogenase family and catalyzes the oxidative decarboxylation reaction from 2R,3S-isocitrate to yield 2-oxoglutarate and CO(2) in the Krebs cycle. Although most prokaryotic NADP(+)-dependent isocitrate dehydrogenases (IDHs) are homodimeric enzymes, the monomeric IDH with a molecular weight of 80-100 kDa has been found in a few species of bacteria. The 1.95 A crystal structure of the monomeric IDH revealed that it consists of two distinct domains, and its folding topology is related to the dimeric IDH. The structure of the large domain repeats a motif observed in the dimeric IDH. Such a fusional structure by domain duplication enables a single polypeptide chain to form a structure at the catalytic site that is homologous to the dimeric IDH, the catalytic site of which is located at the interface of two identical subunits.

Structure of the monomeric isocitrate dehydrogenase: evidence of a protein monomerization by a domain duplication.,Yasutake Y, Watanabe S, Yao M, Takada Y, Fukunaga N, Tanaka I Structure. 2002 Dec;10(12):1637-48. PMID:12467571[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. ↑ Yasutake Y, Watanabe S, Yao M, Takada Y, Fukunaga N, Tanaka I. Structure of the monomeric isocitrate dehydrogenase: evidence of a protein monomerization by a domain duplication. Structure. 2002 Dec;10(12):1637-48. PMID:12467571

1itw, resolution 1.95Å

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