1u56

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[[Image:1u56.gif|left|200px]]
 
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{{Structure
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==Crystal structure of an oxygen binding H-NOX domain related to soluble guanylate cyclases (Water-ligated, ferric form)==
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|PDB= 1u56 |SIZE=350|CAPTION= <scene name='initialview01'>1u56</scene>, resolution 1.90&Aring;
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<StructureSection load='1u56' size='340' side='right'caption='[[1u56]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene> and <scene name='pdbligand=HEM:PROTOPORPHYRIN IX CONTAINING FE'>HEM</scene>
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<table><tr><td colspan='2'>[[1u56]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Caldanaerobacter_subterraneus_subsp._tengcongensis Caldanaerobacter subterraneus subsp. tengcongensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U56 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1U56 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]] 1.9&#8491;</td></tr>
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|GENE= Tar4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=119072 Thermoanaerobacter tengcongensis])
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<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=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr>
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}}
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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=1u56 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u56 OCA], [https://pdbe.org/1u56 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1u56 RCSB], [https://www.ebi.ac.uk/pdbsum/1u56 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1u56 ProSAT]</span></td></tr>
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</table>
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'''Crystal structure of an oxygen binding H-NOX domain related to soluble guanylate cyclases (Water-ligated, ferric form)'''
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== Function ==
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[https://www.uniprot.org/uniprot/Q8RBX6_CALS4 Q8RBX6_CALS4]
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== Evolutionary Conservation ==
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==Overview==
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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/u5/1u56_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=1u56 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 ==
Soluble guanylate cyclases are nitric oxide-responsive signaling proteins in which the nitric oxide sensor is a heme-binding domain of unknown structure that we have termed the heme-NO and oxygen binding (H-NOX) domain. H-NOX domains are also found in bacteria, either as isolated domains, or are fused through a membrane-spanning region to methyl-accepting chemotaxis proteins. We have determined the crystal structure of an oxygen-binding H-NOX domain of one such signaling protein from the obligate anaerobe Thermoanaerobacter tengcongensis at 1.77-angstroms resolution, revealing a protein fold unrelated to known structures. Particularly striking is the structure of the protoporphyrin IX group, which is distorted from planarity to an extent not seen before in protein-bound heme groups. Comparison of the structure of the H-NOX domain in two different crystal forms suggests a mechanism whereby alteration in the degree of distortion of the heme group is coupled to changes on the molecular surface of the H-NOX domain and potentially to changes in intermolecular interactions.
Soluble guanylate cyclases are nitric oxide-responsive signaling proteins in which the nitric oxide sensor is a heme-binding domain of unknown structure that we have termed the heme-NO and oxygen binding (H-NOX) domain. H-NOX domains are also found in bacteria, either as isolated domains, or are fused through a membrane-spanning region to methyl-accepting chemotaxis proteins. We have determined the crystal structure of an oxygen-binding H-NOX domain of one such signaling protein from the obligate anaerobe Thermoanaerobacter tengcongensis at 1.77-angstroms resolution, revealing a protein fold unrelated to known structures. Particularly striking is the structure of the protoporphyrin IX group, which is distorted from planarity to an extent not seen before in protein-bound heme groups. Comparison of the structure of the H-NOX domain in two different crystal forms suggests a mechanism whereby alteration in the degree of distortion of the heme group is coupled to changes on the molecular surface of the H-NOX domain and potentially to changes in intermolecular interactions.
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==About this Structure==
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Crystal structure of an oxygen-binding heme domain related to soluble guanylate cyclases.,Pellicena P, Karow DS, Boon EM, Marletta MA, Kuriyan J Proc Natl Acad Sci U S A. 2004 Aug 31;101(35):12854-9. Epub 2004 Aug 23. PMID:15326296<ref>PMID:15326296</ref>
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1U56 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Thermoanaerobacter_tengcongensis Thermoanaerobacter tengcongensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U56 OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Crystal structure of an oxygen-binding heme domain related to soluble guanylate cyclases., Pellicena P, Karow DS, Boon EM, Marletta MA, Kuriyan J, Proc Natl Acad Sci U S A. 2004 Aug 31;101(35):12854-9. Epub 2004 Aug 23. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15326296 15326296]
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</div>
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[[Category: Single protein]]
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<div class="pdbe-citations 1u56" style="background-color:#fffaf0;"></div>
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[[Category: Thermoanaerobacter tengcongensis]]
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[[Category: Boon, E M.]]
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[[Category: Karow, D S.]]
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[[Category: Kuriyan, J.]]
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[[Category: Marletta, M A.]]
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[[Category: Pellicena, P.]]
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[[Category: CL]]
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[[Category: HEM]]
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[[Category: chemotaxis]]
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[[Category: h-nox domain]]
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[[Category: heme]]
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[[Category: oxygen sensor]]
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[[Category: signal transduction]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:27:23 2008''
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==See Also==
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*[[Chemotaxis protein 3D structures|Chemotaxis protein 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Caldanaerobacter subterraneus subsp. tengcongensis]]
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[[Category: Large Structures]]
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[[Category: Boon EM]]
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[[Category: Karow DS]]
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[[Category: Kuriyan J]]
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[[Category: Marletta MA]]
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[[Category: Pellicena P]]

Current revision

Crystal structure of an oxygen binding H-NOX domain related to soluble guanylate cyclases (Water-ligated, ferric form)

PDB ID 1u56

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