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==Comparisions of the Heme-Free and-Bound Crystal Structures of Human Heme Oxygenase-1==
==Comparisions of the Heme-Free and-Bound Crystal Structures of Human Heme Oxygenase-1==
<StructureSection load='1ni6' size='340' side='right' caption='[[1ni6]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
<StructureSection load='1ni6' size='340' side='right'caption='[[1ni6]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1ni6]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NI6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1NI6 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1ni6]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NI6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NI6 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=TRE:TREHALOSE'>TRE</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HMOX1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
<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=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=PRD_900006:trehalose'>PRD_900006</scene></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Heme_oxygenase Heme oxygenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.99.3 1.14.99.3] </span></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=1ni6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ni6 OCA], [https://pdbe.org/1ni6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ni6 RCSB], [https://www.ebi.ac.uk/pdbsum/1ni6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ni6 ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ni6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ni6 OCA], [http://pdbe.org/1ni6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ni6 RCSB], [http://www.ebi.ac.uk/pdbsum/1ni6 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ni6 ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
[[http://www.uniprot.org/uniprot/HMOX1_HUMAN HMOX1_HUMAN]] Defects in HMOX1 are the cause of heme oxygenase 1 deficiency (HMOX1D) [MIM:[http://omim.org/entry/614034 614034]]. A disease characterized by impaired stress hematopoiesis, resulting in marked erythrocyte fragmentation and intravascular hemolysis, coagulation abnormalities, endothelial damage, and iron deposition in renal and hepatic tissues. Clinical features include persistent hemolytic anemia, asplenia, nephritis, generalized erythematous rash, growth retardation and hepatomegaly.<ref>PMID:9884342</ref>
[https://www.uniprot.org/uniprot/HMOX1_HUMAN HMOX1_HUMAN] Defects in HMOX1 are the cause of heme oxygenase 1 deficiency (HMOX1D) [MIM:[https://omim.org/entry/614034 614034]. A disease characterized by impaired stress hematopoiesis, resulting in marked erythrocyte fragmentation and intravascular hemolysis, coagulation abnormalities, endothelial damage, and iron deposition in renal and hepatic tissues. Clinical features include persistent hemolytic anemia, asplenia, nephritis, generalized erythematous rash, growth retardation and hepatomegaly.<ref>PMID:9884342</ref>  
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/HMOX1_HUMAN HMOX1_HUMAN]] Heme oxygenase cleaves the heme ring at the alpha methene bridge to form biliverdin. Biliverdin is subsequently converted to bilirubin by biliverdin reductase. Under physiological conditions, the activity of heme oxygenase is highest in the spleen, where senescent erythrocytes are sequestrated and destroyed.  
[https://www.uniprot.org/uniprot/HMOX1_HUMAN HMOX1_HUMAN] Heme oxygenase cleaves the heme ring at the alpha methene bridge to form biliverdin. Biliverdin is subsequently converted to bilirubin by biliverdin reductase. Under physiological conditions, the activity of heme oxygenase is highest in the spleen, where senescent erythrocytes are sequestrated and destroyed.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ni/1ni6_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ni/1ni6_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
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</div>
</div>
<div class="pdbe-citations 1ni6" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 1ni6" style="background-color:#fffaf0;"></div>
==See Also==
*[[Heme oxygenase 3D structures|Heme oxygenase 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Heme oxygenase]]
[[Category: Homo sapiens]]
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Friedman, J]]
[[Category: Friedman J]]
[[Category: Lad, L]]
[[Category: Lad L]]
[[Category: Li, H]]
[[Category: Li H]]
[[Category: Montellano, P R.Ortiz de]]
[[Category: Ortiz de Montellano PR]]
[[Category: Poulos, T L]]
[[Category: Poulos TL]]
[[Category: Schuller, D J]]
[[Category: Schuller DJ]]
[[Category: Shimizu, H]]
[[Category: Shimizu H]]
[[Category: Heme degradation]]
[[Category: Heme oxygenase-1]]
[[Category: Oxygen storage-transport complex]]

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