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==Crystal structure of nitrophorin 7 from Rhodnius prolixus at pH 7.8==
==Crystal structure of nitrophorin 7 from Rhodnius prolixus at pH 7.8==
<StructureSection load='4xmd' size='340' side='right' caption='[[4xmd]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
<StructureSection load='4xmd' size='340' side='right'caption='[[4xmd]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4xmd]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XMD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4XMD FirstGlance]. <br>
<table><tr><td colspan='2'>[[4xmd]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Rhodnius_prolixus Rhodnius prolixus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XMD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4XMD FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</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]] 1.6&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Nitrite_dismutase Nitrite dismutase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.7.6.1 1.7.6.1] </span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></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=4xmd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xmd OCA], [http://pdbe.org/4xmd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xmd RCSB], [http://www.ebi.ac.uk/pdbsum/4xmd PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4xmd ProSAT]</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=4xmd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xmd OCA], [https://pdbe.org/4xmd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4xmd RCSB], [https://www.ebi.ac.uk/pdbsum/4xmd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4xmd ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/NP7_RHOPR NP7_RHOPR]] Converts nitrite as the sole substrate to form nitric oxide gas (NO). NO(2-) serves both as an electron donor and as an electron acceptor. Binds to negatively charged cell surfaces of activated platelets; binds to L-a-phosphatidyl-L-serine (PS)-bearing phospholipid membranes. Once bound on an activated platelet, NP7 releases its stored nitric oxide gas (NO) into the victim's tissues while feeding, resulting in vasodilation and inhibition of platelet aggregation. Also acts as an anticoagulant by blocking coagulation-factor binding sites. Has antihistamine activity; binds histamine with high affinity.<ref>PMID:15170336</ref> <ref>PMID:15598503</ref> <ref>PMID:17428677</ref> <ref>PMID:17958381</ref> <ref>PMID:19655755</ref>
[https://www.uniprot.org/uniprot/NP7_RHOPR NP7_RHOPR] Converts nitrite as the sole substrate to form nitric oxide gas (NO). NO(2-) serves both as an electron donor and as an electron acceptor. Binds to negatively charged cell surfaces of activated platelets; binds to L-a-phosphatidyl-L-serine (PS)-bearing phospholipid membranes. Once bound on an activated platelet, NP7 releases its stored nitric oxide gas (NO) into the victim's tissues while feeding, resulting in vasodilation and inhibition of platelet aggregation. Also acts as an anticoagulant by blocking coagulation-factor binding sites. Has antihistamine activity; binds histamine with high affinity.<ref>PMID:15170336</ref> <ref>PMID:15598503</ref> <ref>PMID:17428677</ref> <ref>PMID:17958381</ref> <ref>PMID:19655755</ref>  
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== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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==See Also==
*[[Nitrophorin|Nitrophorin]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Nitrite dismutase]]
[[Category: Large Structures]]
[[Category: Ogata, H]]
[[Category: Rhodnius prolixus]]
[[Category: Heme]]
[[Category: Ogata H]]
[[Category: No transpoter]]
[[Category: Oxidoreductase]]
[[Category: Transport protein]]

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