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1e86

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Cytochrome c' from Alcaligenes xylosoxidans - reduced structure with CO bound to distal side of heme

Structural highlights

1e86 is a 1 chain structure with sequence from Achromobacter xylosoxidans. 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

CYCP_ALCXX Cytochrome c' is the most widely occurring bacterial c-type cytochrome. Cytochromes c' are high-spin proteins and the heme has no sixth ligand. Their exact function is not known.

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

Microbial cytochromes c' contain a 5-coordinate His-ligated heme that forms stable adducts with nitric oxide (NO) and carbon monoxide (CO), but not with dioxygen. We report the 1.95 and 1.35 A resolution crystal structures of the CO- and NO-bound forms of the reduced protein from Alcaligenes xylosoxidans. NO disrupts the His-Fe bond and binds in a novel mode to the proximal face of the heme, giving a 5-coordinate species. In contrast, CO binds 6-coordinate on the distal side. A second CO molecule, not bound to the heme, is located in the proximal pocket. Since the unusual spectroscopic properties of cytochromes c' are shared by soluble guanylate cyclase (sGC), our findings have potential implications for the activation of sGC induced by the binding of NO or CO to the heme domain.

Unprecedented proximal binding of nitric oxide to heme: implications for guanylate cyclase.,Lawson DM, Stevenson CE, Andrew CR, Eady RR EMBO J. 2000 Nov 1;19(21):5661-71. PMID:11060017^[1]

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

References

↑ Lawson DM, Stevenson CE, Andrew CR, Eady RR. Unprecedented proximal binding of nitric oxide to heme: implications for guanylate cyclase. EMBO J. 2000 Nov 1;19(21):5661-71. PMID:11060017 doi:http://dx.doi.org/10.1093/emboj/19.21.5661

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1e86"

@@ Line 3: / Line 3: @@
 <StructureSection load='1e86' size='340' side='right'caption='[[1e86]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1e86]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Alcaligenes_xylosoxidans Alcaligenes xylosoxidans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E86 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1E86 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1e86]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Achromobacter_xylosoxidans Achromobacter xylosoxidans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E86 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1E86 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CMO:CARBON+MONOXIDE'>CMO</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</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]] 1.95&#8491;</td></tr>
-<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PCA:PYROGLUTAMIC+ACID'>PCA</scene></td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CMO:CARBON+MONOXIDE'>CMO</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=PCA:PYROGLUTAMIC+ACID'>PCA</scene></td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1cgo|1cgo]], [[1e83|1e83]], [[1e84|1e84]], [[1e85|1e85]]</div></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=1e86 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e86 OCA], [https://pdbe.org/1e86 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1e86 RCSB], [https://www.ebi.ac.uk/pdbsum/1e86 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1e86 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/CYCP_ALCXX CYCP_ALCXX]] Cytochrome c' is the most widely occurring bacterial c-type cytochrome. Cytochromes c' are high-spin proteins and the heme has no sixth ligand. Their exact function is not known.
+[https://www.uniprot.org/uniprot/CYCP_ALCXX CYCP_ALCXX] Cytochrome c' is the most widely occurring bacterial c-type cytochrome. Cytochromes c' are high-spin proteins and the heme has no sixth ligand. Their exact function is not known.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 37: / Line 36: @@
 __TOC__
 </StructureSection>
-[[Category: Alcaligenes xylosoxidans]]
+[[Category: Achromobacter xylosoxidans]]
 [[Category: Large Structures]]
-[[Category: Andrew, C R]]
+[[Category: Andrew CR]]
-[[Category: Eady, R R]]
+[[Category: Eady RR]]
-[[Category: Lawson, D M]]
+[[Category: Lawson DM]]
-[[Category: Stevenson, C E.M]]
+[[Category: Stevenson CEM]]
-[[Category: 4-helix bundle]]
-[[Category: Carbon monoxide]]
-[[Category: Cytochrome]]
-[[Category: Electron transport]]
-[[Category: Heme]]

1e86

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Current revision

Cytochrome c' from Alcaligenes xylosoxidans - reduced structure with CO bound to distal side of heme

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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