2cxb

From Proteopedia

(Difference between revisions)

Revision as of 19:30, 10 September 2015

CRYSTALLIZATION AND X-RAY STRUCTURE DETERMINATION OF CYTOCHROME C2 FROM RHODOBACTER SPHAEROIDES IN THREE CRYSTAL FORMS

Structural highlights

2cxb is a 2 chain structure with sequence from Rhodobacter sphaeroides. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1cxa, 1cxc
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[CYC2_RHOSH] Cytochrome c2 is found mainly in purple, non-sulfur, photosynthetic bacteria where it functions as the electron donor to the oxidized bacteriochlorophyll in the photophosphorylation pathway. However, it may also have a role in the respiratory chain and is found in some non-photosynthetic bacteria.

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

Cytochrome c(2) serves as the secondary electron donor that reduces the photo-oxidized bacteriochlorophyll dimer in photosynthetic bacteria. Cytochrome c(2) from Rhodobacter sphaeroides has been crystallized in three different forms. At high ionic strength, crystals of a hexagonal space group (P6(1)22) were obtained, while at low ionic strength, triclinic (P1) and tetragonal (P4(1)2(1)2) crystals were formed. The three-dimensional structures of the cytochrome in all three crystal forms have been determined by X-ray diffraction at resolutions of 2.20 A (hexagonal), 1.95 A, (triclinic) and 1.53 A (tetragonal). The most significant difference observed was the binding of an imidazole molecule to the iron atom of the heme group in the hexagonal structure. This binding displaces the sulfur atom of Met l00, which forms the axial ligand in the triclinic and tetragonal structures.

Crystallization and X-ray structure determination of cytochrome c2 from Rhodobacter sphaeroides in three crystal forms.,Axelrod HL, Feher G, Allen JP, Chirino AJ, Day MW, Hsu BT, Rees DC Acta Crystallogr D Biol Crystallogr. 1994 Jul 1;50(Pt 4):596-602. PMID:15299423^[1]

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

References

↑ Axelrod HL, Feher G, Allen JP, Chirino AJ, Day MW, Hsu BT, Rees DC. Crystallization and X-ray structure determination of cytochrome c2 from Rhodobacter sphaeroides in three crystal forms. Acta Crystallogr D Biol Crystallogr. 1994 Jul 1;50(Pt 4):596-602. PMID:15299423 doi:10.1107/S0907444994001319

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/2cxb"

@@ Line 5: / Line 5: @@
 </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>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1cxa|1cxa]], [[1cxc|1cxc]]</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=2cxb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cxb OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2cxb RCSB], [http://www.ebi.ac.uk/pdbsum/2cxb PDBsum]</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=2cxb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cxb OCA], [http://pdbe.org/2cxb PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2cxb RCSB], [http://www.ebi.ac.uk/pdbsum/2cxb PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 27: / Line 27: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2cxb" style="background-color:#fffaf0;"></div>
 ==See Also==

2cxb

From Proteopedia

Revision as of 19:30, 10 September 2015

CRYSTALLIZATION AND X-RAY STRUCTURE DETERMINATION OF CYTOCHROME C2 FROM RHODOBACTER SPHAEROIDES IN THREE CRYSTAL FORMS

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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