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1cxc

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{{STRUCTURE_1cxc| PDB=1cxc | SCENE= }}
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'''CRYSTALLIZATION AND X-RAY STRUCTURE DETERMINATION OF CYTOCHROME C2 FROM RHODOBACTER SPHAEROIDES IN THREE CRYSTAL FORMS'''
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===CRYSTALLIZATION AND X-RAY STRUCTURE DETERMINATION OF CYTOCHROME C2 FROM RHODOBACTER SPHAEROIDES IN THREE CRYSTAL FORMS===
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==Overview==
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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.
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{{ABSTRACT_PUBMED_15299423}}
==About this Structure==
==About this Structure==
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Revision as of 18:42, 30 June 2008

Image:1cxc.png

Template:STRUCTURE 1cxc

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

Template:ABSTRACT PUBMED 15299423

About this Structure

1CXC is a Single protein structure of sequence from Rhodobacter sphaeroides. Full crystallographic information is available from OCA.

Reference

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

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