1r2c

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[[Image:1r2c.gif|left|200px]]
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{{Seed}}
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{{STRUCTURE_1r2c| PDB=1r2c | SCENE= }}
{{STRUCTURE_1r2c| PDB=1r2c | SCENE= }}
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'''PHOTOSYNTHETIC REACTION CENTER BLASTOCHLORIS VIRIDIS (ATCC)'''
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===PHOTOSYNTHETIC REACTION CENTER BLASTOCHLORIS VIRIDIS (ATCC)===
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==Overview==
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Light-induced structural changes in the bacterial reaction center were studied by a time-resolved crystallographic experiment. Crystals of protein from Blastochloris viridis (formerly Rhodopseudomonas viridis) were reconstituted with ubiquinone and analyzed by monochromatic and Laue diffraction, in the dark and 3 ms after illuminating the crystal with a pulsed laser (630 nm, 3 mJ/pulse, 7 ns duration). Refinement of monochromatic data shows that ubiquinone binds only in the "proximal" Q(B) binding site. No significant structural difference was observed between the light and dark datasets; in particular, no quinone motion was detected. This result may be reconciled with previous studies by postulating equilibration of the "distal" and "proximal" binding sites upon extended dark adaption, and in which movement of ubiquinone is not the conformational gate for the first electron transfer between Q(A) and Q(B).
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The line below this paragraph, {{ABSTRACT_PUBMED_15073325}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 15073325 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15073325}}
==About this Structure==
==About this Structure==
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[[Category: Srajer, V.]]
[[Category: Srajer, V.]]
[[Category: Photosynthetic reaction center]]
[[Category: Photosynthetic reaction center]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 06:59:24 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 18:37:43 2008''

Revision as of 15:37, 27 July 2008

Image:1r2c.png

Template:STRUCTURE 1r2c

PHOTOSYNTHETIC REACTION CENTER BLASTOCHLORIS VIRIDIS (ATCC)

Template:ABSTRACT PUBMED 15073325

About this Structure

1R2C is a Protein complex structure of sequences from Blastochloris viridis. Full crystallographic information is available from OCA.

Reference

Time-resolved crystallographic studies of light-induced structural changes in the photosynthetic reaction center., Baxter RH, Ponomarenko N, Srajer V, Pahl R, Moffat K, Norris JR, Proc Natl Acad Sci U S A. 2004 Apr 20;101(16):5982-7. Epub 2004 Apr 8. PMID:15073325

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