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PDBsum entry 1vrn
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Photosynthesis
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PDB id
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1vrn
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Contents |
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332 a.a.
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258 a.a.
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273 a.a.
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323 a.a.
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References listed in PDB file
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Key reference
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Title
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Cryogenic structure of the photosynthetic reaction center of blastochloris viridis in the light and dark.
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Authors
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R.H.Baxter,
B.L.Seagle,
N.Ponomarenko,
J.R.Norris.
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Ref.
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Acta Crystallogr D Biol Crystallogr, 2005,
61,
605-612.
[DOI no: ]
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PubMed id
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Abstract
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The structure of the Blastochloris viridis photosynthetic reaction center has
been determined at 100 K by flash-freezing crystals. A data set to 2.2 A
resolution provides a well determined model of the wild-type protein. Of
particular interest are the position, occupancy and heterogeneity of the
Q(B)-binding site. Data were also collected from a crystal frozen immediately
after illumination. The data support predominant binding of Q(B) in the proximal
position in both the neutral and charge-separated states.
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Figure 1.
Figure 1
Simulated-annealing F[o] - F[c] (a) and refined 2F[o] - F[c] (b) electron density for Q[B]
in its active site. Maps contoured at 1.5 [sigma] and 1.0 [sigma] ,
respectively. The alternate model for the quinone is shown in yellow. Figs. 1 and 2 were
produced using PyMOL (DeLano, 2002 [DeLano, W. L. (2002). The PyMOL Molecular
Graphics System, http://www.pymol.org.]-[bluearr.gif] ).
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The above figure is
reprinted
by permission from the IUCr:
Acta Crystallogr D Biol Crystallogr
(2005,
61,
605-612)
copyright 2005.
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Secondary reference #1
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Title
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Specific radiation damage illustrates light-Induced structural changes in the photosynthetic reaction center.
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Authors
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R.H.Baxter,
B.L.Seagle,
N.Ponomarenko,
J.R.Norris.
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Ref.
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J Am Chem Soc, 2004,
126,
16728-16729.
[DOI no: ]
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PubMed id
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