2boz

From Proteopedia

(Difference between revisions)

Revision as of 22:10, 9 September 2015

Photosynthetic Reaction Center Mutant With Gly M203 Replaced With Leu

Structural highlights

2boz is a 3 chain structure with sequence from "rhodococcus_capsulatus"_molisch_1907 "rhodococcus capsulatus" molisch 1907. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , , ,
Related:	1aig, 1aij, 1ds8, 1dv3, 1dv6, 1e14, 1e6d, 1f6n, 1fnp, 1fnq, 1jgw, 1jgx, 1jgy, 1jgz, 1jh0, 1k6l, 1k6n, 1kby, 1l9b, 1l9j, 1m3x, 1mps, 1ogv, 1pcr, 1pss, 1pst, 1qov, 1rg5, 1rgn, 1rqk, 1rvj, 1ry5, 1rzh, 1rzz, 1s00, 1umx, 1yst, 2bfj, 2bfs, 2bft, 2bnp, 2bns, 2rcr, 4rcr
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[RCEH_RHOSH] The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis. [RCEM_RHOSH] The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis. [RCEL_RHOSH] The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis.

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

The role of a water molecule (water A) located between the primary electron donor (P) and first electron acceptor bacteriochlorophyll (B(A)) in the purple bacterial reaction center was investigated by mutation of glycine M203 to leucine (GM203L). The x-ray crystal structure of the GM203L reaction center shows that the new leucine residue packs in such a way that water A is sterically excluded from the complex, but the structure of the protein-cofactor system around the mutation site is largely undisturbed. The results of absorbance and resonance Raman spectroscopy were consistent with either the removal of a hydrogen bond interaction between water A and the keto carbonyl group of B(A) or a change in the local electrostatic environment of this carbonyl group. Similarities in the spectroscopic properties and x-ray crystal structures of reaction centers with leucine and aspartic acid mutations at the M203 position suggested that the effects of a glycine to aspartic acid substitution at the M203 position can also be explained by steric exclusion of water A. In the GM203L mutant, loss of water A was accompanied by an approximately 8-fold slowing of the rate of decay of the primary donor excited state, indicating that the presence of water A is important for optimization of the rate of primary electron transfer. Possible functions of this water molecule are discussed, including a switching role in which the redox potential of the B(A) acceptor is rapidly modulated in response to oxidation of the primary electron donor.

Strong effects of an individual water molecule on the rate of light-driven charge separation in the Rhodobacter sphaeroides reaction center.,Potter JA, Fyfe PK, Frolov D, Wakeham MC, van Grondelle R, Robert B, Jones MR J Biol Chem. 2005 Jul 22;280(29):27155-64. Epub 2005 May 20. PMID:15908429^[1]

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

References

↑ Potter JA, Fyfe PK, Frolov D, Wakeham MC, van Grondelle R, Robert B, Jones MR. Strong effects of an individual water molecule on the rate of light-driven charge separation in the Rhodobacter sphaeroides reaction center. J Biol Chem. 2005 Jul 22;280(29):27155-64. Epub 2005 May 20. PMID:15908429 doi:http://dx.doi.org/10.1074/jbc.M501961200

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2boz"

@@ Line 5: / Line 5: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCL:BACTERIOCHLOROPHYLL+A'>BCL</scene>, <scene name='pdbligand=BPH:BACTERIOPHEOPHYTIN+A'>BPH</scene>, <scene name='pdbligand=D10:DECANE'>D10</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=LDA:LAURYL+DIMETHYLAMINE-N-OXIDE'>LDA</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=SPN:SPEROIDENONE'>SPN</scene>, <scene name='pdbligand=U10:UBIQUINONE-10'>U10</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1aig|1aig]], [[1aij|1aij]], [[1ds8|1ds8]], [[1dv3|1dv3]], [[1dv6|1dv6]], [[1e14|1e14]], [[1e6d|1e6d]], [[1f6n|1f6n]], [[1fnp|1fnp]], [[1fnq|1fnq]], [[1jgw|1jgw]], [[1jgx|1jgx]], [[1jgy|1jgy]], [[1jgz|1jgz]], [[1jh0|1jh0]], [[1k6l|1k6l]], [[1k6n|1k6n]], [[1kby|1kby]], [[1l9b|1l9b]], [[1l9j|1l9j]], [[1m3x|1m3x]], [[1mps|1mps]], [[1ogv|1ogv]], [[1pcr|1pcr]], [[1pss|1pss]], [[1pst|1pst]], [[1qov|1qov]], [[1rg5|1rg5]], [[1rgn|1rgn]], [[1rqk|1rqk]], [[1rvj|1rvj]], [[1ry5|1ry5]], [[1rzh|1rzh]], [[1rzz|1rzz]], [[1s00|1s00]], [[1umx|1umx]], [[1yst|1yst]], [[2bfj|2bfj]], [[2bfs|2bfs]], [[2bft|2bft]], [[2bnp|2bnp]], [[2bns|2bns]], [[2rcr|2rcr]], [[4rcr|4rcr]]</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=2boz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2boz OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2boz RCSB], [http://www.ebi.ac.uk/pdbsum/2boz 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=2boz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2boz OCA], [http://pdbe.org/2boz PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2boz RCSB], [http://www.ebi.ac.uk/pdbsum/2boz 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 2boz" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

2boz

From Proteopedia

Revision as of 22:10, 9 September 2015

Photosynthetic Reaction Center Mutant With Gly M203 Replaced With Leu

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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