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1rzh

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Revision as of 06:37, 8 March 2018

PHOTOSYNTHETIC REACTION CENTER DOUBLE MUTANT FROM RHODOBACTER SPHAEROIDES WITH ASP L213 REPLACED WITH ASN AND ARG M233 REPLACED WITH CYS IN THE CHARGE-NEUTRAL DQAQB STATE (TRIGONAL FORM)

Structural highlights

1rzh 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:	1aij, 1aig, 1rvj, 1ry5, 1rzz, 1s00
Gene:	PUFL ("Rhodococcus capsulatus" Molisch 1907), PUFM ("Rhodococcus capsulatus" Molisch 1907), PUHA ("Rhodococcus capsulatus" Molisch 1907)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

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

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

In the photosynthetic reaction center (RC) from Rhodobacter sphaeroides, the reduction of a bound quinone molecule Q(B) is coupled with proton uptake. When Asp-L213 is replaced by Asn, proton transfer is inhibited. Proton transfer was restored by two second-site revertant mutations, Arg-M233-->Cys and Arg-H177-->His. Kinetic effects of Cd(2+) on proton transfer showed that the entry point in revertant RCs to be the same as in the native RC. The structures of the parental and two revertant RCs were determined at resolutions of 2.10, 1.80, and 2.75 A. From the structures, we were able to delineate alternate proton transfer pathways in the revertants. The main changes occur near Glu-H173, which allow it to substitute for the missing Asp-L213. The electrostatic changes near Glu-H173 cause it to be a good proton donor and acceptor, and the structural changes create a cavity which accommodates water molecules that connect Glu-H173 to other proton transfer components.

X-Ray structure determination of three mutants of the bacterial photosynthetic reaction centers from Rb. sphaeroides; altered proton transfer pathways.,Xu Q, Axelrod HL, Abresch EC, Paddock ML, Okamura MY, Feher G Structure. 2004 Apr;12(4):703-15. PMID:15062092^[1]

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

References

↑ Xu Q, Axelrod HL, Abresch EC, Paddock ML, Okamura MY, Feher G. X-Ray structure determination of three mutants of the bacterial photosynthetic reaction centers from Rb. sphaeroides; altered proton transfer pathways. Structure. 2004 Apr;12(4):703-15. PMID:15062092 doi:http://dx.doi.org/10.1016/j.str.2004.03.001

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/1rzh"

@@ Line 1: / Line 1: @@
 ==PHOTOSYNTHETIC REACTION CENTER DOUBLE MUTANT FROM RHODOBACTER SPHAEROIDES WITH ASP L213 REPLACED WITH ASN AND ARG M233 REPLACED WITH CYS IN THE CHARGE-NEUTRAL DQAQB STATE (TRIGONAL FORM)==
 <StructureSection load='1rzh' size='340' side='right' caption='[[1rzh]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1aij|1aij]], [[1aig|1aig]], [[1rvj|1rvj]], [[1ry5|1ry5]], [[1rzz|1rzz]], [[1s00|1s00]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PUFL ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1063 "Rhodococcus capsulatus" Molisch 1907]), PUFM ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1063 "Rhodococcus capsulatus" Molisch 1907]), PUHA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1063 "Rhodococcus capsulatus" Molisch 1907])</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=1rzh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rzh OCA], [http://pdbe.org/1rzh PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1rzh RCSB], [http://www.ebi.ac.uk/pdbsum/1rzh 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=1rzh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rzh OCA], [http://pdbe.org/1rzh PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1rzh RCSB], [http://www.ebi.ac.uk/pdbsum/1rzh PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1rzh ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/rz/1rzh_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/rz/1rzh_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

1rzh

From Proteopedia

Revision as of 06:37, 8 March 2018

PHOTOSYNTHETIC REACTION CENTER DOUBLE MUTANT FROM RHODOBACTER SPHAEROIDES WITH ASP L213 REPLACED WITH ASN AND ARG M233 REPLACED WITH CYS IN THE CHARGE-NEUTRAL DQAQB STATE (TRIGONAL FORM)

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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