1wrg: Difference between revisions

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-[[Image:1wrg.png|left|200px]]
-{{STRUCTURE_1wrg|  PDB=1wrg  |  SCENE=  }}
+==Light-Harvesting Complex 1 Beta Subunit from Wild-Type Rhodospirillum rubrum==
+<StructureSection load='1wrg' size='340' side='right'caption='[[1wrg]]' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[1wrg]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Rhodospirillum_rubrum Rhodospirillum rubrum]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WRG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1WRG FirstGlance]. <br>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1wrg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wrg OCA], [https://pdbe.org/1wrg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1wrg RCSB], [https://www.ebi.ac.uk/pdbsum/1wrg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1wrg ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/LHB_RHORT LHB_RHORT] Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers.
+== Evolutionary Conservation ==
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/wr/1wrg_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
+  </jmolCheckbox>
+</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1wrg ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+We have determined the solution structures of the core light-harvesting (LH1) alpha and beta-polypeptides from wild-type purple photosynthetic bacterium Rhodospirillum rubrum using multidimensional NMR spectroscopy. The two polypeptides form stable alpha helices in organic solution. The structure of alpha-polypeptide consists of a long helix of 32 amino acid residues over the central transmembrane domain and a short helical segment at the N terminus that is followed by a three-residue loop. Pigment-coordinating histidine residue (His29) in the alpha-polypeptide is located near the middle of the central helix. The structure of beta-polypeptide shows a single helix of 32 amino acid residues in the membrane-spanning region with the pigment-coordinating histidine residue (His38) at a position close to the C-terminal end of the helix. Strong hydrogen bonds have been identified for the backbone amide protons over the central helical regions, indicating a rigid property of the two polypeptides. The overall structures of the R.rubrum LH1 alpha and beta-polypeptides are different from those previously reported for the LH1 beta-polypeptide of Rhodobacter sphaeroides, but are very similar to the structures of the corresponding LH2 alpha and beta-polypeptides determined by X-ray crystallography. A model constructed for the structural subunit (B820) of LH1 complex using the solution structures reveals several important features on the interactions between the LH1 alpha and beta-polypeptides. The significance of the N-terminal regions of the two polypeptides for stabilizing both B820 and LH1 complexes, as clarified by many experiments, may be attributed to the interactions between the short N-terminal helix (Trp2-Gln6) of alpha-polypeptide and a GxxxG motif in the beta-polypeptide.
-===Light-Harvesting Complex 1 Beta Subunit from Wild-Type Rhodospirillum rubrum===
+Solution structures of the core light-harvesting alpha and beta polypeptides from Rhodospirillum rubrum: implications for the pigment-protein and protein-protein interactions.,Wang ZY, Gokan K, Kobayashi M, Nozawa T J Mol Biol. 2005 Mar 25;347(2):465-77. Epub 2005 Jan 25. PMID:15740753<ref>PMID:15740753</ref>
-{{ABSTRACT_PUBMED_15740753}}
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
-==About this Structure==
+<div class="pdbe-citations 1wrg" style="background-color:#fffaf0;"></div>
-[[1wrg]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Rhodospirillum_rubrum Rhodospirillum rubrum]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WRG OCA].
+== References ==
+<references/>
-==Reference==
+__TOC__
-<ref group="xtra">PMID:015740753</ref><references group="xtra"/>
+</StructureSection>
+[[Category: Large Structures]]
 [[Category: Rhodospirillum rubrum]]
-[[Category: Gokan, K.]]
+[[Category: Gokan K]]
-[[Category: Kobayashi, M.]]
+[[Category: Kobayashi M]]
-[[Category: Nozawa, T.]]
+[[Category: Nozawa T]]
-[[Category: Wang, Z Y.]]
+[[Category: Wang Z-Y]]
-[[Category: Light-harvesting]]
-[[Category: Membrane protein]]
-[[Category: Photosynthesis]]
-[[Category: Pigment binding]]