This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

3v3c

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 12:19, 5 August 2016

Crystal Structure of Chloroplast ATP synthase c-ring from Pisum sativum

Structural highlights

3v3c is a 14 chain structure with sequence from Pisum sativum. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ATPH_PEA] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation.[HAMAP-Rule:MF_01396] Key component of the F(0) channel; it plays a direct role in translocation across the membrane. A homomeric c-ring of between 10-14 subunits forms the central stalk rotor element with the F(1) delta and epsilon subunits.[HAMAP-Rule:MF_01396]

Publication Abstract from PubMed

A ring of 8-15 identical c-subunits is essential for ion-translocation by the rotary electromotor of the ubiquitous F(O)F(1)-ATPase. Here we present the crystal structure at 3.4A resolution of the c-ring from chloroplasts of a higher plant (Pisum sativum), determined using a native preparation. The crystal structure was found to resemble that of an (ancestral) cyanobacterium. Using elastic network modeling to investigate the ring's eigen-modes, we found five dominant modes of motion that fell into three classes. They revealed the following deformations of the ring: (I) ellipsoidal, (II) opposite twisting of the luminal circular surface of the ring against the stromal surface, and (III) kinking of the hairpin-shaped monomers in the middle, resulting in bending/stretching of the ring. Extension of the elastic network analysis to rings of different c(n)-symmetry revealed the same classes of dominant modes as in P. sativum (c(14)). We suggest the following functional roles for these classes: The first and third classes of modes affect the interaction of the c-ring with its counterparts in F(O), namely subunits a and bb'. These modes are likely to be involved in ion-translocation and torque generation. The second class of deformation, along with deformations of subunits gamma and epsilon might serve to elastically buffer the torque transmission between F(O) and F(1).

Structure and flexibility of the C-ring in the electromotor of rotary F(o)F(1)-ATPase of pea chloroplasts.,Saroussi S, Schushan M, Ben-Tal N, Junge W, Nelson N PLoS One. 2012;7(9):e43045. doi: 10.1371/journal.pone.0043045. Epub 2012 Sep 25. PMID:23049735^[1]

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

References

↑ Saroussi S, Schushan M, Ben-Tal N, Junge W, Nelson N. Structure and flexibility of the C-ring in the electromotor of rotary F(o)F(1)-ATPase of pea chloroplasts. PLoS One. 2012;7(9):e43045. doi: 10.1371/journal.pone.0043045. Epub 2012 Sep 25. PMID:23049735 doi:http://dx.doi.org/10.1371/journal.pone.0043045

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3v3c"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of Chloroplast ATP synthase c-ring from Pisum sativum==
 <StructureSection load='3v3c' size='340' side='right' caption='[[3v3c]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
@@ Line 4: / Line 5: @@
 <table><tr><td colspan='2'>[[3v3c]] is a 14 chain structure with sequence from [http://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3V3C OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3V3C FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DGD:DIGALACTOSYL+DIACYL+GLYCEROL+(DGDG)'>DGD</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=YT3:YTTRIUM+(III)+ION'>YT3</scene></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=3v3c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3v3c OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3v3c RCSB], [http://www.ebi.ac.uk/pdbsum/3v3c 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=3v3c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3v3c OCA], [http://pdbe.org/3v3c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3v3c RCSB], [http://www.ebi.ac.uk/pdbsum/3v3c PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3v3c ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 16: / Line 17: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3v3c" style="background-color:#fffaf0;"></div>
 ==See Also==

3v3c

From Proteopedia

Revision as of 12:19, 5 August 2016

Crystal Structure of Chloroplast ATP synthase c-ring from Pisum sativum

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox