2zt9

From Proteopedia

(Difference between revisions)

Revision as of 06:04, 20 June 2018

Crystal Structure of the Cytochrome b6f Complex from Nostoc sp. PCC 7120

Structural highlights

2zt9 is a 8 chain structure with sequence from Nostoc sp. pcc 7120. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , ,
Activity:	Plastoquinol--plastocyanin reductase, with EC number 1.10.9.1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PETM_NOSS1] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions (By similarity). [CYF_NOSS1] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions (By similarity). [PETG_NOSS1] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. PetG is required for either the stability or assembly of the cytochrome b6-f complex (By similarity). [PETD_NOSS1] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions (By similarity). [PETN_NOSS1] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions (By similarity). [CYB6_NOSS1] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions (By similarity). [UCRIA_NOSS1] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions (By similarity). [PETL_NOSS1] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. PetL is important for photoautotrophic growth as well as for electron transfer efficiency and stability of the cytochrome b6-f complex (By similarity).

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 crystal structure of the cyanobacterial cytochrome b(6)f complex has previously been solved to 3.0-A resolution using the thermophilic Mastigocladus laminosus whose genome has not been sequenced. Several unicellular cyanobacteria, whose genomes have been sequenced and are tractable for mutagenesis, do not yield b(6)f complex in an intact dimeric state with significant electron transport activity. The genome of Nostoc sp. PCC 7120 has been sequenced and is closer phylogenetically to M. laminosus than are unicellular cyanobacteria. The amino acid sequences of the large core subunits and four small peripheral subunits of Nostoc are 88 and 80% identical to those in the M. laminosus b(6)f complex. Purified b(6)f complex from Nostoc has a stable dimeric structure, eight subunits with masses similar to those of M. laminosus, and comparable electron transport activity. The crystal structure of the native b(6)f complex, determined to a resolution of 3.0A (PDB id: 2ZT9), is almost identical to that of M. laminosus. Two unique aspects of the Nostoc complex are: (i) a dominant conformation of heme b(p) that is rotated 180 degrees about the alpha- and gamma-meso carbon axis relative to the orientation in the M. laminosus complex and (ii) acetylation of the Rieske iron-sulfur protein (PetC) at the N terminus, a post-translational modification unprecedented in cyanobacterial membrane and electron transport proteins, and in polypeptides of cytochrome bc complexes from any source. The high spin electronic character of the unique heme c(n) is similar to that previously found in the b(6)f complex from other sources.

Structure-Function, Stability, and Chemical Modification of the Cyanobacterial Cytochrome b6f Complex from Nostoc sp. PCC 7120.,Baniulis D, Yamashita E, Whitelegge JP, Zatsman AI, Hendrich MP, Hasan SS, Ryan CM, Cramer WA J Biol Chem. 2009 Apr 10;284(15):9861-9. doi: 10.1074/jbc.M809196200. Epub 2009, Feb 2. PMID:19189962^[1]

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

References

↑ Baniulis D, Yamashita E, Whitelegge JP, Zatsman AI, Hendrich MP, Hasan SS, Ryan CM, Cramer WA. Structure-Function, Stability, and Chemical Modification of the Cyanobacterial Cytochrome b6f Complex from Nostoc sp. PCC 7120. J Biol Chem. 2009 Apr 10;284(15):9861-9. doi: 10.1074/jbc.M809196200. Epub 2009, Feb 2. PMID:19189962 doi:http://dx.doi.org/10.1074/jbc.M809196200

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2zt9"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of the Cytochrome b6f Complex from Nostoc sp. PCC 7120==
 <StructureSection load='2zt9' size='340' side='right' caption='[[2zt9]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2zt9]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Anabaena_7120 Anabaena 7120]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZT9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ZT9 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2zt9]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Nostoc_sp._pcc_7120 Nostoc sp. pcc 7120]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZT9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ZT9 FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=OPC:(7R,17E)-4-HYDROXY-N,N,N,7-TETRAMETHYL-7-[(8E)-OCTADEC-8-ENOYLOXY]-10-OXO-3,5,9-TRIOXA-4-PHOSPHAHEPTACOS-17-EN-1-AMINIUM+4-OXIDE'>OPC</scene>, <scene name='pdbligand=SQD:1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL'>SQD</scene>, <scene name='pdbligand=UMQ:UNDECYL-MALTOSIDE'>UMQ</scene></td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Plastoquinol--plastocyanin_reductase Plastoquinol--plastocyanin reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.10.9.1 1.10.9.1] </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=2zt9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zt9 OCA], [http://pdbe.org/2zt9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zt9 RCSB], [http://www.ebi.ac.uk/pdbsum/2zt9 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=2zt9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zt9 OCA], [http://pdbe.org/2zt9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zt9 RCSB], [http://www.ebi.ac.uk/pdbsum/2zt9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2zt9 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zt/2zt9_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zt/2zt9_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 35: / Line 36: @@
 __TOC__
 </StructureSection>
-[[Category: Anabaena 7120]]
+[[Category: Nostoc sp. pcc 7120]]
 [[Category: Plastoquinol--plastocyanin reductase]]
+[[Category: Baniulis, D]]
 [[Category: Craner, W A]]
-[[Category: D., Baniulis]]
+[[Category: Yamashita, E]]
-[[Category: E., Yamashita]]
 [[Category: 2fe-2s protein]]
 [[Category: Cytochrome b6f complex]]

2zt9

From Proteopedia

Revision as of 06:04, 20 June 2018

Crystal Structure of the Cytochrome b6f Complex from Nostoc sp. PCC 7120

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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