2plt: Difference between revisions
No edit summary |
No edit summary |
||
| Line 6: | Line 6: | ||
<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=2plt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2plt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2plt RCSB], [http://www.ebi.ac.uk/pdbsum/2plt 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=2plt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2plt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2plt RCSB], [http://www.ebi.ac.uk/pdbsum/2plt PDBsum]</span></td></tr> | ||
</table> | </table> | ||
== Function == | |||
[[http://www.uniprot.org/uniprot/PLAS_CHLRE PLAS_CHLRE]] Participates in electron transfer between P700 and the cytochrome b6-f complex in photosystem I. | |||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
| Line 29: | Line 31: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Chlamydomonas reinhardtii]] | [[Category: Chlamydomonas reinhardtii]] | ||
[[Category: Merchant, S | [[Category: Merchant, S]] | ||
[[Category: Redinbo, M R | [[Category: Redinbo, M R]] | ||
[[Category: Yeates, T O | [[Category: Yeates, T O]] | ||
[[Category: Electron transport]] | [[Category: Electron transport]] | ||
Revision as of 10:42, 24 December 2014
STRUCTURE DETERMINATION OF PLASTOCYANIN FROM A CRYSTAL SPECIMEN WITH HEMIHEDRAL TWINNING FRACTION OF ONE-HALFSTRUCTURE DETERMINATION OF PLASTOCYANIN FROM A CRYSTAL SPECIMEN WITH HEMIHEDRAL TWINNING FRACTION OF ONE-HALF
Structural highlights
Function[PLAS_CHLRE] Participates in electron transfer between P700 and the cytochrome b6-f complex in photosystem I. 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 PubMedThe crystal structure of plastocyanin from the green alga Chlamydomonas reinhardtii has been determined at 1.5-A resolution with a crystallographic R factor of 16.8%. Plastocyanin is a small (98 amino acids), blue copper-binding protein that catalyzes the transfer of electrons in oxygenic photosynthesis from cytochrome f in the quinol oxidase complex to P700+ in photosystem I. Chlamydomonas reinhardtii plastocyanin is an eight-stranded, antiparallel beta-barrel with a single copper atom coordinated in quasitetrahedral geometry by two imidazole nitrogens (from His-37 and His-87), a cysteine sulfur (from Cys-84), and a methionine sulfur (from Met-92). The molecule contains a region of negative charge surrounding Tyr-83 (the putative distant site of electron transfer) and an exclusively hydrophobic region surrounding His-87; these regions are thought to be involved in the recognition of reaction partners for the purpose of directing electron transfer. Chlamydomonas reinhardtii plastocyanin is similar to the other plastocyanins of known structure, particularly the green algal plastocyanins from Enteromorpha prolifera and Scenedesmus obliquus. A potential "through-bond" path of electron transfer has been identified in the protein that involves the side chain of Tyr-83, the main-chain atoms between residues 83 and 84, the side chain of Cys-84, the copper atom, and the side chain of His-87. The 1.5-A crystal structure of plastocyanin from the green alga Chlamydomonas reinhardtii.,Redinbo MR, Cascio D, Choukair MK, Rice D, Merchant S, Yeates TO Biochemistry. 1993 Oct 12;32(40):10560-7. PMID:8399201[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
| ||||||||||||||||