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[[Image:2plt.gif|left|200px]]


{{Structure
==STRUCTURE DETERMINATION OF PLASTOCYANIN FROM A CRYSTAL SPECIMEN WITH HEMIHEDRAL TWINNING FRACTION OF ONE-HALF==
|PDB= 2plt |SIZE=350|CAPTION= <scene name='initialview01'>2plt</scene>, resolution 1.5&Aring;
<StructureSection load='2plt' size='340' side='right'caption='[[2plt]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>
<table><tr><td colspan='2'>[[2plt]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Chlamydomonas_reinhardtii Chlamydomonas reinhardtii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PLT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2PLT FirstGlance]. <br>
|ACTIVITY=  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5&#8491;</td></tr>
|GENE=  
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene></td></tr>
|DOMAIN=
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2plt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2plt OCA], [https://pdbe.org/2plt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2plt RCSB], [https://www.ebi.ac.uk/pdbsum/2plt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2plt ProSAT]</span></td></tr>
|RELATEDENTRY=
</table>
|RESOURCES=<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.ebi.ac.uk/pdbsum/2plt PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2plt RCSB]</span>
== Function ==
}}
[https://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 ==
[[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/pl/2plt_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=2plt ConSurf].
<div style="clear:both"></div>


'''STRUCTURE DETERMINATION OF PLASTOCYANIN FROM A CRYSTAL SPECIMEN WITH HEMIHEDRAL TWINNING FRACTION OF ONE-HALF'''
==See Also==
 
*[[Plastocyanin 3D structures|Plastocyanin 3D structures]]
 
__TOC__
==Overview==
</StructureSection>
The 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.
 
==About this Structure==
2PLT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Chlamydomonas_reinhardtii Chlamydomonas reinhardtii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PLT OCA].
 
==Reference==
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:[http://www.ncbi.nlm.nih.gov/pubmed/8399201 8399201]
[[Category: Chlamydomonas reinhardtii]]
[[Category: Chlamydomonas reinhardtii]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Merchant, S.]]
[[Category: Merchant S]]
[[Category: Redinbo, M R.]]
[[Category: Redinbo MR]]
[[Category: Yeates, T O.]]
[[Category: Yeates TO]]
[[Category: electron transport]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:37:43 2008''

Latest revision as of 12:10, 21 February 2024

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

2plt is a 1 chain structure with sequence from Chlamydomonas reinhardtii. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.5Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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.

See Also

2plt, resolution 1.50Å

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