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[[Image:1pse.png|left|200px]]
==THE THREE-DIMENSIONAL SOLUTION STRUCTURE OF PSAE FROM THE CYANOBACTERIUM SYNECHOCOCCUS SP. STRAIN PCC 7002: A PHOTOSYSTEM I PROTEIN THAT SHOWS STRUCTURAL HOMOLOGY WITH SH3 DOMAINS==
<StructureSection load='1pse' size='340' side='right' caption='[[1pse]], [[NMR_Ensembles_of_Models | 10 NMR models]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1pse]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Synechococcus_sp. Synechococcus sp.]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PSE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1PSE FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1psf|1psf]]</td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1pse FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pse OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1pse RCSB], [http://www.ebi.ac.uk/pdbsum/1pse PDBsum]</span></td></tr>
<table>
== 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/ps/1pse_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
PsaE is a 69 amino acid polypeptide from photosystem I present on the stromal side of the thylakoid membrane. The three-dimensional solution structure of this protein from the cyanobacterium Synechococcus sp. strain PCC 7002 was determined at pH 5.8 and room temperature using over 900 experimental restraints derived from two- and three-dimensional NMR experiments. The structure is comprised of a well-defined five-stranded beta-sheet with (+1, +1, +1, -4 alpha) topology. There is no helical region except for a single turn of 3(10) helix between the beta D and beta E strands. PsaE also exhibits a large unrestrained loop spanning residues 42-56. A comparison to known protein structures revealed similarity with the Src homology 3 (SH3) domain, a membrane-associated protein involved in signal transduction in eukaryotes. The match is remarkable as 47 of the alpha-carbons of PsaE can be superimposed onto those of the SH3 domain from chicken brain alpha-spectrin with a root-mean-square deviation of 2.3 A. Although the amino acid sequences have low identity and the loops are different in both proteins, the topology of the beta-sheet and the 3(10) turn is conserved. SH3 domains from other sources show a similar structural homology. The structure of PsaE was used to suggest approaches for elucidating its roles within photosystem I.


{{STRUCTURE_1pse|  PDB=1pse  |  SCENE=  }}
Three-dimensional solution structure of PsaE from the cyanobacterium Synechococcus sp. strain PCC 7002, a photosystem I protein that shows structural homology with SH3 domains.,Falzone CJ, Kao YH, Zhao J, Bryant DA, Lecomte JT Biochemistry. 1994 May 24;33(20):6052-62. PMID:8193119<ref>PMID:8193119</ref>


===THE THREE-DIMENSIONAL SOLUTION STRUCTURE OF PSAE FROM THE CYANOBACTERIUM SYNECHOCOCCUS SP. STRAIN PCC 7002: A PHOTOSYSTEM I PROTEIN THAT SHOWS STRUCTURAL HOMOLOGY WITH SH3 DOMAINS===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_8193119}}
 
==About this Structure==
[[1pse]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Synechococcus_sp. Synechococcus sp.]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PSE OCA].


==See Also==
==See Also==
*[[Photosystem I|Photosystem I]]
*[[Photosystem I|Photosystem I]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:008193119</ref><ref group="xtra">PMID:016477599</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Synechococcus sp.]]
[[Category: Synechococcus sp.]]
[[Category: Bryant, D A.]]
[[Category: Bryant, D A.]]
Retrieved from "https://proteopedia.org/1pse"