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{{STRUCTURE_2xf6|  PDB=2xf6  |  SCENE=  }}
==CRYSTAL STRUCTURE OF BACILLUS SUBTILIS SPP1 PHAGE GP23.1, A PUTATIVE CHAPERONE.==
===CRYSTAL STRUCTURE OF BACILLUS SUBTILIS SPP1 PHAGE GP23.1, A PUTATIVE CHAPERONE.===
<StructureSection load='2xf6' size='340' side='right' caption='[[2xf6]], [[Resolution|resolution]] 2.12&Aring;' scene=''>
{{ABSTRACT_PUBMED_20665904}}
== Structural highlights ==
<table><tr><td colspan='2'>[[2xf6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacillus_phage_spp1 Bacillus phage spp1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XF6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2XF6 FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2xf5|2xf5]], [[2xf7|2xf7]]</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=2xf6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xf6 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2xf6 RCSB], [http://www.ebi.ac.uk/pdbsum/2xf6 PDBsum]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
SPP1 is a siphophage infecting the gram-positive bacterium Bacillus subtilis. The SPP1 tail EM reconstruction revealed that it is mainly constituted by conserved structural proteins such as the major tail proteins (MTPs, gp17.1), the tape measure protein (TMP, gp18), the Distal tail protein (Dit, gp19.1) and the Tail associated lysine (Tal, gp21). A group of 5 small genes (22-24.1) follows in the genome but it remains to be elucidated whether their protein products belong or not to the tail. Noteworthy, an unassigned EM density accounting for approximately 245 kDa is present at the distal end of the SPP1 tail-tip. We report here the gp23.1 crystal structure at 1.6 A resolution, a protein that lacks sequence identity to any known protein. We found that gp23.1 forms a hexamer both in the crystal lattice and in solution as revealed by light scattering measurements. The gp23.1 hexamer does not fit well in the unassigned SPP1 tail-tip EM density and we hypothesize that this protein might act as a chaperone.


==About this Structure==
Crystal structure of Bacillus subtilis SPP1 phage gp23.1, a putative chaperone.,Veesler D, Blangy S, Lichiere J, Ortiz-Lombardia M, Tavares P, Campanacci V, Cambillau C Protein Sci. 2010 Jul 27. PMID:20665904<ref>PMID:20665904</ref>
[[2xf6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacillus_phage_spp1 Bacillus phage spp1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XF6 OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
<ref group="xtra">PMID:020665904</ref><references group="xtra"/>
</div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bacillus phage spp1]]
[[Category: Bacillus phage spp1]]
[[Category: Blangy, S.]]
[[Category: Blangy, S]]
[[Category: Cambillau, C.]]
[[Category: Cambillau, C]]
[[Category: Campanacci, V.]]
[[Category: Campanacci, V]]
[[Category: Lichiere, J.]]
[[Category: Lichiere, J]]
[[Category: Ortiz-Lombardia, M.]]
[[Category: Ortiz-Lombardia, M]]
[[Category: Tavares, P.]]
[[Category: Tavares, P]]
[[Category: Veesler, D.]]
[[Category: Veesler, D]]
[[Category: Chaperone]]
[[Category: Chaperone]]
[[Category: Viral protein]]
[[Category: Viral protein]]

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