1tf2

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[[Image:1tf2.jpg|left|200px]]
[[Image:1tf2.jpg|left|200px]]
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{{Structure
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<!--
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|PDB= 1tf2 |SIZE=350|CAPTION= <scene name='initialview01'>1tf2</scene>, resolution 2.90&Aring;
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The line below this paragraph, containing "STRUCTURE_1tf2", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=ADP:ADENOSINE-5&#39;-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY=
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or leave the SCENE parameter empty for the default display.
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|GENE= SECA, DIV+, BSU35300 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1423 Bacillus subtilis])
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-->
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|DOMAIN=
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{{STRUCTURE_1tf2| PDB=1tf2 | SCENE= }}
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|RELATEDENTRY=[[1tf5|1TF5]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1tf2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tf2 OCA], [http://www.ebi.ac.uk/pdbsum/1tf2 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1tf2 RCSB]</span>
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}}
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'''Crystal structure of SecA:ADP in an open conformation from Bacillus Subtilis'''
'''Crystal structure of SecA:ADP in an open conformation from Bacillus Subtilis'''
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[[Category: Osborne, A R.]]
[[Category: Osborne, A R.]]
[[Category: Rapoport, T A.]]
[[Category: Rapoport, T A.]]
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[[Category: atpase]]
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[[Category: Atpase]]
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[[Category: helicase]]
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[[Category: Helicase]]
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[[Category: secretion]]
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[[Category: Secretion]]
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[[Category: translocation]]
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[[Category: Translocation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:52:27 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:55:10 2008''
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Revision as of 06:52, 3 May 2008

Image:1tf2.jpg

Template:STRUCTURE 1tf2

Crystal structure of SecA:ADP in an open conformation from Bacillus Subtilis


Overview

The ATPase SecA mediates the posttranslational translocation of a wide range of polypeptide substrates through the SecY channel in the cytoplasmic membrane of bacteria. We have determined the crystal structure of a monomeric form of Bacillus subtilis SecA at a 2.2-A resolution. A comparison with the previously determined structures of SecA reveals a nucleotide-independent, large conformational change that opens a deep groove similar to that in other proteins that interact with diverse polypeptides. We propose that the open form of SecA represents an activated state.

About this Structure

1TF2 is a Single protein structure of sequence from Bacillus subtilis. Full crystallographic information is available from OCA.

Reference

A large conformational change of the translocation ATPase SecA., Osborne AR, Clemons WM Jr, Rapoport TA, Proc Natl Acad Sci U S A. 2004 Jul 27;101(30):10937-42. Epub 2004 Jul 15. PMID:15256599 Page seeded by OCA on Sat May 3 09:52:27 2008

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