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3qh6

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[[Image:3qh6.png|left|200px]]
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==1.8A resolution structure of CT296 from Chlamydia trachomatis==
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<StructureSection load='3qh6' size='340' side='right' caption='[[3qh6]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3qh6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Chlamydia_trachomatis Chlamydia trachomatis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QH6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3QH6 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3qh7|3qh7]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CTL0548 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=813 Chlamydia trachomatis])</td></tr>
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<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=3qh6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3qh6 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3qh6 RCSB], [http://www.ebi.ac.uk/pdbsum/3qh6 PDBsum]</span></td></tr>
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<table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Chlamydia trachomatis is a medically important pathogen that encodes a relatively high percentage of proteins with unknown function. The three-dimensional structure of a protein can be very informative regarding the protein's functional characteristics; however, determining protein structures experimentally can be very challenging. Computational methods that model protein structures with sufficient accuracy to facilitate functional studies have had notable successes. To evaluate the accuracy and potential impact of computational protein structure modeling of hypothetical proteins encoded by Chlamydia, a successful computational method termed I-TASSER was utilized to model the three-dimensional structure of a hypothetical protein encoded by open reading frame (ORF) CT296. CT296 has been reported to exhibit functional properties of a divalent cation transcription repressor (DcrA), with similarity to the Escherichia coli iron-responsive transcriptional repressor, Fur. Unexpectedly, the I-TASSER model of CT296 exhibited no structural similarity to any DNA-interacting proteins or motifs. To validate the I-TASSER-generated model, the structure of CT296 was solved experimentally using X-ray crystallography. Impressively, the ab initio I-TASSER-generated model closely matched (2.72-A C(alpha) root mean square deviation [RMSD]) the high-resolution (1.8-A) crystal structure of CT296. Modeled and experimentally determined structures of CT296 share structural characteristics of non-heme Fe(II) 2-oxoglutarate-dependent enzymes, although key enzymatic residues are not conserved, suggesting a unique biochemical process is likely associated with CT296 function. Additionally, functional analyses did not support prior reports that CT296 has properties shared with divalent cation repressors such as Fur.
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Ab initio structural modeling of and experimental validation for Chlamydia trachomatis protein CT296 reveal structural similarity to Fe(II) 2-oxoglutarate-dependent enzymes.,Kemege KE, Hickey JM, Lovell S, Battaile KP, Zhang Y, Hefty PS J Bacteriol. 2011 Dec;193(23):6517-28. Epub 2011 Sep 30. PMID:21965559<ref>PMID:21965559</ref>
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The line below this paragraph, containing "STRUCTURE_3qh6", creates the "Structure Box" on the page.
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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or leave the SCENE parameter empty for the default display.
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{{STRUCTURE_3qh6| PDB=3qh6 | SCENE= }}
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===1.8A resolution structure of CT296 from Chlamydia trachomatis===
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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</div>
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== References ==
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<!--
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<references/>
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The line below this paragraph, {{ABSTRACT_PUBMED_21965559}}, adds the Publication Abstract to the page
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 21965559 is the PubMed ID number.
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</StructureSection>
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{{ABSTRACT_PUBMED_21965559}}
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==About this Structure==
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[[3qh6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Chlamydia_trachomatis Chlamydia trachomatis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QH6 OCA].
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==Reference==
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<ref group="xtra">PMID:021965559</ref><references group="xtra"/>
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[[Category: Chlamydia trachomatis]]
[[Category: Chlamydia trachomatis]]
[[Category: Battaile, K P.]]
[[Category: Battaile, K P.]]

Revision as of 05:27, 4 June 2014

1.8A resolution structure of CT296 from Chlamydia trachomatis

3qh6, resolution 1.80Å

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