This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.


Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


2fx0

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
(New page: 200px<br /><applet load="2fx0" size="350" color="white" frame="true" align="right" spinBox="true" caption="2fx0, resolution 2.40&Aring;" /> '''Crystal Structure of...)
Current revision (15:35, 3 March 2021) (edit) (undo)
 
(12 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:2fx0.gif|left|200px]]<br /><applet load="2fx0" size="350" color="white" frame="true" align="right" spinBox="true"
 
-
caption="2fx0, resolution 2.40&Aring;" />
 
-
'''Crystal Structure of HlyIIR, a Hemolysin II transcriptional Regulator'''<br />
 
-
==Overview==
+
==Crystal Structure of HlyIIR, a Hemolysin II transcriptional Regulator==
-
Production of Bacillus cereus and Bacillus anthracis toxins is controlled, by a number of transcriptional regulators. Here we report the crystal, structure of B. cereus HlyIIR, a regulator of the gene encoding the, pore-forming toxin hemolysin II. We show that HlyIIR forms a tight dimer, with a fold and overall architecture similar to the TetR family of, repressors. A remarkable feature of the structure is a large internal, cavity with a volume of 550 A(3) suggesting that the activity of HlyIIR is, modulated by binding of a ligand, which triggers the toxin production., Virtual ligand library screening shows that this pocket can accommodate, compounds with molecular masses of up to 400-500 Da. Based on structural, data and previous biochemical evidence, we propose a model for HlyIIR, interaction with the DNA.
+
<StructureSection load='2fx0' size='340' side='right'caption='[[2fx0]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[2fx0]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_14579 Atcc 14579]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FX0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2FX0 FirstGlance]. <br>
 +
</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
 +
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">hlyIIR ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1396 ATCC 14579])</td></tr>
 +
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2fx0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fx0 OCA], [https://pdbe.org/2fx0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2fx0 RCSB], [https://www.ebi.ac.uk/pdbsum/2fx0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2fx0 ProSAT]</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/fx/2fx0_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=2fx0 ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
Production of Bacillus cereus and Bacillus anthracis toxins is controlled by a number of transcriptional regulators. Here we report the crystal structure of B. cereus HlyIIR, a regulator of the gene encoding the pore-forming toxin hemolysin II. We show that HlyIIR forms a tight dimer with a fold and overall architecture similar to the TetR family of repressors. A remarkable feature of the structure is a large internal cavity with a volume of 550 A(3) suggesting that the activity of HlyIIR is modulated by binding of a ligand, which triggers the toxin production. Virtual ligand library screening shows that this pocket can accommodate compounds with molecular masses of up to 400-500 Da. Based on structural data and previous biochemical evidence, we propose a model for HlyIIR interaction with the DNA.
-
==About this Structure==
+
Crystal structure of Bacillus cereus HlyIIR, a transcriptional regulator of the gene for pore-forming toxin hemolysin II.,Kovalevskiy OV, Lebedev AA, Surin AK, Solonin AS, Antson AA J Mol Biol. 2007 Jan 19;365(3):825-34. Epub 2006 Oct 26. PMID:17097673<ref>PMID:17097673</ref>
-
2FX0 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_cereus Bacillus cereus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FX0 OCA].
+
-
==Reference==
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
Crystal structure of Bacillus cereus HlyIIR, a transcriptional regulator of the gene for pore-forming toxin hemolysin II., Kovalevskiy OV, Lebedev AA, Surin AK, Solonin AS, Antson AA, J Mol Biol. 2007 Jan 19;365(3):825-34. Epub 2006 Oct 26. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17097673 17097673]
+
</div>
-
[[Category: Bacillus cereus]]
+
<div class="pdbe-citations 2fx0" style="background-color:#fffaf0;"></div>
-
[[Category: Single protein]]
+
== References ==
-
[[Category: Antson, A.A.]]
+
<references/>
-
[[Category: Kovalevskiy, O.V.]]
+
__TOC__
-
[[Category: Lebedev, A.A.]]
+
</StructureSection>
-
[[Category: Solonin, A.S.]]
+
[[Category: Atcc 14579]]
-
[[Category: transcriptional regulator]]
+
[[Category: Large Structures]]
-
 
+
[[Category: Antson, A A]]
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jan 29 19:46:38 2008''
+
[[Category: Kovalevskiy, O V]]
 +
[[Category: Lebedev, A A]]
 +
[[Category: Solonin, A S]]
 +
[[Category: Transcription]]
 +
[[Category: Transcriptional regulator]]

Current revision

Crystal Structure of HlyIIR, a Hemolysin II transcriptional Regulator

PDB ID 2fx0

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools