3iv5

From Proteopedia

(Difference between revisions)

Revision as of 14:13, 5 August 2016

Crystal structure of Fis bound to 27 bp optimal binding sequence F1

Structural highlights

3iv5 is a 4 chain structure with sequence from Ecoli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	3jr9, 3jra, 3jrb, 3jrc, 3jrd, 3jre, 3jrf, 3jrg, 3jrh, 3jri
Gene:	fis, b3261, JW3229 (ECOLI)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[FIS_ECOLI] Activates ribosomal RNA transcription, as well other genes. Plays a direct role in upstream activation of rRNA promoters. Binds to a recombinational enhancer sequence that is required to stimulate hin-mediated DNA inversion. Prevents initiation of DNA replication from oriC.^[1] ^[2]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The bacterial nucleoid-associated protein Fis regulates diverse reactions by bending DNA and through DNA-dependent interactions with other control proteins and enzymes. In addition to dynamic nonspecific binding to DNA, Fis forms stable complexes with DNA segments that share little sequence conservation. Here we report the first crystal structures of Fis bound to high- and low-affinity 27-base-pair DNA sites. These 11 structures reveal that Fis selects targets primarily through indirect recognition mechanisms involving the shape of the minor groove and sequence-dependent induced fits over adjacent major groove interfaces. The DNA shows an overall curvature of approximately 65 degrees , and the unprecedented close spacing between helix-turn-helix motifs present in the apodimer is accommodated by severe compression of the central minor groove. In silico DNA structure models show that only the roll, twist, and slide parameters are sufficient to reproduce the changes in minor groove widths and recreate the curved Fis-bound DNA structure. Models based on naked DNA structures suggest that Fis initially selects DNA targets with intrinsically narrow minor grooves using the separation between helix-turn-helix motifs in the Fis dimer as a ruler. Then Fis further compresses the minor groove and bends the DNA to generate the bound structure.

The shape of the DNA minor groove directs binding by the DNA-bending protein Fis.,Stella S, Cascio D, Johnson RC Genes Dev. 2010 Apr 15;24(8):814-26. PMID:20395367^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Ross W, Thompson JF, Newlands JT, Gourse RL. E.coli Fis protein activates ribosomal RNA transcription in vitro and in vivo. EMBO J. 1990 Nov;9(11):3733-42. PMID:2209559
↑ Wold S, Crooke E, Skarstad K. The Escherichia coli Fis protein prevents initiation of DNA replication from oriC in vitro. Nucleic Acids Res. 1996 Sep 15;24(18):3527-32. PMID:8836178
↑ Stella S, Cascio D, Johnson RC. The shape of the DNA minor groove directs binding by the DNA-bending protein Fis. Genes Dev. 2010 Apr 15;24(8):814-26. PMID:20395367 doi:24/8/814

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3iv5"

@@ Line 1: / Line 1: @@
 ==Crystal structure of Fis bound to 27 bp optimal binding sequence F1==
 <StructureSection load='3iv5' size='340' side='right' caption='[[3iv5]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3iv5]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IV5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3IV5 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3iv5]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IV5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3IV5 FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3jr9|3jr9]], [[3jra|3jra]], [[3jrb|3jrb]], [[3jrc|3jrc]], [[3jrd|3jrd]], [[3jre|3jre]], [[3jrf|3jrf]], [[3jrg|3jrg]], [[3jrh|3jrh]], [[3jri|3jri]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">fis, b3261, JW3229 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">fis, b3261, JW3229 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</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=3iv5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3iv5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3iv5 RCSB], [http://www.ebi.ac.uk/pdbsum/3iv5 PDBsum]</span></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=3iv5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3iv5 OCA], [http://pdbe.org/3iv5 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3iv5 RCSB], [http://www.ebi.ac.uk/pdbsum/3iv5 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3iv5 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 18: @@
     <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].
+</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=3iv5 ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 27: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3iv5" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 34: / Line 36: @@
 __TOC__
 </StructureSection>
-[[Category: Escherichia coli]]
+[[Category: Ecoli]]
 [[Category: Cascio, D]]
 [[Category: Johnson, R C]]

3iv5

From Proteopedia

Revision as of 14:13, 5 August 2016

Crystal structure of Fis bound to 27 bp optimal binding sequence F1

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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