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2crx

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Revision as of 20:18, 10 September 2015

STRUCTURE OF THE HOLLIDAY JUNCTION INTERMEDIATE IN CRE-LOXP SITE-SPECIFIC RECOMBINATION

Structural highlights

2crx is a 4 chain structure with sequence from Bpp1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[RECR_BPP1] Catalyzes site-specific recombination between two 34-base-pair LOXP sites. Its role is to maintain the phage genome as a monomeric unit-copy plasmid in the lysogenic state.

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

We have determined the X-ray crystal structures of two DNA Holliday junctions (HJs) bound by Cre recombinase. The HJ is a four-way branched structure that occurs as an intermediate in genetic recombination pathways, including site-specific recombination by the lambda-integrase family. Cre recombinase is an integrase family member that recombines 34 bp loxP sites in the absence of accessory proteins or auxiliary DNA sequences. The 2.7 A structure of Cre recombinase bound to an immobile HJ and the 2.5 A structure of Cre recombinase bound to a symmetric, nicked HJ reveal a nearly planar, twofold-symmetric DNA intermediate that shares features with both the stacked-X and the square conformations of the HJ that exist in the unbound state. The structures support a protein-mediated crossover isomerization of the junction that acts as the switch responsible for activation and deactivation of recombinase active sites. In this model, a subtle isomerization of the Cre recombinase-HJ quaternary structure dictates which strands are cleaved during resolution of the junction via a mechanism that involves neither branch migration nor helical restacking.

Structure of the Holliday junction intermediate in Cre-loxP site-specific recombination.,Gopaul DN, Guo F, Van Duyne GD EMBO J. 1998 Jul 15;17(14):4175-87. PMID:9670032^[1]

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

References

↑ Gopaul DN, Guo F, Van Duyne GD. Structure of the Holliday junction intermediate in Cre-loxP site-specific recombination. EMBO J. 1998 Jul 15;17(14):4175-87. PMID:9670032 doi:10.1093/emboj/17.14.4175

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/2crx"

@@ Line 2: / Line 2: @@
 <StructureSection load='2crx' size='340' side='right' caption='[[2crx]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2crx]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Enterobacteria_phage_p1 Enterobacteria phage p1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CRX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2CRX FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2crx]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Bpp1 Bpp1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CRX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2CRX FirstGlance]. <br>
-</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=2crx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2crx OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2crx RCSB], [http://www.ebi.ac.uk/pdbsum/2crx PDBsum]</span></td></tr>
+</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=2crx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2crx OCA], [http://pdbe.org/2crx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2crx RCSB], [http://www.ebi.ac.uk/pdbsum/2crx PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 25: / Line 25: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2crx" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 32: / Line 33: @@
 __TOC__
 </StructureSection>
-[[Category: Enterobacteria phage p1]]
+[[Category: Bpp1]]
 [[Category: Gopaul, D N]]
 [[Category: Guo, F]]

2crx

From Proteopedia

Revision as of 20:18, 10 September 2015

STRUCTURE OF THE HOLLIDAY JUNCTION INTERMEDIATE IN CRE-LOXP SITE-SPECIFIC RECOMBINATION

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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