2i05

From Proteopedia

(Difference between revisions)

Revision as of 08:14, 4 July 2018

Escherichia Coli Replication Terminator Protein (Tus) Complexed With TerA DNA

Structural highlights

2i05 is a 3 chain structure with sequence from "bacillus_coli"_migula_1895 "bacillus coli" migula 1895. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	2io6, 2ewj, 1ecr
Gene:	tus ("Bacillus coli" Migula 1895)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[TUS_ECOLI] Trans-acting protein required for termination of DNA replication. Binds to DNA replication terminator sequences (terA to terF) to prevent the passage of replication forks. The termination efficiency will be affected by the affinity of this protein for the terminator sequence.

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

During chromosome synthesis in Escherichia coli, replication forks are blocked by Tus bound Ter sites on approach from one direction but not the other. To study the basis of this polarity, we measured the rates of dissociation of Tus from forked TerB oligonucleotides, such as would be produced by the replicative DnaB helicase at both the fork-blocking (nonpermissive) and permissive ends of the Ter site. Strand separation of a few nucleotides at the permissive end was sufficient to force rapid dissociation of Tus to allow fork progression. In contrast, strand separation extending to and including the strictly conserved G-C(6) base pair at the nonpermissive end led to formation of a stable locked complex. Lock formation specifically requires the cytosine residue, C(6). The crystal structure of the locked complex showed that C(6) moves 14 A from its normal position to bind in a cytosine-specific pocket on the surface of Tus.

A molecular mousetrap determines polarity of termination of DNA replication in E. coli.,Mulcair MD, Schaeffer PM, Oakley AJ, Cross HF, Neylon C, Hill TM, Dixon NE Cell. 2006 Jun 30;125(7):1309-19. PMID:16814717^[1]

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

References

↑ Mulcair MD, Schaeffer PM, Oakley AJ, Cross HF, Neylon C, Hill TM, Dixon NE. A molecular mousetrap determines polarity of termination of DNA replication in E. coli. Cell. 2006 Jun 30;125(7):1309-19. PMID:16814717 doi:10.1016/j.cell.2006.04.040

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2i05"

@@ Line 1: / Line 1: @@
 ==Escherichia Coli Replication Terminator Protein (Tus) Complexed With TerA DNA==
 <StructureSection load='2i05' size='340' side='right' caption='[[2i05]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2io6|2io6]], [[2ewj|2ewj]], [[1ecr|1ecr]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">tus ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895])</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=2i05 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2i05 OCA], [http://pdbe.org/2i05 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2i05 RCSB], [http://www.ebi.ac.uk/pdbsum/2i05 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=2i05 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2i05 OCA], [http://pdbe.org/2i05 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2i05 RCSB], [http://www.ebi.ac.uk/pdbsum/2i05 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2i05 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/i0/2i05_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/i0/2i05_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

2i05

From Proteopedia

Revision as of 08:14, 4 July 2018

Escherichia Coli Replication Terminator Protein (Tus) Complexed With TerA DNA

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox