1ng9

From Proteopedia

(Difference between revisions)

Current revision

E.coli MutS R697A: an ATPase-asymmetry mutant

Structural highlights

1ng9 is a 4 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.6Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

MUTS_ECOLI This protein is involved in the repair of mismatches in DNA. It is possible that it carries out the mismatch recognition step. This protein has a weak ATPase activity.

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

DNA mismatch repair is an essential safeguard of genomic integrity by removing base mispairings that may arise from DNA polymerase errors or from homologous recombination between DNA strands. In Escherichia coli, the MutS enzyme recognizes mismatches and initiates repair. MutS has an intrinsic ATPase activity crucial for its function, but which is poorly understood. We show here that within the MutS homodimer, the two chemically identical ATPase sites have different affinities for ADP, and the two sites alternate in ATP hydrolysis. A single residue, Arg697, located at the interface of the two ATPase domains, controls the asymmetry. When mutated, the asymmetry is lost and mismatch repair in vivo is impaired. We propose that asymmetry of the ATPase domains is an essential feature of mismatch repair that controls the timing of the different steps in the repair cascade.

The alternating ATPase domains of MutS control DNA mismatch repair.,Lamers MH, Winterwerp HH, Sixma TK EMBO J. 2003 Feb 3;22(3):746-56. PMID:12554674^[1]

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

References

↑ Lamers MH, Winterwerp HH, Sixma TK. The alternating ATPase domains of MutS control DNA mismatch repair. EMBO J. 2003 Feb 3;22(3):746-56. PMID:12554674 doi:10.1093/emboj/cdg064

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/1ng9"

Categories: Escherichia coli | Large Structures | Lamers MH | Sixma TK | Winterwerp HHK

@@ Line 3: / Line 3: @@
 <StructureSection load='1ng9' size='340' side='right'caption='[[1ng9]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1ng9]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NG9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NG9 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1ng9]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NG9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NG9 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1e3m|1e3m]], [[1ewq|1ewq]], [[1fw6|1fw6]], [[1ewr|1ewr]]</div></td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MutS ([https://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'>[https://proteopedia.org/fgij/fg.htm?mol=1ng9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ng9 OCA], [https://pdbe.org/1ng9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ng9 RCSB], [https://www.ebi.ac.uk/pdbsum/1ng9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ng9 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/MUTS_ECOLI MUTS_ECOLI]] This protein is involved in the repair of mismatches in DNA. It is possible that it carries out the mismatch recognition step. This protein has a weak ATPase activity.
+[https://www.uniprot.org/uniprot/MUTS_ECOLI MUTS_ECOLI] This protein is involved in the repair of mismatches in DNA. It is possible that it carries out the mismatch recognition step. This protein has a weak ATPase activity.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 30: / Line 29: @@
 </div>
 <div class="pdbe-citations 1ng9" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[DNA mismatch repair protein 3D structures|DNA mismatch repair protein 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Bacillus coli migula 1895]]
+[[Category: Escherichia coli]]
 [[Category: Large Structures]]
-[[Category: Lamers, M H]]
+[[Category: Lamers MH]]
-[[Category: Sixma, T K]]
+[[Category: Sixma TK]]
-[[Category: Winterwerp, H H.K]]
+[[Category: Winterwerp HHK]]
-[[Category: Abc atpase]]
-[[Category: Alternating atpase]]
-[[Category: Asymmetry]]
-[[Category: Dna binding]]
-[[Category: Dna binding protein]]
-[[Category: Dna repair]]

1ng9

From Proteopedia

Current revision

E.coli MutS R697A: an ATPase-asymmetry mutant

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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