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1k1q

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Revision as of 07:13, 11 October 2017

Crystal Structure of a DinB Family Error Prone DNA Polymerase from Sulfolobus solfataricus

Structural highlights

1k1q is a 2 chain structure with sequence from Atcc 35091. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1k1s
Gene:	DBH (ATCC 35091)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[DPO4_SULSF] Poorly processive, error-prone DNA polymerase involved in untargeted mutagenesis. Copies undamaged DNA at stalled replication forks, which arise in vivo from mismatched or misaligned primer ends. These misaligned primers can be extended by PolIV. Exhibits no 3'-5' exonuclease (proofreading) activity. May be involved in translesional synthesis.

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

A new group of error-prone DNA polymerases overcomes the blockage posed to normal DNA replication by damaged template bases, suggesting an active site with a loose, flexible pocket that accommodates aberrant DNA structures. We have determined a 2.8 A resolution crystal structure of the Sulfolobus solfataricus Dbh protein, a DNA translesion polymerase closely related to Escherichia coli DNA polymerase IV and human polymerase kappa. A high error rate is observed for the Dbh polymerase in a range of 10(-2)-10(-3) for all 12 base substitution mispairs. The crystal structure of Dbh reveals an overall architecture resembling other DNA polymerases but has unique features that are likely to contribute to error-prone synthesis, including -1 frameshifting mutations.

Crystal structure of a DinB family error-prone DNA polymerase from Sulfolobus solfataricus.,Silvian LF, Toth EA, Pham P, Goodman MF, Ellenberger T Nat Struct Biol. 2001 Nov;8(11):984-9. PMID:11685247^[1]

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

References

↑ Silvian LF, Toth EA, Pham P, Goodman MF, Ellenberger T. Crystal structure of a DinB family error-prone DNA polymerase from Sulfolobus solfataricus. Nat Struct Biol. 2001 Nov;8(11):984-9. PMID:11685247 doi:10.1038/nsb1101-984

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/1k1q"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of a DinB Family Error Prone DNA Polymerase from Sulfolobus solfataricus==
 <StructureSection load='1k1q' size='340' side='right' caption='[[1k1q]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1k1s|1k1s]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">DBH ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091])</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=1k1q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k1q OCA], [http://pdbe.org/1k1q PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1k1q RCSB], [http://www.ebi.ac.uk/pdbsum/1k1q 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=1k1q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k1q OCA], [http://pdbe.org/1k1q PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1k1q RCSB], [http://www.ebi.ac.uk/pdbsum/1k1q PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1k1q 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=1k1q ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">

1k1q

From Proteopedia

Revision as of 07:13, 11 October 2017

Crystal Structure of a DinB Family Error Prone DNA Polymerase from Sulfolobus solfataricus

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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