2q6t: Difference between revisions
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==Crystal structure of the Thermus aquaticus DnaB monomer== | ==Crystal structure of the Thermus aquaticus DnaB monomer== | ||
<StructureSection load='2q6t' size='340' side='right' caption='[[2q6t]], [[Resolution|resolution]] 2.90Å' scene=''> | <StructureSection load='2q6t' size='340' side='right'caption='[[2q6t]], [[Resolution|resolution]] 2.90Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2q6t]] is a 4 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2q6t]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_25104 Atcc 25104]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Q6T OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2Q6T FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dnab ([ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dnab ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=271 ATCC 25104])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2q6t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2q6t OCA], [https://pdbe.org/2q6t PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2q6t RCSB], [https://www.ebi.ac.uk/pdbsum/2q6t PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2q6t ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
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==See Also== | ==See Also== | ||
*[[Helicase|Helicase]] | *[[Helicase 3D structures|Helicase 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Atcc 25104]] | [[Category: Atcc 25104]] | ||
[[Category: Large Structures]] | |||
[[Category: Bailey, S]] | [[Category: Bailey, S]] | ||
[[Category: Eliason, W K]] | [[Category: Eliason, W K]] | ||
Revision as of 11:10, 25 June 2021
Crystal structure of the Thermus aquaticus DnaB monomerCrystal structure of the Thermus aquaticus DnaB monomer
Structural highlights
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 PubMedThe ring-shaped hexameric DnaB helicase unwinds duplex DNA at the replication fork of eubacteria. We have solved the crystal structure of the full-length Thermus aquaticus DnaB monomer, or possibly dimer, at 2.9 A resolution. DnaB is a highly flexible two domain protein. The C-terminal domain exhibits a RecA-like core fold and contains all the conserved sequence motifs that are characteristic of the DnaB helicase family. The N-terminal domain contains an additional helical hairpin that makes it larger than previously appreciated. Several DnaB mutations that modulate its interaction with primase are found in this hairpin. The similarity in the fold of the DnaB N-terminal domain with that of the C-terminal helicase-binding domain (HBD) of the DnaG primase also includes this hairpin. Comparison of hexameric homology models of DnaB with the structure of the papillomavirus E1 helicase suggests the two helicases may function through different mechanisms despite their sharing a common ancestor. The crystal structure of the Thermus aquaticus DnaB helicase monomer.,Bailey S, Eliason WK, Steitz TA Nucleic Acids Res. 2007;35(14):4728-36. Epub 2007 Jul 1. PMID:17606462[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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