3u44
From Proteopedia
(Difference between revisions)
| Line 1: | Line 1: | ||
| + | |||
==Crystal structure of AddAB-DNA complex== | ==Crystal structure of AddAB-DNA complex== | ||
<StructureSection load='3u44' size='340' side='right' caption='[[3u44]], [[Resolution|resolution]] 3.20Å' scene=''> | <StructureSection load='3u44' size='340' side='right' caption='[[3u44]], [[Resolution|resolution]] 3.20Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[3u44]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/ | + | <table><tr><td colspan='2'>[[3u44]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_globigii"_migula_1900 "bacillus globigii" migula 1900]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3U44 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3U44 FirstGlance]. <br> |
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3u4q|3u4q]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3u4q|3u4q]]</td></tr> | ||
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">addA, BSU10630 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1423 Bacillus | + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">addA, BSU10630 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1423 "Bacillus globigii" Migula 1900]), addB, BSU10620 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1423 "Bacillus globigii" Migula 1900])</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=3u44 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3u44 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3u44 RCSB], [http://www.ebi.ac.uk/pdbsum/3u44 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=3u44 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3u44 OCA], [http://pdbe.org/3u44 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3u44 RCSB], [http://www.ebi.ac.uk/pdbsum/3u44 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3u44 ProSAT]</span></td></tr> |
</table> | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/ADDA_BACSU ADDA_BACSU]] An essential component of the DNA double-stranded break repair machinery, the heterodimer acts as both an ATP-dependent DNA helicase and an ATP-dependent, dual-direction single-stranded exonuclease. Recognizes the B.subtilis chi site (5'-AGCGG-3') which transforms the enzyme from a helicase which degrades both DNA strands to one with only 5' -> 3' exonuclease activity. This generates a double-stranded DNA with a protruding 3'-terminated single-stranded tail suitable for the initiation of homologous recombination (chi fragment). The AddA nuclease domain in particular is required for chi fragment generation; this subunit has 3' -> 5' nuclease and helicase activity. RecA thread formation during DNA double-strand break repair requires RecJ or AddAB.<ref>PMID:8387145</ref> <ref>PMID:10756102</ref> <ref>PMID:17570399</ref> [[http://www.uniprot.org/uniprot/ADDB_BACSU ADDB_BACSU]] The heterodimer acts as both an ATP-dependent DNA helicase and an ATP-dependent single-stranded exonuclease, acting in both directions. Recognizes the B.subtilis chi site (5'-AGCGG-3') which transforms the enzyme from a helicase which degrades both DNA strands to one with only 5' to 3' exonuclease activity. This generates a double-stranded DNA with a protruding 3'-terminated single-stranded tail suitable for the initiation of homologous recombination (chi fragment). The AddB nuclease domain is not required for chi fragment generation; this subunit has 5' -> 3' nuclease activity. RecA thread formation during DNA double-strand break repair requires RecJ or AddAB.<ref>PMID:8387145</ref> <ref>PMID:10756102</ref> <ref>PMID:17570399</ref> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
| Line 16: | Line 19: | ||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
| + | <div class="pdbe-citations 3u44" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: Bacillus | + | [[Category: Bacillus globigii migula 1900]] |
[[Category: Krajewski, W]] | [[Category: Krajewski, W]] | ||
[[Category: Saikrishnan, K]] | [[Category: Saikrishnan, K]] | ||
Revision as of 15:39, 11 August 2016
Crystal structure of AddAB-DNA complex
| |||||||||||
