8amu
From Proteopedia
(Difference between revisions)
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[8amu]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_agalactiae Streptococcus agalactiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8AMU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8AMU FirstGlance]. <br> | <table><tr><td colspan='2'>[[8amu]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_agalactiae Streptococcus agalactiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8AMU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8AMU FirstGlance]. <br> | ||
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</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]] 3Å</td></tr> |
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></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=8amu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8amu OCA], [https://pdbe.org/8amu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8amu RCSB], [https://www.ebi.ac.uk/pdbsum/8amu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8amu ProSAT]</span></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=8amu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8amu OCA], [https://pdbe.org/8amu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8amu RCSB], [https://www.ebi.ac.uk/pdbsum/8amu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8amu ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[https://www.uniprot.org/uniprot/REPB_STRAG REPB_STRAG] Is essential for plasmid replication. Nicks the positive strand at the plus origin of replication. | [https://www.uniprot.org/uniprot/REPB_STRAG REPB_STRAG] Is essential for plasmid replication. Nicks the positive strand at the plus origin of replication. | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | DNA replication is essential to all living organisms as it ensures the fidelity of genetic material for the next generation of dividing cells. One of the simplest replication initiation mechanisms is the rolling circle replication. In the streptococcal plasmid pMV158, which confers antibiotic resistance to tetracycline, replication initiation is catalysed by RepB protein. The RepB N-terminal domain or origin binding domain binds to the recognition sequence (bind locus) of the double-strand origin of replication and cleaves one DNA strand at a specific site within the nic locus. Using biochemical and crystallographic analyses, here we show how the origin binding domain recognises and binds to the bind locus using structural elements removed from the active site, namely the recognition alpha helix, and a beta-strand that organises upon binding. A new hexameric structure of full-length RepB that highlights the great flexibility of this protein is presented, which could account for its ability to perform different tasks, namely bind to two distinct loci and cleave one strand of DNA at the plasmid origin. | ||
| - | |||
| - | Structures of pMV158 replication initiator RepB with and without DNA reveal a flexible dual-function protein.,Machon C, Ruiz-Maso JA, Amodio J, Boer DR, Bordanaba-Ruiseco L, Bury K, Konieczny I, Del Solar G, Coll M Nucleic Acids Res. 2023 Jan 23:gkac1271. doi: 10.1093/nar/gkac1271. PMID:36688326<ref>PMID:36688326</ref> | ||
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 8amu" style="background-color:#fffaf0;"></div> | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
Current revision
RepB pMV158 OBD domain bound to DDR region
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