|
|
| Line 3: |
Line 3: |
| | <StructureSection load='2zxo' size='340' side='right'caption='[[2zxo]], [[Resolution|resolution]] 2.50Å' scene=''> | | <StructureSection load='2zxo' size='340' side='right'caption='[[2zxo]], [[Resolution|resolution]] 2.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2zxo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thet8 Thet8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZXO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ZXO FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2zxo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus_HB8 Thermus thermophilus HB8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZXO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ZXO FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2zxp|2zxp]], [[2zxr|2zxr]]</div></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]] 2.5Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">recj, TTHA1167 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=300852 THET8])</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=2zxo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zxo OCA], [https://pdbe.org/2zxo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2zxo RCSB], [https://www.ebi.ac.uk/pdbsum/2zxo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2zxo 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=2zxo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zxo OCA], [https://pdbe.org/2zxo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2zxo RCSB], [https://www.ebi.ac.uk/pdbsum/2zxo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2zxo ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/RECJ_THET8 RECJ_THET8]] Single-stranded-DNA-specific exonuclease acting in a 5' to 3' direction; has no detectable activity on ssRNA.<ref>PMID:21087930</ref>
| + | [https://www.uniprot.org/uniprot/RECJ_THET8 RECJ_THET8] Single-stranded-DNA-specific exonuclease acting in a 5' to 3' direction; has no detectable activity on ssRNA.<ref>PMID:21087930</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| Line 37: |
Line 36: |
| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Thet8]] | + | [[Category: Thermus thermophilus HB8]] |
| - | [[Category: Kitamura, Y]] | + | [[Category: Kitamura Y]] |
| - | [[Category: Kuramitsu, S]] | + | [[Category: Kuramitsu S]] |
| - | [[Category: Masui, R]] | + | [[Category: Masui R]] |
| - | [[Category: Nakagawa, N]] | + | [[Category: Nakagawa N]] |
| - | [[Category: Wakamatsu, T]] | + | [[Category: Wakamatsu T]] |
| - | [[Category: Dna repair]]
| + | |
| - | [[Category: Exonuclease]]
| + | |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Nuclease]]
| + | |
| - | [[Category: Single-stranded dna]]
| + | |
| Structural highlights
Function
RECJ_THET8 Single-stranded-DNA-specific exonuclease acting in a 5' to 3' direction; has no detectable activity on ssRNA.[1]
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
RecJ is a single-stranded DNA (ssDNA)-specific 5'-3' exonuclease that plays an important role in DNA repair and recombination. To elucidate how RecJ achieves its high specificity for ssDNA, we determined the entire structures of RecJ both in a ligand-free form and in a complex with Mn(2+) or Mg(2+) by x-ray crystallography. The entire RecJ consists of four domains that form a molecule with an O-like structure. One of two newly identified domains had structural similarities to an oligonucleotide/oligosaccharide-binding (OB) fold. The OB fold domain alone could bind to DNA, indicating that this domain is a novel member of the OB fold superfamily. The truncated RecJ containing only the core domain exhibited much lower affinity for the ssDNA substrate compared with intact RecJ. These results support the hypothesis that these structural features allow specific binding of RecJ to ssDNA. In addition, the structure of the RecJ-Mn(2+) complex suggests that the hydrolysis reaction catalyzed by RecJ proceeds through a two-metal ion mechanism.
Structure of RecJ exonuclease defines its specificity for single-stranded DNA.,Wakamatsu T, Kitamura Y, Kotera Y, Nakagawa N, Kuramitsu S, Masui R J Biol Chem. 2010 Mar 26;285(13):9762-9. Epub 2010 Feb 2. PMID:20129927[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Wakamatsu T, Kim K, Uemura Y, Nakagawa N, Kuramitsu S, Masui R. Role of RecJ-like protein with 5'-3' exonuclease activity in oligo(deoxy)nucleotide degradation. J Biol Chem. 2011 Jan 28;286(4):2807-16. doi: 10.1074/jbc.M110.161596. Epub 2010 , Nov 18. PMID:21087930 doi:http://dx.doi.org/10.1074/jbc.M110.161596
- ↑ Wakamatsu T, Kitamura Y, Kotera Y, Nakagawa N, Kuramitsu S, Masui R. Structure of RecJ exonuclease defines its specificity for single-stranded DNA. J Biol Chem. 2010 Mar 26;285(13):9762-9. Epub 2010 Feb 2. PMID:20129927 doi:10.1074/jbc.M109.096487
|
