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| | <StructureSection load='2e0g' size='340' side='right'caption='[[2e0g]], [[NMR_Ensembles_of_Models | 25 NMR models]]' scene=''> | | <StructureSection load='2e0g' size='340' side='right'caption='[[2e0g]], [[NMR_Ensembles_of_Models | 25 NMR models]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2e0g]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E0G OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2E0G FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2e0g]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Ecoli Ecoli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E0G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2E0G FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dnaA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr> | + | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dnaA ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</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=2e0g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2e0g OCA], [http://pdbe.org/2e0g PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2e0g RCSB], [http://www.ebi.ac.uk/pdbsum/2e0g PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2e0g 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=2e0g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2e0g OCA], [https://pdbe.org/2e0g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2e0g RCSB], [https://www.ebi.ac.uk/pdbsum/2e0g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2e0g ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/DNAA_ECOLI DNAA_ECOLI]] Plays a key role in the initiation and regulation of chromosomal replication. Binds in an ATP-dependent fashion to the origin of replication (oriC) to initiate formation of the DNA replication initiation complex exactly once per cell cycle. Binds the DnaA box (consensus sequence 5'-TTATC[CA]A[CA]A-3'); subsequent binding of DNA polymerase III subunits leads to replisome formation. The DnaA-ATP form converts to DnaA-ADP; once converted to ADP the protein cannot initiate replication, ensuring only 1 round of replication per cell cycle. DnaA can inhibit its own gene expression as well as that of other genes such as dam, rpoH, ftsA and mioC.<ref>PMID:9242693</ref> <ref>PMID:16077105</ref> <ref>PMID:17699754</ref> Also required for replication of plasmid DNA; binds 4 dnaA boxes in the minimal plasmid RK2 replication origin (oriV).<ref>PMID:9242693</ref> <ref>PMID:16077105</ref> <ref>PMID:17699754</ref> | + | [[https://www.uniprot.org/uniprot/DNAA_ECOLI DNAA_ECOLI]] Plays a key role in the initiation and regulation of chromosomal replication. Binds in an ATP-dependent fashion to the origin of replication (oriC) to initiate formation of the DNA replication initiation complex exactly once per cell cycle. Binds the DnaA box (consensus sequence 5'-TTATC[CA]A[CA]A-3'); subsequent binding of DNA polymerase III subunits leads to replisome formation. The DnaA-ATP form converts to DnaA-ADP; once converted to ADP the protein cannot initiate replication, ensuring only 1 round of replication per cell cycle. DnaA can inhibit its own gene expression as well as that of other genes such as dam, rpoH, ftsA and mioC.<ref>PMID:9242693</ref> <ref>PMID:16077105</ref> <ref>PMID:17699754</ref> Also required for replication of plasmid DNA; binds 4 dnaA boxes in the minimal plasmid RK2 replication origin (oriV).<ref>PMID:9242693</ref> <ref>PMID:16077105</ref> <ref>PMID:17699754</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| Structural highlights
Function
[DNAA_ECOLI] Plays a key role in the initiation and regulation of chromosomal replication. Binds in an ATP-dependent fashion to the origin of replication (oriC) to initiate formation of the DNA replication initiation complex exactly once per cell cycle. Binds the DnaA box (consensus sequence 5'-TTATC[CA]A[CA]A-3'); subsequent binding of DNA polymerase III subunits leads to replisome formation. The DnaA-ATP form converts to DnaA-ADP; once converted to ADP the protein cannot initiate replication, ensuring only 1 round of replication per cell cycle. DnaA can inhibit its own gene expression as well as that of other genes such as dam, rpoH, ftsA and mioC.[1] [2] [3] Also required for replication of plasmid DNA; binds 4 dnaA boxes in the minimal plasmid RK2 replication origin (oriV).[4] [5] [6]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
See Also
References
- ↑ Konieczny I, Doran KS, Helinski DR, Blasina A. Role of TrfA and DnaA proteins in origin opening during initiation of DNA replication of the broad host range plasmid RK2. J Biol Chem. 1997 Aug 8;272(32):20173-8. PMID:9242693
- ↑ Riber L, Lobner-Olesen A. Coordinated replication and sequestration of oriC and dnaA are required for maintaining controlled once-per-cell-cycle initiation in Escherichia coli. J Bacteriol. 2005 Aug;187(16):5605-13. PMID:16077105 doi:http://dx.doi.org/10.1128/JB.187.16.5605-5613.2005
- ↑ Keyamura K, Fujikawa N, Ishida T, Ozaki S, Su'etsugu M, Fujimitsu K, Kagawa W, Yokoyama S, Kurumizaka H, Katayama T. The interaction of DiaA and DnaA regulates the replication cycle in E. coli by directly promoting ATP DnaA-specific initiation complexes. Genes Dev. 2007 Aug 15;21(16):2083-99. PMID:17699754 doi:21/16/2083
- ↑ Konieczny I, Doran KS, Helinski DR, Blasina A. Role of TrfA and DnaA proteins in origin opening during initiation of DNA replication of the broad host range plasmid RK2. J Biol Chem. 1997 Aug 8;272(32):20173-8. PMID:9242693
- ↑ Riber L, Lobner-Olesen A. Coordinated replication and sequestration of oriC and dnaA are required for maintaining controlled once-per-cell-cycle initiation in Escherichia coli. J Bacteriol. 2005 Aug;187(16):5605-13. PMID:16077105 doi:http://dx.doi.org/10.1128/JB.187.16.5605-5613.2005
- ↑ Keyamura K, Fujikawa N, Ishida T, Ozaki S, Su'etsugu M, Fujimitsu K, Kagawa W, Yokoyama S, Kurumizaka H, Katayama T. The interaction of DiaA and DnaA regulates the replication cycle in E. coli by directly promoting ATP DnaA-specific initiation complexes. Genes Dev. 2007 Aug 15;21(16):2083-99. PMID:17699754 doi:21/16/2083
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