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| | <StructureSection load='2o0k' size='340' side='right'caption='[[2o0k]], [[Resolution|resolution]] 2.50Å' scene=''> | | <StructureSection load='2o0k' size='340' side='right'caption='[[2o0k]], [[Resolution|resolution]] 2.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2o0k]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bpt4 Bpt4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2O0K OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2O0K FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2o0k]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_virus_T4 Escherichia virus T4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2O0K OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2O0K 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;'>[[2o0h|2o0h]], [[2o0j|2o0j]]</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">17 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10665 BPT4])</td></tr>
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| | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2o0k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2o0k OCA], [https://pdbe.org/2o0k PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2o0k RCSB], [https://www.ebi.ac.uk/pdbsum/2o0k PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2o0k 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=2o0k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2o0k OCA], [https://pdbe.org/2o0k PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2o0k RCSB], [https://www.ebi.ac.uk/pdbsum/2o0k PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2o0k ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/TERL_BPT4 TERL_BPT4]] Component of the molecular motor that translocates genomic DNA in empty capsid during DNA packaging. Heterodimerizes with small terminase protein to be docked on capsid portal protein. The latter forms a ring in which genomic DNA in translocated into the capsid. May have or induce an endonuclease activity to cleave the genome concatemer after encapsidation (By similarity).
| + | [https://www.uniprot.org/uniprot/TERL_BPT4 TERL_BPT4] Component of the molecular motor that translocates genomic DNA in empty capsid during DNA packaging. Heterodimerizes with small terminase protein to be docked on capsid portal protein. The latter forms a ring in which genomic DNA in translocated into the capsid. May have or induce an endonuclease activity to cleave the genome concatemer after encapsidation (By similarity). |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Bpt4]] | + | [[Category: Escherichia virus T4]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Rossmann, M G]] | + | [[Category: Rossmann MG]] |
| - | [[Category: Sun, S]] | + | [[Category: Sun S]] |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Nucleotide-binding fold]]
| + | |
| Structural highlights
Function
TERL_BPT4 Component of the molecular motor that translocates genomic DNA in empty capsid during DNA packaging. Heterodimerizes with small terminase protein to be docked on capsid portal protein. The latter forms a ring in which genomic DNA in translocated into the capsid. May have or induce an endonuclease activity to cleave the genome concatemer after encapsidation (By similarity).
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
Packaging the viral genome into empty procapsids, an essential event in the life cycle of tailed bacteriophages and some eukaryotic viruses, is a process that shares features with chromosome assembly. Most viral procapsids possess a special vertex containing a dodecameric portal protein that is used for entry and exit of the viral genome. The portal and an ATPase are parts of the genome-packaging machine. The ATPase is required to provide energy for translocation and compaction of the negative charges on the genomic DNA. Here we report the atomic structure of the ATPase component in a phage DNA-packaging machine. The bacteriophage T4 ATPase has the greatest similarity to monomeric helicases, suggesting that the genome is translocated by an inchworm mechanism. The similarity of the packaging machines in the double-stranded DNA (dsDNA) bacteriophage T4 and dsRNA bacteriophage varphi12 is consistent with the evolution of many virions from a common ancestor.
The structure of the ATPase that powers DNA packaging into bacteriophage T4 procapsids.,Sun S, Kondabagil K, Gentz PM, Rossmann MG, Rao VB Mol Cell. 2007 Mar 23;25(6):943-9. PMID:17386269[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Sun S, Kondabagil K, Gentz PM, Rossmann MG, Rao VB. The structure of the ATPase that powers DNA packaging into bacteriophage T4 procapsids. Mol Cell. 2007 Mar 23;25(6):943-9. PMID:17386269 doi:10.1016/j.molcel.2007.02.013
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