1njf: Difference between revisions

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-[[Image:1njf.gif|left|200px]]
- {{Structure
+==Nucleotide bound form of an isolated E. coli clamp loader gamma subunit==
-|PDB= 1njf |SIZE=350|CAPTION= <scene name='initialview01'>1njf</scene>, resolution 2.30&Aring;
+<StructureSection load='1njf' size='340' side='right'caption='[[1njf]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
-|SITE=
+== Structural highlights ==
-|LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>, <scene name='pdbligand=ATG:PHOSPHOTHIOPHOSPHORIC+ACID-ADENYLATE+ESTER'>ATG</scene> and <scene name='pdbligand=ADP:ADENOSINE-5&#39;-DIPHOSPHATE'>ADP</scene>
+<table><tr><td colspan='2'>[[1njf]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NJF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NJF FirstGlance]. <br>
-|ACTIVITY= [http://en.wikipedia.org/wiki/DNA-directed_DNA_polymerase DNA-directed DNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.7 2.7.7.7]
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
-|GENE= DnaX ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=AGS:PHOSPHOTHIOPHOSPHORIC+ACID-ADENYLATE+ESTER'>AGS</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=1njf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1njf OCA], [https://pdbe.org/1njf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1njf RCSB], [https://www.ebi.ac.uk/pdbsum/1njf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1njf ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/DPO3X_ECOLI DPO3X_ECOLI] DNA polymerase III is a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria. This DNA polymerase also exhibits 3' to 5' exonuclease activity.  Isoform tau: serves as a scaffold to help in the dimerization of the core complex.  Isoform gamma: seems to interact with the delta subunit. to transfer the beta subunit on the DNA.
+== Evolutionary Conservation ==
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nj/1njf_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
+  </jmolCheckbox>
+</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1njf ConSurf].
+<div style="clear:both"></div>
-'''Nucleotide bound form of an isolated E. coli clamp loader gamma subunit'''
+==See Also==
+*[[DNA polymerase 3D structures|DNA polymerase 3D structures]]
+__TOC__
-==Overview==
+</StructureSection>
-Sliding clamps are loaded onto DNA by ATP-driven clamp loader complexes. The structure of the E. coli clamp loader in a nucleotide-free state has been determined previously. We now report crystal structures of a truncated form of the isolated gamma-ATPase subunit, gamma(1-243), of the E. coli clamp loader, in nucleotide-free and bound forms. The gamma subunit adopts a defined conformation when empty, in which the nucleotide binding site is blocked. The binding of either ATPgammaS or ADP, which are shown to bind with equal affinity to gamma(1-243), induces a change in the relative orientation of the two domains such that nucleotides can be accommodated. This change would break one of the gamma:gamma interfaces seen in the empty clamp loader complex, and may represent one step in the activation process.
-==About this Structure==
-NJF is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NJF OCA].
-==Reference==
-Nucleotide-induced conformational changes in an isolated Escherichia coli DNA polymerase III clamp loader subunit., Podobnik M, Weitze TF, O'Donnell M, Kuriyan J, Structure. 2003 Mar;11(3):253-63. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12623013 12623013]
-[[Category: DNA-directed DNA polymerase]]
 [[Category: Escherichia coli]]
-[[Category: Single protein]]
+[[Category: Large Structures]]
-[[Category: Donnell, M O.]]
+[[Category: Kuriyan J]]
-[[Category: Kuriyan, J.]]
+[[Category: O'Donnell M]]
-[[Category: Podobnik, M.]]
+[[Category: Podobnik M]]
-[[Category: Weitze, T F.]]
+[[Category: Weitze TF]]
-[[Category: ADP]]
-[[Category: ATG]]
-[[Category: ZN]]
-[[Category: aaa+ atpase domain]]
-[[Category: protein-nucleotide complex]]
-[[Category: rossman-like fold]]
-[[Category: sensor 1]]
-[[Category: sensor 2]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 12:54:46 2008''