1b7e: Difference between revisions
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==TRANSPOSASE INHIBITOR== | ==TRANSPOSASE INHIBITOR== | ||
<StructureSection load='1b7e' size='340' side='right' caption='[[1b7e]], [[Resolution|resolution]] 2.90Å' scene=''> | <StructureSection load='1b7e' size='340' side='right' caption='[[1b7e]], [[Resolution|resolution]] 2.90Å' scene=''> | ||
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<table><tr><td colspan='2'>[[1b7e]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1B7E OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1B7E FirstGlance]. <br> | <table><tr><td colspan='2'>[[1b7e]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1B7E OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1B7E FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=TPT:2,2 6,2-TERPYRIDINE+PLATINUM(II)+CHLORIDE'>TPT</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=TPT:2,2 6,2-TERPYRIDINE+PLATINUM(II)+CHLORIDE'>TPT</scene></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=1b7e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1b7e OCA], [http://pdbe.org/1b7e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1b7e RCSB], [http://www.ebi.ac.uk/pdbsum/1b7e PDBsum]</span></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=1b7e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1b7e OCA], [http://pdbe.org/1b7e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1b7e RCSB], [http://www.ebi.ac.uk/pdbsum/1b7e PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1b7e ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
Revision as of 14:09, 22 November 2017
TRANSPOSASE INHIBITORTRANSPOSASE INHIBITOR
Structural highlights
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 PubMedTransposon Tn5 employs a unique means of self-regulation by expressing a truncated version of the transposase enzyme that acts as an inhibitor. The inhibitor protein differs from the full-length transposase only by the absence of the first 55 N-terminal amino acid residues. It contains the catalytic active site of transposase and a C-terminal domain involved in protein-protein interactions. The three-dimensional structure of Tn5 inhibitor determined to 2.9-A resolution is reported here. A portion of the protein fold of the catalytic core domain is similar to the folds of human immunodeficiency virus-1 integrase, avian sarcoma virus integrase, and bacteriophage Mu transposase. The Tn5 inhibitor contains an insertion that extends the beta-sheet of the catalytic core from 5 to 9 strands. All three of the conserved residues that make up the "DDE" motif of the active site are visible in the structure. An arginine residue that is strictly conserved among the IS4 family of bacterial transposases is present at the center of the active site, suggesting a catalytic motif of "DDRE." A novel C-terminal domain forms a dimer interface across a crystallographic 2-fold axis. Although this dimer represents the structure of the inhibited complex, it provides insight into the structure of the synaptic complex. The three-dimensional structure of a Tn5 transposase-related protein determined to 2.9-A resolution.,Davies DR, Mahnke Braam L, Reznikoff WS, Rayment I J Biol Chem. 1999 Apr 23;274(17):11904-13. PMID:10207011[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
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