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3jso

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==Classic Protein With a New Twist: crystal structure of a LexA repressor DNA complex==
==Classic Protein With a New Twist: crystal structure of a LexA repressor DNA complex==
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<StructureSection load='3jso' size='340' side='right' caption='[[3jso]], [[Resolution|resolution]] 2.29&Aring;' scene=''>
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<StructureSection load='3jso' size='340' side='right'caption='[[3jso]], [[Resolution|resolution]] 2.29&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3jso]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3JSO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3JSO FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3jso]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3JSO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3JSO FirstGlance]. <br>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3jsp|3jsp]]</td></tr>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3jsp|3jsp]]</div></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">lexA, exrA, spr, tsl, umuA, b4043, JW4003 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">lexA, exrA, spr, tsl, umuA, b4043, JW4003 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Repressor_lexA Repressor lexA], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.88 3.4.21.88] </span></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Repressor_lexA Repressor lexA], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.88 3.4.21.88] </span></td></tr>
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<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=3jso FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3jso OCA], [http://pdbe.org/3jso PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3jso RCSB], [http://www.ebi.ac.uk/pdbsum/3jso PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3jso ProSAT]</span></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=3jso FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3jso OCA], [https://pdbe.org/3jso PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3jso RCSB], [https://www.ebi.ac.uk/pdbsum/3jso PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3jso ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/LEXA_ECOLI LEXA_ECOLI]] Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. Binds to the 16 bp palindromic sequence 5'-CTGTATATATATACAG-3'. In the presence of single-stranded DNA, RecA interacts with LexA causing an autocatalytic cleavage which disrupts the DNA-binding part of LexA, leading to derepression of the SOS regulon and eventually DNA repair.<ref>PMID:7027255</ref> <ref>PMID:7027256</ref>
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[[https://www.uniprot.org/uniprot/LEXA_ECOLI LEXA_ECOLI]] Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. Binds to the 16 bp palindromic sequence 5'-CTGTATATATATACAG-3'. In the presence of single-stranded DNA, RecA interacts with LexA causing an autocatalytic cleavage which disrupts the DNA-binding part of LexA, leading to derepression of the SOS regulon and eventually DNA repair.<ref>PMID:7027255</ref> <ref>PMID:7027256</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/js/3jso_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/js/3jso_consurf.spt"</scriptWhenChecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
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</StructureSection>
</StructureSection>
[[Category: Ecoli]]
[[Category: Ecoli]]
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[[Category: Large Structures]]
[[Category: Repressor lexA]]
[[Category: Repressor lexA]]
[[Category: Pigli, Y Z]]
[[Category: Pigli, Y Z]]

Revision as of 12:17, 13 October 2021

Classic Protein With a New Twist: crystal structure of a LexA repressor DNA complex

PDB ID 3jso

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