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3gkl

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==Following evolutionary paths to high affinity and selectivity protein-protein interactions using Colicin7 and Immunity proteins==
==Following evolutionary paths to high affinity and selectivity protein-protein interactions using Colicin7 and Immunity proteins==
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<StructureSection load='3gkl' size='340' side='right' caption='[[3gkl]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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<StructureSection load='3gkl' size='340' side='right'caption='[[3gkl]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3gkl]] is a 4 chain structure with 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=3GKL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3GKL FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3gkl]] 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=3GKL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3GKL FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3gjn|3gjn]]</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">colE7, cea ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]), imm, ceiE9 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</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=3gkl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3gkl OCA], [https://pdbe.org/3gkl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3gkl RCSB], [https://www.ebi.ac.uk/pdbsum/3gkl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3gkl ProSAT]</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=3gkl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3gkl OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3gkl RCSB], [http://www.ebi.ac.uk/pdbsum/3gkl PDBsum]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/CEA7_ECOLX CEA7_ECOLX]] This plasmid-coded bactericidal protein is an endonuclease active on both single- and double-stranded DNA but with undefined specificity. Colicins are polypeptide toxins produced by and active against E.coli and closely related bacteria. [[http://www.uniprot.org/uniprot/IMM9_ECOLX IMM9_ECOLX]] This protein is able to protect a cell, which harbors the plasmid ColE9 encoding colicin E9, against colicin E9, it binds specifically to the DNase-type colicin and inhibits its bactericidal activity.
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[https://www.uniprot.org/uniprot/CEA7_ECOLX CEA7_ECOLX] This plasmid-coded bactericidal protein is an endonuclease active on both single- and double-stranded DNA but with undefined specificity. Colicins are polypeptide toxins produced by and active against E.coli and closely related bacteria.
== 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/gk/3gkl_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gk/3gkl_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>
</jmolCheckbox>
</jmolCheckbox>
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</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/chain_selection.php?pdb_ID=2ata ConSurf].
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</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=3gkl ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
==See Also==
==See Also==
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*[[Colicin|Colicin]]
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*[[Colicin 3D structures|Colicin 3D structures]]
*[[Colicin Immunity Protein|Colicin Immunity Protein]]
*[[Colicin Immunity Protein|Colicin Immunity Protein]]
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*[[Colicin Immunity Protein 7|Colicin Immunity Protein 7]]
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*[[Colicin immunity protein 3D structures|Colicin immunity protein 3D structures]]
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*[[Colicin Immunity Protein 9|Colicin Immunity Protein 9]]
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*[[Directed evolution|Directed evolution]]
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*[[Mutant immunity protein 9 (variant R12-13)|Mutant immunity protein 9 (variant R12-13)]]
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*[[Mutant immunity protein 9 (variant R12-2)|Mutant immunity protein 9 (variant R12-2)]]
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Dym, O]]
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[[Category: Large Structures]]
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[[Category: ISPC, Israel Structural Proteomics Center]]
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[[Category: Dym O]]
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[[Category: Tawfik, D S]]
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[[Category: Tawfik DS]]
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[[Category: Antibiotic]]
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[[Category: Antimicrobial]]
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[[Category: Bacteriocin]]
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[[Category: Bacteriocin immunity]]
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[[Category: Endonuclease]]
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[[Category: Hydrolase]]
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[[Category: Metal-binding]]
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[[Category: Nuclease]]
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[[Category: Protein-protein complex]]
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[[Category: Structural genomic]]
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Following evolutionary paths to high affinity and selectivity protein-protein interactions using Colicin7 and Immunity proteins

PDB ID 3gkl

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