2ex5: Difference between revisions
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<StructureSection load='2ex5' size='340' side='right' caption='[[2ex5]], [[Resolution|resolution]] 2.20Å' scene=''> | <StructureSection load='2ex5' size='340' side='right' caption='[[2ex5]], [[Resolution|resolution]] 2.20Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2ex5]] is a 4 chain structure | <table><tr><td colspan='2'>[[2ex5]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2EX5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2EX5 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1af5|1af5]], [[1bp7|1bp7]], [[1g9y|1g9y]], [[1g9z|1g9z]], [[1m5x|1m5x]], [[1mow|1mow]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1af5|1af5]], [[1bp7|1bp7]], [[1g9y|1g9y]], [[1g9z|1g9z]], [[1m5x|1m5x]], [[1mow|1mow]]</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=2ex5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ex5 OCA], [http://pdbe.org/2ex5 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2ex5 RCSB], [http://www.ebi.ac.uk/pdbsum/2ex5 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=2ex5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ex5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2ex5 RCSB], [http://www.ebi.ac.uk/pdbsum/2ex5 PDBsum]</span></td></tr> | |||
</table> | </table> | ||
== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/ | [[http://www.uniprot.org/uniprot/DNE1_CHLMO DNE1_CHLMO]] Endonuclease involved in intron homing. Recognizes a degenerate sequence of 17-19 bp to produce a staggered cut 5 bp downstream from the CeLSU.5 intron insertion site. | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 2ex5" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Spiegel, P C]] | [[Category: Spiegel, P C]] | ||
[[Category: Stoddard, B L]] | [[Category: Stoddard, B L]] | ||
Revision as of 05:29, 12 September 2015
Group I Intron-encoded Homing Endonuclease I-CeuI Complexed With DNAGroup I Intron-encoded Homing Endonuclease I-CeuI Complexed With DNA
Structural highlights
Function[DNE1_CHLMO] Endonuclease involved in intron homing. Recognizes a degenerate sequence of 17-19 bp to produce a staggered cut 5 bp downstream from the CeLSU.5 intron insertion site. 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 PubMedHoming endonucleases are highly specific catalysts of DNA strand breaks, leading to the transfer of mobile intervening sequences containing the endonuclease ORF. We have determined the structure and DNA recognition behavior of I-CeuI, a homodimeric LAGLIDADG endonuclease from Chlamydomonas eugametos. This symmetric endonuclease displays unique structural elaborations on its core enzyme fold, and it preferentially cleaves a highly asymmetric target site. This latter property represents an early step, prior to gene fusion, in the generation of asymmetric DNA binding platforms from homodimeric ancestors. The divergence of the sequence, structure, and target recognition behavior of homing endonucleases, as illustrated by this study, leads to the invasion of novel genomic sites by mobile introns during evolution. The structure of I-CeuI homing endonuclease: Evolving asymmetric DNA recognition from a symmetric protein scaffold.,Spiegel PC, Chevalier B, Sussman D, Turmel M, Lemieux C, Stoddard BL Structure. 2006 May;14(5):869-80. PMID:16698548[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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