1m3q: Difference between revisions
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==Crystal Structure of hogg1 D268E Mutant with Base-Excised DNA and 8-aminoguanine== | |||
<StructureSection load='1m3q' size='340' side='right' caption='[[1m3q]], [[Resolution|resolution]] 1.90Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1m3q]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M3Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1M3Q FirstGlance]. <br> | |||
==Disease== | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ANG:8-AMINOGUANINE'>ANG</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene><br> | ||
<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=DRZ:3,4-DIHYDROXY-PENTANAL-5-PHOSPHATE'>DRZ</scene></td></tr> | |||
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1ebm|1ebm]], [[1m3h|1m3h]]</td></tr> | |||
<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ogg1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr> | |||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1m3q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m3q OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1m3q RCSB], [http://www.ebi.ac.uk/pdbsum/1m3q PDBsum]</span></td></tr> | |||
<table> | |||
== Disease == | |||
[[http://www.uniprot.org/uniprot/OGG1_HUMAN OGG1_HUMAN]] Defects in OGG1 may be a cause of renal cell carcinoma (RCC) [MIM:[http://omim.org/entry/144700 144700]]. It is a heterogeneous group of sporadic or hereditary carcinoma derived from cells of the proximal renal tubular epithelium. It is subclassified into clear cell renal carcinoma (non-papillary carcinoma), papillary renal cell carcinoma, chromophobe renal cell carcinoma, collecting duct carcinoma with medullary carcinoma of the kidney, and unclassified renal cell carcinoma. | [[http://www.uniprot.org/uniprot/OGG1_HUMAN OGG1_HUMAN]] Defects in OGG1 may be a cause of renal cell carcinoma (RCC) [MIM:[http://omim.org/entry/144700 144700]]. It is a heterogeneous group of sporadic or hereditary carcinoma derived from cells of the proximal renal tubular epithelium. It is subclassified into clear cell renal carcinoma (non-papillary carcinoma), papillary renal cell carcinoma, chromophobe renal cell carcinoma, collecting duct carcinoma with medullary carcinoma of the kidney, and unclassified renal cell carcinoma. | ||
== Function == | |||
[[http://www.uniprot.org/uniprot/OGG1_HUMAN OGG1_HUMAN]] DNA repair enzyme that incises DNA at 8-oxoG residues. Excises 7,8-dihydro-8-oxoguanine and 2,6-diamino-4-hydroxy-5-N-methylformamidopyrimidine (FAPY) from damaged DNA. Has a beta-lyase activity that nicks DNA 3' to the lesion. | |||
== 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/m3/1m3q_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/chain_selection.php?pdb_ID=2ata ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
DNA glycosylase/lyases initiate the repair of damaged nucleobases in the genome by catalyzing excision of aberrant nucleobases and nicking of the lesion-containing DNA strand. Nearly all of these proteins have the unusual property of remaining tightly bound in vitro to the end products of the reaction cascade. We have taken advantage of this property to crystallize and structurally characterize the end product resulting from complete DNA processing by a catalytically active mutant form of human 8-oxoguanine DNA glycosylase (D268E hOgg1). The resulting structure is consistent with the currently accepted catalytic mechanism for the protein. Unexpectedly, however, soaking of a nucleobase analog into the crystals results in religation of the DNA backbone in situ. | |||
Structures of end products resulting from lesion processing by a DNA glycosylase/lyase.,Chung SJ, Verdine GL Chem Biol. 2004 Dec;11(12):1643-9. PMID:15610848<ref>PMID:15610848</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | ==See Also== | ||
*[[DNA | *[[DNA glycosylase|DNA glycosylase]] | ||
== References == | |||
== | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Chung, S J.]] | [[Category: Chung, S J.]] | ||