8dw4: Difference between revisions
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New page: '''Unreleased structure''' The entry 8dw4 is ON HOLD Authors: Demir, M., Russelburg, L.P., Horvath, M.P., David, S.S. Description: DNA glycosylase MutY variant N146S in complex with DN... |
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==Glycosylase MutY variant N146S in complex with DNA containing d(8-oxo-G) paired with an abasic site product (AP) generated by the enzyme in crystals by removal of calcium== | |||
<StructureSection load='8dw4' size='340' side='right'caption='[[8dw4]], [[Resolution|resolution]] 2.49Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[8dw4]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8DW4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8DW4 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.49Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=8OG:8-OXO-2-DEOXY-GUANOSINE-5-MONOPHOSPHATE'>8OG</scene>, <scene name='pdbligand=AAB:2-DEOXY-RIBOFURANOSE-5-MONOPHOSPHATE'>AAB</scene>, <scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8dw4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8dw4 OCA], [https://pdbe.org/8dw4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8dw4 RCSB], [https://www.ebi.ac.uk/pdbsum/8dw4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8dw4 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/MUTY_GEOSE MUTY_GEOSE] Base excision repair (BER) glycosylase that initiates repair of A:oxoG to C:G by removing the inappropriately paired adenine base from the DNA backbone, generating an abasic site product (PubMed:25995449) (PubMed:14961129). 8-oxoguanine (oxoG) is a genotoxic DNA lesion resulting from oxidation of guanine; this residue is misread by replicative DNA polymerases, that insert adenine instead of cytosine opposite the oxidized damaged base. Shows a powerful dicrimination of A versus C, since it does not cleave cytosine in oxoG:C pairs (PubMed:25995449). May also be able to remove adenine from A:G mispairs, although this activity may not be physiologically relevant (PubMed:14961129).<ref>PMID:25995449</ref> <ref>PMID:14961129</ref> | |||
==See Also== | |||
*[[DNA glycosylase 3D structures|DNA glycosylase 3D structures]] | |||
== References == | |||
[[Category: | <references/> | ||
[[Category: | __TOC__ | ||
[[Category: Demir | </StructureSection> | ||
[[Category: | [[Category: Geobacillus stearothermophilus]] | ||
[[Category: Russelburg | [[Category: Large Structures]] | ||
[[Category: Synthetic construct]] | |||
[[Category: David SS]] | |||
[[Category: Demir M]] | |||
[[Category: Horvath MP]] | |||
[[Category: Russelburg LP]] | |||
Latest revision as of 13:50, 1 July 2026
Glycosylase MutY variant N146S in complex with DNA containing d(8-oxo-G) paired with an abasic site product (AP) generated by the enzyme in crystals by removal of calcium
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