3khb: Difference between revisions
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{{STRUCTURE_3khb| PDB=3khb | SCENE= }} | {{STRUCTURE_3khb| PDB=3khb | SCENE= }} | ||
===Crystal structure of Escherichia coli AlkB with Co(II) and 2-OG=== | ===Crystal structure of Escherichia coli AlkB with Co(II) and 2-OG=== | ||
{{ABSTRACT_PUBMED_20084272}} | |||
==Function== | |||
[[http://www.uniprot.org/uniprot/ALKB_ECOLI ALKB_ECOLI]] Dioxygenase that repairs alkylated DNA and RNA containing 3-methylcytosine or 1-methyladenine by oxidative demethylation. Has highest activity towards 3-methylcytosine. Has lower activity towards alkylated DNA containing ethenoadenine, and no detectable activity towards 1-methylguanine or 3-methylthymine. Accepts double-stranded and single-stranded substrates. Requires molecular oxygen, alpha-ketoglutarate and iron. Provides extensive resistance to alkylating agents such as MMS and DMS (SN2 agents), but not to MMNG and MNU (SN1 agents).<ref>PMID:12226668</ref> <ref>PMID:12594517</ref> <ref>PMID:16482161</ref> <ref>PMID:19706517</ref> <ref>PMID:21068844</ref> <ref>PMID:20084272</ref> | |||
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==About this Structure== | ==About this Structure== | ||
[[3khb]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli_k-12 Escherichia coli k-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KHB OCA]. | |||
==Reference== | ==Reference== | ||
<ref group="xtra">PMID: | <ref group="xtra">PMID:020084272</ref><references group="xtra"/><references/> | ||
[[Category: Escherichia coli k-12]] | [[Category: Escherichia coli k-12]] | ||
[[Category: Holland, P J.]] | [[Category: Holland, P J.]] | ||
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[[Category: Metal-binding]] | [[Category: Metal-binding]] | ||
[[Category: Oxidoreductase]] | [[Category: Oxidoreductase]] | ||