2amj: Difference between revisions
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|PDB= 2amj |SIZE=350|CAPTION= <scene name='initialview01'>2amj</scene>, resolution 1.80Å | |PDB= 2amj |SIZE=350|CAPTION= <scene name='initialview01'>2amj</scene>, resolution 1.80Å | ||
|SITE= | |SITE= | ||
|LIGAND= | |LIGAND= <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene> | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= mdaB, mda66 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id= | |GENE= mdaB, mda66 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83334 Escherichia coli O157:H7]) | ||
|DOMAIN= | |||
|RELATEDENTRY=[[2b3d|2B3D]] | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2amj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2amj OCA], [http://www.ebi.ac.uk/pdbsum/2amj PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2amj RCSB]</span> | |||
}} | }} | ||
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==About this Structure== | ==About this Structure== | ||
2AMJ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/ | 2AMJ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli_o157:h7 Escherichia coli o157:h7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AMJ OCA]. | ||
==Reference== | ==Reference== | ||
Modulator of drug activity B from Escherichia coli: crystal structure of a prokaryotic homologue of DT-diaphorase., Adams MA, Jia Z, J Mol Biol. 2006 Jun 2;359(2):455-65. Epub 2006 Apr 7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16630630 16630630] | Modulator of drug activity B from Escherichia coli: crystal structure of a prokaryotic homologue of DT-diaphorase., Adams MA, Jia Z, J Mol Biol. 2006 Jun 2;359(2):455-65. Epub 2006 Apr 7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16630630 16630630] | ||
[[Category: Escherichia coli | [[Category: Escherichia coli o157:h7]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Adams, M A.]] | [[Category: Adams, M A.]] | ||
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[[Category: structural genomic]] | [[Category: structural genomic]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 01:54:33 2008'' | ||
Revision as of 01:54, 31 March 2008
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| , resolution 1.80Å | |||||||
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| Ligands: | |||||||
| Gene: | mdaB, mda66 (Escherichia coli O157:H7) | ||||||
| Related: | 2B3D
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal Structure of Modulator of Drug Activity B from Escherichia coli O157:H7
OverviewOverview
Modulator of drug activity B (MdaB) is a putative member of the DT-diaphorase family of NAD(P)H:oxidoreductases that afford cellular protection against quinonoid compounds. While there have been extensive investigations of mammalian homologues, putative prokaryotic members of this enzyme family have received little attention. The three-dimensional crystal structure of apo-MdaB reported herein exhibits significant structural similarity to a number of flavoproteins, including the mammalian DT-diaphorases. We have shown by mass spectrometry that the endogenously associated cofactor is flavin adenine dinucleotide and we present here the structure of MdaB in complex with this compound. Growth of Escherichia coli carrying null mutations in the genes encoding MdaB or quinol monooxygenase, the gene for which shares the mdaB promoter, were not affected by the presence of menadione. However, over-expression of recombinant quinol monooxygenase conferred a state of resistance against both tetracycline and adriamycin. This work suggests that the redox cycle formed by these proteins protects E. coli from the toxic effects of polyketide compounds rather than the oxidative stress of menadione alone.
About this StructureAbout this Structure
2AMJ is a Single protein structure of sequence from Escherichia coli o157:h7. Full crystallographic information is available from OCA.
ReferenceReference
Modulator of drug activity B from Escherichia coli: crystal structure of a prokaryotic homologue of DT-diaphorase., Adams MA, Jia Z, J Mol Biol. 2006 Jun 2;359(2):455-65. Epub 2006 Apr 7. PMID:16630630
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