G P Roberts
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Explore the profile of G P Roberts including associated specialties, affiliations and a list of published articles.
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127
Citations
2293
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Recent Articles
11.
Youn H, Kerby R, Thorsteinsson M, Conrad M, Staples C, Serate J, et al.
J Biol Chem
. 2001 Sep;
276(45):41603-10.
PMID: 11551932
CooA, a CO-sensing homodimeric transcription activator from Rhodospirillum rubrum, undergoes a conformational change in response to CO binding to its heme prosthetic group that allows it to bind specific DNA...
12.
Antharavally B, Poyner R, Zhang Y, Roberts G, Ludden P
J Bacteriol
. 2001 Sep;
183(19):5743-6.
PMID: 11544238
Site-directed mutagenesis of the draG gene was used to generate altered forms of dinitrogenase reductase-activating glycohydrolase (DRAG) with D123A, H142L, H158N, D243G, and E279R substitutions. The amino acid residues H142...
13.
Roberts G, Thorsteinsson M, Kerby R, Lanzilotta W, Poulos T
Prog Nucleic Acid Res Mol Biol
. 2001 Aug;
67:35-63.
PMID: 11525385
CooA, the heme-containing carbon monoxide (CO) sensor from the bacterium Rhodospirillum rubrum, is a transcriptional factor that activates expression of certain genes in response to CO. As with other heme...
14.
Leduc J, Thorsteinsson M, Gaal T, Roberts G
J Biol Chem
. 2001 Aug;
276(43):39968-73.
PMID: 11522788
CooA is a CO-sensing protein that activates the transcription of genes encoding the CO-oxidation (coo) regulon, whose polypeptide products are required for utilizing CO as an energy source in Rhodospirillum...
15.
Thorsteinsson M, Kerby R, Youn H, Conrad M, Serate J, Staples C, et al.
J Biol Chem
. 2001 May;
276(29):26807-13.
PMID: 11359778
CooA, the carbon monoxide-sensing transcription factor from Rhodospirillum rubrum, binds CO at a reduced (Fe(II)) heme moiety with resulting conformational changes that promote DNA binding. In this study, we report...
16.
Zhang Y, Pohlmann E, Halbleib C, Ludden P, Roberts G
J Bacteriol
. 2001 Feb;
183(5):1610-20.
PMID: 11160092
Reversible ADP-ribosylation of dinitrogenase reductase, catalyzed by the dinitrogenase reductase ADP-ribosyl transferase-dinitrogenase reductase-activating glycohydrolase (DRAT-DRAG) regulatory system, has been characterized in Rhodospirillum rubrum and other nitrogen-fixing bacteria. To investigate the...
17.
Lanzilotta W, Schuller D, Thorsteinsson M, Kerby R, Roberts G, Poulos T
Nat Struct Biol
. 2000 Oct;
7(10):876-80.
PMID: 11017196
CooA is a homodimeric transcription factor that belongs to the catabolite activator protein (CAP) family. Binding of CO to the heme groups of CooA leads to the transcription of genes...
18.
Thorsteinsson M, Kerby R, Conrad M, Youn H, Staples C, Lanzilotta W, et al.
J Biol Chem
. 2000 Sep;
275(50):39332-8.
PMID: 11007793
CooA, the carbon monoxide-sensing transcription factor from Rhodospirillum rubrum, binds CO through a heme moiety resulting in conformational changes that promote DNA binding. The crystal structure shows that the N-terminal...
19.
Thorsteinsson M, Kerby R, Roberts G
Biochemistry
. 2000 Jul;
39(28):8284-90.
PMID: 10889037
CooA is a carbon monoxide- (CO-) sensing homodimeric heme protein that activates the transcription of genes required for the anaerobic oxidation of CO to CO(2) in the phototrophic bacterium Rhodospirillum...
20.
Halbleib C, Zhang Y, Roberts G, Ludden P
J Bacteriol
. 2000 Jun;
182(13):3681-7.
PMID: 10850982
The redox state of nitrogenase Fe protein is shown to affect regulation of ADP-ribosylation in Klebsiella pneumoniae strains transformed by plasmids carrying dra genes from Rhodospirillum rubrum. The dra operon...