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Gary Roberts

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Rhodospirillum rubrum

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Physiology

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TOP 3
Robert L Kerby; Gary P Roberts
Burkholderia xenovorans RcoM(Bx)-1, a transcriptional regulator system for sensing low and persistent levels of carbon monoxide.
Aaron T Smith; Katherine M Freeman; Robert L Kerby; Katherine A Marvin; Gary P Roberts; Judith N Burstyn
Identification of Cys94 as the distal ligand to the Fe(III) heme in the transcriptional regulator RcoM-2 from Burkholderia xenovorans.
J Serate; Otto Berg; Gary P Roberts; Hwan Youn
Ligand responses of Vfr, the virulence factor regulator from Pseudomonas aeruginosa.

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All Publications

2012: Robert L Kerby; Gary P Roberts
Burkholderia xenovorans RcoM(Bx)-1, a transcriptional regulator system for sensing low and persistent levels of carbon monoxide.
Journal of bacteriology 2012;194(21):5803-16.
2012: Aaron T Smith; Katherine M Freeman; Robert L Kerby; Katherine A Marvin; Gary P Roberts; Judith N Burstyn
Identification of Cys94 as the distal ligand to the Fe(III) heme in the transcriptional regulator RcoM-2 from Burkholderia xenovorans.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 2012;17(7):1071-82.
2011: J Serate; Otto Berg; Gary P Roberts; Hwan Youn
Ligand responses of Vfr, the virulence factor regulator from Pseudomonas aeruginosa.
Journal of bacteriology 2011;193(18):4859-68.
2011: Di Wang; Yaoping Zhang; Jilun Li; Edward L Pohlmann; Gary P Roberts
The poor growth of Rhodospirillum rubrum mutants lacking RubisCO is due to the accumulation of ribulose-1,5-bisphosphate.
Journal of bacteriology 2011;193(13):3293-303.
2011: Robert L Kerby; Gary P Roberts
Sustaining N2-dependent growth in the presence of CO.
Journal of bacteriology 2011;193(3):774-7.
2010: Yaoping Zhang; Edward L Pohlmann; J Serate; Mary C Conrad; Gary P Roberts
Mutagenesis and functional characterization of the four domains of GlnD, a bifunctional nitrogen sensor protein.
Journal of bacteriology 2010;192(11):2711-21.
2009: Jason L Leduc; Gary P Roberts
Cyclic di-GMP allosterically inhibits the CRP-like protein (Clp) of Xanthomonas axonopodis pv. citri.
Journal of bacteriology 2009;191(22):7121-2.
2009: Yaoping Zhang; Edward L Pohlmann; Gary P Roberts
Effect of perturbation of ATP level on the activity and regulation of nitrogenase in Rhodospirillum rubrum.
Journal of bacteriology 2009;191(17):5526-37.
2008: Katherine A Marvin; Robert L Kerby; Hwan Youn; Gary P Roberts; Judith N Burstyn
The transcription regulator RcoM-2 from Burkholderia xenovorans is a cysteine-ligated hemoprotein that undergoes a redox-mediated ligand switch.
Biochemistry 2008;47(34):9016-28.
2008: Hwan Youn; Junseock Koh; Gary P Roberts
Two-state allosteric modeling suggests protein equilibrium as an integral component for cyclic AMP (cAMP) specificity in the cAMP receptor protein of Escherichia coli.
Journal of bacteriology 2008;190(13):4532-40.
2008: Robert L Kerby; Hwan Youn; Gary P Roberts
RcoM: a new single-component transcriptional regulator of CO metabolism in bacteria.
Journal of bacteriology 2008;190(9):3336-43.
2007: Mohammed Ibrahim; Michael Kuchinskas; Hwan Youn; Robert L Kerby; Gary P Roberts; Thomas L Poulos; Thomas G Spiro
Mechanism of the CO-sensing heme protein CooA: new insights from the truncated heme domain and UVRR spectroscopy.
Journal of inorganic biochemistry 2007;101(11-12):1776-85.
2007: David M Wolfe; Yaoping Zhang; Gary P Roberts
Specificity and regulation of interaction between the PII and AmtB1 proteins in Rhodospirillum rubrum.
Journal of bacteriology 2007;189(19):6861-9.
2007: Mandula Borjigin; Huiying Li; Nicholas D Lanz; Robert L Kerby; Gary P Roberts; Thomas L Poulos
Structure-based hypothesis on the activation of the CO-sensing transcription factor CooA.
Acta crystallographica. Section D, Biological crystallography 2007;63(Pt 3):282-7.
2007: Hwan Youn; Robert L Kerby; Junseock Koh; Gary P Roberts
A C-helix residue, Arg-123, has important roles in both the active and inactive forms of the cAMP receptor protein.
The Journal of biological chemistry 2007;282(6):3632-9.
2007: Robert W Clark; Hwan Youn; Andrea J Lee; Gary P Roberts; Judith N Burstyn
DNA binding by an imidazole-sensing CooA variant is dependent on the heme redox state.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 2007;12(2):139-46.
2006: Mohammed Ibrahim; Robert L Kerby; Mrinalini Puranik; Ingar H Wasbotten; Hwan Youn; Gary P Roberts; Thomas G Spiro
Heme displacement mechanism of CooA activation: mutational and Raman spectroscopic evidence.
The Journal of biological chemistry 2006;281(39):29165-73.
2006: Hwan Youn; Mary Conrad; Soo-Yeol Chung; Gary P Roberts
Roles of the heme and heme ligands in the activation of CooA, the CO-sensing transcriptional activator.
Biochemical and biophysical research communications 2006;348(2):345-50.
2006: Yaoping Zhang; David M Wolfe; Edward L Pohlmann; Mary C Conrad; Gary P Roberts
Effect of AmtB homologues on the post-translational regulation of nitrogenase activity in response to ammonium and energy signals in Rhodospirillum rubrum.
Microbiology (Reading, England) 2006;152(Pt 7):2075-89.
2006: Yaoping Zhang; Edward L Pohlmann; Mary C Conrad; Gary P Roberts
The poor growth of Rhodospirillum rubrum mutants lacking PII proteins is due to an excess of glutamine synthetase activity.
Molecular microbiology 2006;61(2):497-510.
2006: Yu Zhu; Mary C Conrad; Yaoping Zhang; Gary P Roberts
Identification of Rhodospirillum rubrum GlnB variants that are altered in their ability to interact with different targets in response to nitrogen status signals.
Journal of bacteriology 2006;188(5):1866-74.
2006: Robert W Clark; Nicholas D Lanz; Andrea J Lee; Robert L Kerby; Gary P Roberts; Judith N Burstyn
Unexpected NO-dependent DNA binding by the CooA homolog from Carboxydothermus hydrogenoformans.
Proceedings of the National Academy of Sciences of the United States of America 2006;103(4):891-6.
2006: Hwan Youn; Robert L Kerby; Mary Conrad; Gary P Roberts
Study of highly constitutively active mutants suggests how cAMP activates cAMP receptor protein.
The Journal of biological chemistry 2006;281(2):1119-27.
2005: Susan Reslewic; Shiguo Zhou; Michael Place; Yaoping Zhang; Adam Briska; Steve Goldstein; Chris Churas; Rod Runnheim; Dan Forrest; Alex Lim; Alla Lapidus; Cliff S Han; Gary P Roberts; David C Schwartz
Whole-genome shotgun optical mapping of Rhodospirillum rubrum.
Applied and environmental microbiology 2005;71(9):5511-22.
2005: Hwan Youn; Marc V Thorsteinsson; Mary Conrad; Robert L Kerby; Gary P Roberts
Dual roles of an E-helix residue, Glu167, in the transcriptional activator function of CooA.
Journal of bacteriology 2005;187(8):2573-81.
2005: Yaoping Zhang; Edward L Pohlmann; Gary P Roberts
GlnD is essential for NifA activation, NtrB/NtrC-regulated gene expression, and posttranslational regulation of nitrogenase activity in the photosynthetic, nitrogen-fixing bacterium Rhodospirillum rubrum.
Journal of bacteriology 2005;187(4):1254-65.
2005: Gary P Roberts; Robert L Kerby; Hwan Youn; Mary Conrad
CooA, a paradigm for gas sensing regulatory proteins.
Journal of inorganic biochemistry 2005;99(1):280-92.
2004: Robert W Clark; Hwan Youn; Ryan B Parks; Melisa M Cherney; Gary P Roberts; Judith N Burstyn
Investigation of the role of the N-terminal proline, the distal heme ligand in the CO sensor CooA.
Biochemistry 2004;43(44):14149-60.
2004: Hwan Youn; Robert L Kerby; Gary P Roberts
Changing the ligand specificity of CooA, a highly specific heme-based CO sensor.
The Journal of biological chemistry 2004;279(44):45744-52.
2004: Gary P Roberts; Hwan Youn; Robert L Kerby
CO-sensing mechanisms.
Microbiology and molecular biology reviews : MMBR 2004;68(3):453-73, table of contents.
2004: Mrinalini Puranik; Steen Brøndsted Nielsen; Hwan Youn; Angela N Hvitved; James L Bourassa; Martin A Case; Charbel Tengroth; Gurusamy Balakrishnan; Marc V Thorsteinsson; John T Groves; George L McLendon; Gary P Roberts; John S Olson; Thomas G Spiro
Dynamics of carbon monoxide binding to CooA.
The Journal of biological chemistry 2004;279(20):21096-108.
2004: Yaoping Zhang; Edward L Pohlmann; Gary P Roberts
Identification of critical residues in GlnB for its activation of NifA activity in the photosynthetic bacterium Rhodospirillum rubrum.
Proceedings of the National Academy of Sciences of the United States of America 2004;101(9):2782-7.
2004: Hwan Youn; Robert L Kerby; Mary Conrad; Gary P Roberts
Functionally critical elements of CooA-related CO sensors.
Journal of bacteriology 2004;186(5):1320-9.
2004: Kitai Kim; Yaoping Zhang; Gary P Roberts
Characterization of altered regulation variants of dinitrogenase reductase-activating glycohydrolase from Rhodospirillum rubrum.
FEBS letters 2004;559(1-3):84-8.
2003: Candace M Coyle; Mrinalini Puranik; Hwan Youn; Steen Brøndsted Nielsen; Robert D Williams; Robert L Kerby; Gary P Roberts; Thomas G Spiro
Activation mechanism of the CO sensor CooA. Mutational and resonance Raman spectroscopic studies.
The Journal of biological chemistry 2003;278(37):35384-93.
2003: Robert L Kerby; Hwan Youn; Marc V Thorsteinsson; Gary P Roberts
Repositioning about the dimer interface of the transcription regulator CooA: a major signal transduction pathway between the effector and DNA-binding domains.
Journal of molecular biology 2003;325(4):809-23.
2003: Hwan Youn; Robert L Kerby; Gary P Roberts
The role of the hydrophobic distal heme pocket of CooA in ligand sensing and response.
The Journal of biological chemistry 2003;278(4):2333-40.
2002: Hwan Youn; Robert L Kerby; Marc V Thorsteinsson; Robert W Clark; Judith N Burstyn; Gary P Roberts
Analysis of the L116K variant of CooA, the heme-containing CO sensor, suggests the presence of an unusual heme ligand resulting in novel activity.
The Journal of biological chemistry 2002;277(37):33616-23.
2002: Luis M Rubio; Priya Rangaraj; Mary J Homer; Gary P Roberts; Paul W Ludden
Cloning and mutational analysis of the gamma gene from Azotobacter vinelandii defines a new family of proteins capable of metallocluster binding and protein stabilization.
The Journal of biological chemistry 2002;277(16):14299-305.
2001: Hwan Youn; Robert L Kerby; Marc V Thorsteinsson; Mary Conrad; Christopher R Staples; J Serate; J Beack; Gary P Roberts
The heme pocket afforded by Gly117 is crucial for proper heme ligation and activity of CooA.
The Journal of biological chemistry 2001;276(45):41603-10.
2001: Yaoping Zhang; Edward L Pohlmann; Paul W Ludden; Gary P Roberts
Functional characterization of three GlnB homologs in the photosynthetic bacterium Rhodospirillum rubrum: roles in sensing ammonium and energy status.
Journal of bacteriology 2001;183(21):6159-68.
2001: James LeDuc; Marc V Thorsteinsson; Tamas Gaal; Gary P Roberts
Mapping CooA.RNA polymerase interactions. Identification of activating regions 2 and 3 in CooA, the co-sensing transcriptional activator.
The Journal of biological chemistry 2001;276(43):39968-73.
2001: B S Antharavally; Russell R Poyner; Yaoping Zhang; Gary P Roberts; Paul W Ludden
Effects of specific amino acid substitutions on activities of dinitrogenase reductase-activating glycohydrolase from Rhodospirillum rubrum.
Journal of bacteriology 2001;183(19):5743-6.
2001: Marc V Thorsteinsson; Robert L Kerby; Hwan Youn; Mary Conrad; J Serate; Christopher R Staples; Gary P Roberts
Redox-mediated transcriptional activation in a CooA variant.
The Journal of biological chemistry 2001;276(29):26807-13.
2001: Yaoping Zhang; Edward L Pohlmann; CM Halbleib; Paul W Ludden; Gary P Roberts
Effect of P(II) and its homolog GlnK on reversible ADP-ribosylation of dinitrogenase reductase by heterologous expression of the Rhodospirillum rubrum dinitrogenase reductase ADP-ribosyl transferase-dinitrogenase reductase-activating glycohydrolase regulatory system in Klebsiella pneumoniae.
Journal of bacteriology 2001;183(5):1610-20.
2001: Gary P Roberts; Marc V Thorsteinsson; Robert L Kerby; William N Lanzilotta; Thomas L Poulos
CooA: a heme-containing regulatory protein that serves as a specific sensor of both carbon monoxide and redox state.
Progress in nucleic acid research and molecular biology 2001;67():35-63.
2000: Marc V Thorsteinsson; Robert L Kerby; Mary Conrad; Hwan Youn; Christopher R Staples; William N Lanzilotta; T J Poulos; J Serate; Gary P Roberts
Characterization of variants altered at the N-terminal proline, a novel heme-axial ligand in CooA, the CO-sensing transcriptional activator.
The Journal of biological chemistry 2000;275(50):39332-8.
2000: William N Lanzilotta; David J Schuller; Marc V Thorsteinsson; Robert L Kerby; Gary P Roberts; Thomas L Poulos
Structure of the CO sensing transcription activator CooA.
Nature structural biology 2000;7(10):876-80.
2000: Marc V Thorsteinsson; Robert L Kerby; Gary P Roberts
Altering the specificity of CooA, the carbon monoxide-sensing transcriptional activator: characterization of CooA variants that bind cyanide in the Fe(II) form with high affinity.
Biochemistry 2000;39(28):8284-90.
2000: CM Halbleib; Yaoping Zhang; Gary P Roberts; Paul W Ludden
Effects of perturbations of the nitrogenase electron transfer chain on reversible ADP-ribosylation of nitrogenase Fe protein in Klebsiella pneumoniae strains bearing the Rhodospirillum rubrum dra operon.
Journal of bacteriology 2000;182(13):3681-7.
2000: Yaoping Zhang; Edward L Pohlmann; Paul W Ludden; Gary P Roberts
Mutagenesis and functional characterization of the glnB, glnA, and nifA genes from the photosynthetic bacterium Rhodospirillum rubrum.
Journal of bacteriology 2000;182(4):983-92.
2000: Mark F Reynolds; Ryan B Parks; Judith N Burstyn; Daniel W Shelver; Marc V Thorsteinsson; Robert L Kerby; Gary P Roberts; Kathleen M Vogel; Thomas G Spiro
Electronic absorption, EPR, and resonance raman spectroscopy of CooA, a CO-sensing transcription activator from R. rubrum, reveals a five-coordinate NO-heme.
Biochemistry 2000;39(2):388-96.
1999: I K Dhawan; Daniel W Shelver; Marc V Thorsteinsson; Gary P Roberts; Michael K Johnson
Probing the heme axial ligation in the CO-sensing CooA protein with magnetic circular dichroism spectroscopy.
Biochemistry 1999;38(39):12805-13.
1999: Holly M Simon; Mark Gosink; Gary P Roberts
Importance of cis determinants and nitrogenase activity in regulated stability of the Klebsiella pneumoniae nitrogenase structural gene mRNA.
Journal of bacteriology 1999;181(12):3751-60.
1999: Richard M Allen; J T Roll; Priya Rangaraj; VK Shah; Gary P Roberts; Paul W Ludden
Incorporation of molybdenum into the iron-molybdenum cofactor of nitrogenase.
The Journal of biological chemistry 1999;274(22):15869-74.
1999: VK Shah; Priya Rangaraj; R Chatterjee; Richard M Allen; J T Roll; Gary P Roberts; Paul W Ludden
Requirement of NifX and other nif proteins for in vitro biosynthesis of the iron-molybdenum cofactor of nitrogenase.
Journal of bacteriology 1999;181(9):2797-801.
1999: Y He; Tamas Gaal; RK Karls; Timothy J Donohue; Richard L Gourse; Gary P Roberts
Transcription activation by CooA, the CO-sensing factor from Rhodospirillum rubrum. The interaction between CooA and the C-terminal domain of the alpha subunit of RNA polymerase.
The Journal of biological chemistry 1999;274(16):10840-5.
1999: Kathleen M Vogel; Thomas G Spiro; Daniel W Shelver; Marc V Thorsteinsson; Gary P Roberts
Resonance Raman evidence for a novel charge relay activation mechanism of the CO-dependent heme protein transcription factor CooA.
Biochemistry 1999;38(9):2679-87.
1999: Daniel W Shelver; Marc V Thorsteinsson; Robert L Kerby; S Y Chung; Gary P Roberts; Mark F Reynolds; Ryan B Parks; Judith N Burstyn
Identification of two important heme site residues (cysteine 75 and histidine 77) in CooA, the CO-sensing transcription factor of Rhodospirillum rubrum.
Biochemistry 1999;38(9):2669-78.
1999: Kitai Kim; Yaoping Zhang; Gary P Roberts
Correlation of activity regulation and substrate recognition of the ADP-ribosyltransferase that regulates nitrogenase activity in Rhodospirillum rubrum.
Journal of bacteriology 1999;181(5):1698-702.
1998: PJ Goodwin; Jeffrey N Agar; J T Roll; Gary P Roberts; Michael K Johnson; Dennis R Dean
The Azotobacter vinelandii NifEN complex contains two identical [4Fe-4S] clusters.
Biochemistry 1998;37(29):10420-8.
1998: N J Spangler; M R Meyers; K L Gierke; Robert L Kerby; Gary P Roberts; Paul W Ludden
Substitution of valine for histidine 265 in carbon monoxide dehydrogenase from Rhodospirillum rubrum affects activity and spectroscopic states.
The Journal of biological chemistry 1998;273(7):4059-64.
1997: Daniel W Shelver; Robert L Kerby; Y He; Gary P Roberts
CooA, a CO-sensing transcription factor from Rhodospirillum rubrum, is a CO-binding heme protein.
Proceedings of the National Academy of Sciences of the United States of America 1997;94(21):11216-20.
1997: Yaoping Zhang; R H Burris; Paul W Ludden; Gary P Roberts
Regulation of nitrogen fixation in Azospirillum brasilense.
FEMS microbiology letters 1997;152(2):195-204.
1997: Robert L Kerby; Paul W Ludden; Gary P Roberts
In vivo nickel insertion into the carbon monoxide dehydrogenase of Rhodospirillum rubrum: molecular and physiological characterization of cooCTJ.
Journal of bacteriology 1997;179(7):2259-66.
1997: Scott B Bintrim; Timothy J Donohue; Jo Handelsman; Gary P Roberts; Robert M Goodman
Molecular phylogeny of Archaea from soil.
Proceedings of the National Academy of Sciences of the United States of America 1997;94(1):277-82.
1997: Sandra K Grunwald; Yaoping Zhang; CM Halbleib; Gary P Roberts; Paul W Ludden
A proposed role for protein. Protein complexes in the regulation of the reversible ADP-ribosylation of dinitrogenase reductase.
Advances in experimental medicine and biology 1997;419():61-9.
1996: J D Fox; Y He; Daniel W Shelver; Gary P Roberts; Paul W Ludden
Characterization of the region encoding the CO-induced hydrogenase of Rhodospirillum rubrum.
Journal of bacteriology 1996;178(21):6200-8.
1996: Holly M Simon; M J Homer; Gary P Roberts
Perturbation of nifT expression in Klebsiella pneumoniae has limited effect on nitrogen fixation.
Journal of bacteriology 1996;178(10):2975-7.
1996: Yaoping Zhang; R H Burris; Paul W Ludden; Gary P Roberts
Presence of a second mechanism for the posttranslational regulation of nitrogenase activity in Azospirillum brasilense in response to ammonium.
Journal of bacteriology 1996;178(10):2948-53.
1996: R Davis; L Lehman; R Petrovich; VK Shah; Gary P Roberts; Paul W Ludden
Purification and characterization of the alternative nitrogenase from the photosynthetic bacterium Rhodospirillum rubrum.
Journal of bacteriology 1996;178(5):1445-50.
1996: J D Fox; Robert L Kerby; Gary P Roberts; Paul W Ludden
Characterization of the CO-induced, CO-tolerant hydrogenase from Rhodospirillum rubrum and the gene encoding the large subunit of the enzyme.
Journal of bacteriology 1996;178(6):1515-24.
1996: Y He; Daniel W Shelver; Robert L Kerby; Gary P Roberts
Characterization of a CO-responsive transcriptional activator from Rhodospirillum rubrum.
The Journal of biological chemistry 1996;271(1):120-3.
1995: M J Homer; Dennis R Dean; Gary P Roberts
Characterization of the gamma protein and its involvement in the metallocluster assembly and maturation of dinitrogenase from Azotobacter vinelandii.
The Journal of biological chemistry 1995;270(42):24745-52.
1995: Yaoping Zhang; A D Cummings; R H Burris; Paul W Ludden; Gary P Roberts
Effect of an ntrBC mutation on the posttranslational regulation of nitrogenase activity in Rhodospirillum rubrum.
Journal of bacteriology 1995;177(18):5322-6.
1995: Yaoping Zhang; R H Burris; Paul W Ludden; Gary P Roberts
Comparison studies of dinitrogenase reductase ADP-ribosyl transferase/dinitrogenase reductase activating glycohydrolase regulatory systems in Rhodospirillum rubrum and Azospirillum brasilense.
Journal of bacteriology 1995;177(9):2354-9.
1995: Robert L Kerby; Paul W Ludden; Gary P Roberts
Carbon monoxide-dependent growth of Rhodospirillum rubrum.
Journal of bacteriology 1995;177(8):2241-4.
1995: Daniel W Shelver; Robert L Kerby; Y He; Gary P Roberts
Carbon monoxide-induced activation of gene expression in Rhodospirillum rubrum requires the product of cooA, a member of the cyclic AMP receptor protein family of transcriptional regulators.
Journal of bacteriology 1995;177(8):2157-63.
1995: J T Roll; VK Shah; Dennis R Dean; Gary P Roberts
Characteristics of NIFNE in Azotobacter vinelandii strains. Implications for the synthesis of the iron-molybdenum cofactor of dinitrogenase.
The Journal of biological chemistry 1995;270(9):4432-7.
1995: Sandra K Grunwald; D P Lies; Gary P Roberts; Paul W Ludden
Posttranslational regulation of nitrogenase in Rhodospirillum rubrum strains overexpressing the regulatory enzymes dinitrogenase reductase ADP-ribosyltransferase and dinitrogenase reductase activating glycohydrolase.
Journal of bacteriology 1995;177(3):628-35.
1994: G M Nielsen; Y Bao; Gary P Roberts; Paul W Ludden
Purification and characterization of an oxygen-stable form of dinitrogenase reductase-activating glycohydrolase from Rhodospirillum rubrum.
The Biochemical journal 1994;302 ( Pt 3)():801-6.
1994: Yaoping Zhang; R H Burris; Paul W Ludden; Gary P Roberts
Posttranslational regulation of nitrogenase activity in Azospirillum brasilense ntrBC mutants: ammonium and anaerobic switch-off occurs through independent signal transduction pathways.
Journal of bacteriology 1994;176(18):5780-7.
1993: Richard M Allen; M J Homer; R Chatterjee; Paul W Ludden; Gary P Roberts; VK Shah
Dinitrogenase reductase- and MgATP-dependent maturation of apodinitrogenase from Azotobacter vinelandii.
The Journal of biological chemistry 1993;268(31):23670-4.
1993: Yaoping Zhang; R H Burris; Paul W Ludden; Gary P Roberts
Posttranslational regulation of nitrogenase activity by anaerobiosis and ammonium in Azospirillum brasilense.
Journal of bacteriology 1993;175(21):6781-8.
1993: M J Homer; T D Paustian; VK Shah; Gary P Roberts
The nifY product of Klebsiella pneumoniae is associated with apodinitrogenase and dissociates upon activation with the iron-molybdenum cofactor.
Journal of bacteriology 1993;175(15):4907-10.
1993: J Pierrard; John Willison; Paulette M Vignais; J L Gaspar; Paul W Ludden; Gary P Roberts
Site-directed mutagenesis of the target arginine for ADP-ribosylation of nitrogenase component II in Rhodobacter capsulatus.
Biochemical and biophysical research communications 1993;192(3):1223-9.
1993: J Pierrard; Paul W Ludden; Gary P Roberts
Posttranslational regulation of nitrogenase in Rhodobacter capsulatus: existence of two independent regulatory effects of ammonium.
Journal of bacteriology 1993;175(5):1358-66.
1993: R H Burris; Gary P Roberts
Biological nitrogen fixation.
Annual review of nutrition 1993;13():317-35.
1992: Robert L Kerby; S S Hong; S A Ensign; L J Coppoc; Paul W Ludden; Gary P Roberts
Genetic and physiological characterization of the Rhodospirillum rubrum carbon monoxide dehydrogenase system.
Journal of bacteriology 1992;174(16):5284-94.
1992: Yaoping Zhang; R H Burris; Gary P Roberts
Cloning, sequencing, mutagenesis, and functional characterization of draT and draG genes from Azospirillum brasilense.
Journal of bacteriology 1992;174(10):3364-9.
1991: Y Bao; D P Lies; Haian Fu; Gary P Roberts
An improved Tn7-based system for the single-copy insertion of cloned genes into chromosomes of gram-negative bacteria.
Gene 1991;109(1):167-8.
1991: J H Liang; G M Nielsen; D P Lies; R H Burris; Gary P Roberts; Paul W Ludden
Mutations in the draT and draG genes of Rhodospirillum rubrum result in loss of regulation of nitrogenase by reversible ADP-ribosylation.
Journal of bacteriology 1991;173(21):6903-9.
1991: L J Lehman; Gary P Roberts
Glycine 100 in the dinitrogenase reductase of Rhodospirillum rubrum is required for nitrogen fixation but not for ADP-ribosylation.
Journal of bacteriology 1991;173(19):6159-61.
1991: L J Lehman; Gary P Roberts
Identification of an alternative nitrogenase system in Rhodospirillum rubrum.
Journal of bacteriology 1991;173(18):5705-11.
1990: L J Lehman; W P Fitzmaurice; Gary P Roberts
The cloning and functional characterization of the nifH gene of Rhodospirillum rubrum.
Gene 1990;95(1):143-7.
1990: T D Paustian; VK Shah; Gary P Roberts
Apodinitrogenase: purification, association with a 20-kilodalton protein, and activation by the iron-molybdenum cofactor in the absence of dinitrogenase reductase.
Biochemistry 1990;29(14):3515-22.
1990: Mark Gosink; N M Franklin; Gary P Roberts
The product of the Klebsiella pneumoniae nifX gene is a negative regulator of the nitrogen fixation (nif) regulon.
Journal of bacteriology 1990;172(3):1441-7.
1990: H Fu; R H Burris; Gary P Roberts
Reversible ADP-ribosylation is demonstrated to be a regulatory mechanism in prokaryotes by heterologous expression.
Proceedings of the National Academy of Sciences of the United States of America 1990;87(5):1720-4.
1990: Haian Fu; W P Fitzmaurice; Gary P Roberts; R H Burris
Cloning and expression of draTG genes from Azospirillum lipoferum.
Gene 1990;86(1):95-8.
1989: Haian Fu; H J Wirt; R H Burris; Gary P Roberts
Functional expression of a Rhodospirillum rubrum gene encoding dinitrogenase reductase ADP-ribosyltransferase in enteric bacteria.
Gene 1989;85(1):153-60.
1989: Paul W Ludden; L Lehman; Gary P Roberts
Reversible ADP-ribosylation of dinitrogenase reductase in a nifD- mutant of Rhodospirillum rubrum.
Journal of bacteriology 1989;171(9):5210-1.
1989: Haian Fu; A Hartmann; R G Lowery; W P Fitzmaurice; Gary P Roberts; R H Burris
Posttranslational regulatory system for nitrogenase activity in Azospirillum spp.
Journal of bacteriology 1989;171(9):4679-85.
1989: T D Paustian; VK Shah; Gary P Roberts
Purification and characterization of the nifN and nifE gene products from Azotobacter vinelandii mutant UW45.
Proceedings of the National Academy of Sciences of the United States of America 1989;86(16):6082-6.
1989: W P Fitzmaurice; L L Saari; R G Lowery; Paul W Ludden; Gary P Roberts
Genes coding for the reversible ADP-ribosylation system of dinitrogenase reductase from Rhodospirillum rubrum.
Molecular & general genetics : MGG 1989;218(2):340-7.
1989: D Bonam; L Lehman; Gary P Roberts; Paul W Ludden
Regulation of carbon monoxide dehydrogenase and hydrogenase in Rhodospirillum rubrum: effects of CO and oxygen on synthesis and activity.
Journal of bacteriology 1989;171(6):3102-7.
1989: Paul W Ludden; Gary P Roberts
Regulation of nitrogenase activity by reversible ADP ribosylation.
Current topics in cellular regulation 1989;30():23-56.
1980: W T Leps; Gary P Roberts; W J Brill
Use of Two-Dimensional Polyacrylamide Electrophoresis to Demonstrate that Putative Rhizobium Cross-Inoculation Mutants Actually Are Contaminants.
Applied and environmental microbiology 1980;39(2):460-2.
1980: Gary P Roberts; W T Leps; L E Silver; W J Brill
Use of two-dimensional polyacrylamide gel electrophoresis to identify and classify Rhizobium strains.
Applied and environmental microbiology 1980;39(2):414-22.