P. Ludden

发表

Characterization of the CO-induced, CO-tolerant hydrogenase from Rhodospirillum rubrum and the gene encoding the large subunit of the enzyme

R. Kerby, J. Fox, J. D. Fox, 1996, Journal of bacteriology.

Genes required for rapid expression of nitrogenase activity in Azotobacter vinelandii.

L. Curatti, P. Ludden, Carolyns . Brown, 2005, Proceedings of the National Academy of Sciences of the United States of America.

CHAPTER 4 – The Gene Products of the nif Regulon

P. Ludden, L. M. Rubio, 2002 .

Nif Gene Products and Their Roles in Nitrogen Fixation

P. Ludden, 1993 .

Role of the Dinitrogenase Reductase Arginine 101 Residue in Dinitrogenase Reductase ADP-Ribosyltransferase Binding, NAD Binding, and Cleavage

Yan Ma, P. Ludden, 2001, Journal of bacteriology.

ADP-Ribosylation of Variants of Azotobacter vinelandiiDinitrogenase Reductase by Rhodospirillum rubrumDinitrogenase Reductase ADP-Ribosyltransferase

M. J. Ryle, W. Lanzilotta, P. Ludden, 2000, Journal of bacteriology.

ApoNifH functions in iron-molybdenum cofactor synthesis and apodinitrogenase maturation.

P. Ludden, V. K. Shah, P. Rangaraj, 1997, Proceedings of the National Academy of Sciences of the United States of America.

In Vitro Biosynthesis of Iron-Molybdenum Cofactor and Maturation of the nif-encoded Apodinitrogenase

M. J. Ryle, W. Lanzilotta, P. Ludden, 1999, The Journal of Biological Chemistry.

Maturation of Nitrogenase: a Biochemical Puzzle

P. Ludden, L. M. Rubio, 2005, Journal of bacteriology.

Homocitrate is a component of the iron-molybdenum cofactor of nitrogenase.

T. Hoover, P. Ludden, J. Imperial, 1989, Biochemistry.

Regulation of carbon monoxide dehydrogenase and hydrogenase in Rhodospirillum rubrum: effects of CO and oxygen on synthesis and activity

G. Roberts, P. Ludden, D. Bonam, 1989, Journal of bacteriology.

Genetic and physiological characterization of the Rhodospirillum rubrum carbon monoxide dehydrogenase system

R. Kerby, G. Roberts, P. Ludden, 1992, Journal of bacteriology.

Identification of the V factor needed for synthesis of the iron-molybdenum cofactor of nitrogenase as homocitrate

A. D. Robertson, T. Hoover, R. Cerny, 1987, Nature.

Carbon monoxide dehydrogenase from Rhodospirillum rubrum

S. Murrell, P. Ludden, D. Bonam, 1984, Journal of bacteriology.

NAD‐, NMN‐, and NADP‐dependent modification of dinitrogenase reductases from Rhodospirillum rubrum and Azotobacter vinelandii

P. Ludden, L. M. Rubio, S. Grunwald, 2005, FEBS letters.

Nickel is required for the transfer of electrons from carbon monoxide to the iron-sulfur center(s) of carbon monoxide dehydrogenase from Rhodospirillum rubrum.

P. Ludden, S. Ensign, D. Bonam, 1989, Biochemistry.

Nickel-specific, slow-binding inhibition of carbon monoxide dehydrogenase from Rhodospirillum rubrum by cyanide.

P. Ludden, M. Hyman, S. Ensign, 1989, Biochemistry.

Carbonyl sulfide inhibition of CO dehydrogenase from Rhodospirillum rubrum.

D. Arp, P. Ludden, M. Hyman, 1989, Biochemistry.

Genetic andPhysiological Characterization ofthe Rhodospinillum rubrumCarbonMonoxide Dehydrogenase System

P. Ludden, 1992 .

Carbon monoxide-dependent growth of Rhodospirillum rubrum

R. Kerby, G. Roberts, P. Ludden, 1995, Journal of bacteriology.

Covalent modification of the iron protein of nitrogenase from Rhodospirillum rubrum by adenosine diphosphoribosylation of a specific arginine residue.

S. Murrell, P. Ludden, M. Pope, 1985, Proceedings of the National Academy of Sciences of the United States of America.

N-glycohydrolysis of adenosine diphosphoribosyl arginine linkages by dinitrogenase reductase activating glycohydrolase (activating enzyme) from Rhodospirillum rubrum.

P. Ludden, M. Pope, L. Saari, 1986, The Journal of biological chemistry.

Characterization of VNFG, the δ Subunit of the vnf-Encoded Apodinitrogenase from Azotobacter vinelandii

P. Ludden, R. Chatterjee, V. K. Shah, 1997, The Journal of Biological Chemistry.

Extended X-ray absorption fine structure and nuclear resonance vibrational spectroscopy reveal that NifB-co, a FeMo-co precursor, comprises a 6Fe core with an interstitial light atom.

Yuming Xiao, S. George, S. Cramer, 2008, Journal of the American Chemical Society.

Effects of homocitrate, homocitrate lactone, and fluorohomocitrate on nitrogenase in NifV- mutants of Azotobacter vinelandii

P. Ludden, V. K. Shah, M. Madden, 1991, Journal of bacteriology.

Diastereomer-dependent substrate reduction properties of a dinitrogenase containing 1-fluorohomocitrate in the iron-molybdenum cofactor.

P. Ludden, V. K. Shah, N. Kindon, 1990, Proceedings of the National Academy of Sciences of the United States of America.

Substrate reduction properties of dinitrogenase activated in vitro are dependent upon the presence of homocitrate or its analogues during iron-molybdenum cofactor synthesis.

T. Hoover, P. Ludden, J. Imperial, 1989, Biochemistry.

Phototrophic N2 and CO2 Fixation Using a Rhodopseudomonas palustris-H2 Mediated Electrochemical System With Infrared Photons

Rhesa N Ledbetter, L. Seefeldt, P. Ludden, 2019, Front. Microbiol..

Carbon monoxide dehydrogenase from Rhodospirillumrubrum produces formate

P. Ludden, C. Staples, L. Skjeldal, 2002, JBIC Journal of Biological Inorganic Chemistry.

Purification and characterization of the alternative nitrogenase from the photosynthetic bacterium Rhodospirillum rubrum

R. Petrovich, G. Roberts, P. Ludden, 1996, Journal of bacteriology.

Substitution of histidine for arginine-101 of dinitrogenase reductase disrupts electron transfer to dinitrogenase.

P. Stephens, L. Davis, P. Ludden, 1989, Biochemistry.

Nitrogenase Complex

P. Ludden, 2001 .

Regulation of Dinitrogenase Reductase ADP-ribosyltransferase and Dinitrogenase Reductase-activating Glycohydrolase by a Redox-dependent Conformational Change of Nitrogenase Fe Protein*

Yaoping Zhang, P. Ludden, C. Halbleib, 2000, The Journal of Biological Chemistry.

NifX and NifEN exchange NifB cofactor and the VK‐cluster, a newly isolated intermediate of the iron‐molybdenum cofactor biosynthetic pathway

L. Curatti, P. Ludden, D. Dean, 2007, Molecular microbiology.

Purification and Characterization of NafY (Apodinitrogenase γ Subunit) from Azotobacter vinelandii*

S. Singer, P. Ludden, L. M. Rubio, 2004, Journal of Biological Chemistry.

Biosynthesis of the Iron-Molydbenum and Iron-Vanadium Cofactors of the nif- and vnf-Encoded Nitrogenases

P. Ludden, L. M. Rubio, P. Rangaraj, 2004 .

Cloning and Mutational Analysis of the γ Gene fromAzotobacter vinelandii Defines a New Family of Proteins Capable of Metallocluster Binding and Protein Stabilization*

G. Roberts, P. Ludden, L. M. Rubio, 2002, The Journal of Biological Chemistry.

Inhibition of Iron-Molybdenum Cofactor Biosynthesis by L127Δ NifH and Evidence for a Complex Formation between L127Δ NifH and NifNE*

M. J. Ryle, W. Lanzilotta, P. Ludden, 1999, The Journal of Biological Chemistry.

A Vanadium and Iron Cluster Accumulates on VnfX during Iron-Vanadium-cofactor Synthesis for the Vanadium Nitrogenase inAzotobacter vinelandii *

C. Rüttimann-Johnson, P. Ludden, C. Staples, 1999, The Journal of Biological Chemistry.

Dinitrogenase with altered substrate specificity results from the use of homocitrate analogues for in vitro synthesis of the iron-molybdenum cofactor.

T. Hoover, P. Ludden, J. Imperial, 1988, Biochemistry.

In Vitro Synthesis of the Iron-Molybdenum Cofactor and Maturation of the nif-encoded Apodinitrogenase

P. Ludden, R. M. Allen, R. Chatterjee, 1997, The Journal of Biological Chemistry.

In vitro synthesis of the iron-molybdenum cofactor of nitrogenase. Purification and characterization of NifB cofactor, the product of NIFB protein.

Jeffrey R. Allen, P. Ludden, V. K. Shah, 1994, The Journal of biological chemistry.

Dinitrogenase reductase- and MgATP-dependent maturation of apodinitrogenase from Azotobacter vinelandii.

G. Roberts, P. Ludden, R. M. Allen, 1993, The Journal of biological chemistry.

The Requirement of Reductant for in Vitro Biosynthesis of the Iron-Molybdenum Cofactor of Nitrogenase (*)

P. Ludden, R. M. Allen, R. Chatterjee, 1996, The Journal of Biological Chemistry.

NifB-dependent in vitro synthesis of the iron-molybdenum cofactor of nitrogenase.

L. Curatti, P. Ludden, L. M. Rubio, 2006, Proceedings of the National Academy of Sciences of the United States of America.

Purification and properties of dinitrogenase reductase ADP-ribosyltransferase from the photosynthetic bacterium Rhodospirillum rubrum.

P. Ludden, R. Lowery, R. G. Lowery, 1988, The Journal of biological chemistry.

Identification of a Ni- and Fe-containing cluster in Rhodospirillum rubrum carbon monoxide dehydrogenase.

P. Stephens, P. Ludden, S. Ensign, 1989, The Journal of biological chemistry.

Reversible ADP-ribosylation of dinitrogenase reductase in a nifD- mutant of Rhodospirillum rubrum

G. Roberts, P. Ludden, L. Lehman, 1989, Journal of bacteriology.

nifV-dependent, low-molecular-weight factor required for in vitro synthesis of iron-molybdenum cofactor of nitrogenase

T. Hoover, G. Roberts, P. Ludden, 1986, Journal of bacteriology.

Effect of ammonia, darkness, and phenazine methosulfate on whole-cell nitrogenase activity and Fe protein modification in Rhodospirillum rubrum

P. Ludden, R. Kanemoto, 1984, Journal of bacteriology.

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

Yaoping Zhang, G. Roberts, P. Ludden, 2000, Journal of bacteriology.

Presence of a second mechanism for the posttranslational regulation of nitrogenase activity in Azospirillum brasilense in response to ammonium

G. Roberts, P. Ludden, R. Burris, 1996, Journal of bacteriology.

Comparison studies of dinitrogenase reductase ADP-ribosyl transferase/dinitrogenase reductase activating glycohydrolase regulatory systems in Rhodospirillum rubrum and Azospirillum brasilense

G. Roberts, P. Ludden, R. Burris, 1995, Journal of bacteriology.

Mutations in the draT and draG genes of Rhodospirillum rubrum result in loss of regulation of nitrogenase by reversible ADP-ribosylation

G. Roberts, P. Ludden, R. Burris, 1991, Journal of bacteriology.

Nitrogen fixation by photosynthetic bacteria

G. Roberts, P. Ludden, 2004, Photosynthesis Research.

Posttranslational regulation of nitrogenase activity by anaerobiosis and ammonium in Azospirillum brasilense

Yaoping Zhang, G. Roberts, P. Ludden, 1993, Journal of bacteriology.

VnfY Is Required for Full Activity of the Vanadium-Containing Dinitrogenase in Azotobacter vinelandii

C. Rüttimann-Johnson, P. Ludden, D. Dean, 2003, Journal of bacteriology.

Regulation of nitrogen fixation in Azospirillum brasilense.

Yaoping Zhang, G. Roberts, P. Ludden, 1997, FEMS microbiology letters.

Post-Translational Regulation of Nitrogenase in Photosynthetic Bacteria

P. Ludden, S. Nordlund, 2004 .

NAD-dependent cross-linking of dinitrogenase reductase and dinitrogenase reductase ADP-ribosyltransferase from Rhodospirillum rubrum

P. Ludden, S. Grunwald, 1997, Journal of bacteriology.

ATP-dependent and NAD-dependent modification of glutamine synthetase from Rhodospirillum rubrum in vitro.

P. Ludden, B. Lueddecke, D. Woehle, 1990, The Journal of biological chemistry.

The Identification, Purification, and Characterization of CooJ

P. Ludden, R. K. Watt, 1998, The Journal of Biological Chemistry.

Incorporation of Molybdenum into the Iron-Molybdenum Cofactor of Nitrogenase*

G. Roberts, P. Ludden, R. M. Allen, 1999, The Journal of Biological Chemistry.

Biosynthesis of the Iron-Molybdenum and Iron-Vanadium Cofactors

C. Rüttimann-Johnson, G. Roberts, P. Ludden, 1998 .

Reversible ADP-ribosylation as a mechanism of enzyme regulation in procaryotes

P. Ludden, 1994, Molecular and Cellular Biochemistry.

Accumulation of 99Mo-containing Iron-Molybdenum Cofactor Precursors of Nitrogenase on NifNE, NifH, and NifX ofAzotobacter vinelandii *

P. Ludden, P. Rangaraj, 2002, The Journal of Biological Chemistry.

Accumulation of 55Fe-Labeled Precursors of the Iron-Molybdenum Cofactor of Nitrogenase on NifH and NifX ofAzotobacter vinelandii *

C. Rüttimann-Johnson, P. Ludden, V. K. Shah, 2001, The Journal of Biological Chemistry.

A Proposed Role for Protein

Yaoping Zhang, G. Roberts, P. Ludden, 1997 .

Incorporation of Iron and Sulfur from NifB Cofactor into the Iron-Molybdenum Cofactor of Dinitrogenase (*)

P. Ludden, R. M. Allen, R. Chatterjee, 1995, The Journal of Biological Chemistry.

Posttranslational Regulation of Nitrogenase Activity by Reversible ADP-Ribosylation; How are the Regulatory Enzymes Drat and Drag Regulated?

Yaoping Zhang, G. Roberts, P. Ludden, 1995 .

The Biochemistry and Genetics of Nitrogen Fixation by Photosynthetic Bacteria

G. Roberts, P. Ludden, 1995 .

Biosynthesis of the iron-molybdenum cofactor of nitrogenase.

P. Ludden, R. M. Allen, R. Chatterjee, 1994, Critical reviews in biotechnology.

ADP-ribosylation of dinitrogenase reductase from Clostridium pasteurianum prevents its inhibition of nitrogenase from Azotobacter vinelandii.

S. Murrell, P. Ludden, R. Lowery, 1988, The Biochemical journal.

Requirement of NifX and other nif proteins for in vitro biosynthesis of the iron-molybdenum cofactor of nitrogenase.

G. Roberts, P. Ludden, R. M. Allen, 1999, Journal of bacteriology.

Nucleotide and divalent cation specificity of in vitro iron-molybdenum cofactor synthesis

P. Ludden, R. M. Allen, R. Chatterjee, 1994, Journal of bacteriology.

Synthesis of the iron-molybdenum cofactor of nitrogenase is inhibited by a low-molecular-weight metabolite of Klebsiella pneumoniae

D. Downs, P. Ludden, V. K. Shah, 1990, Journal of bacteriology.

In vitro synthesis of the iron-molybdenum cofactor and its analogs: Requirement of a non-nif gene product for the synthesis, and altered properties of dinitrogenase

P. Ludden, V. K. Shah, M. Madden, 1990 .

Homocitrate cures the NifV- phenotype in Klebsiella pneumoniae

T. Hoover, P. Ludden, J. Imperial, 1988, Journal of bacteriology.

Iron-molybdenum cofactor synthesis in Azotobacter vinelandii Nif- mutants

W. Brill, R. Ugalde, P. Ludden, 1987, Journal of bacteriology.

Mutants of Azotobacter vinelandii

P. Ludden, V. K. Shah, M. Madden, 2022 .

Accumulation of factor F395 in nifNE mutants of Klebsiella pneumoniae.

D. Downs, P. Ludden, V. K. Shah, 1993, Canadian journal of microbiology.

Effects ofHomocitrate, Homocitrate Lactone, and Fluorohomocitrate

P. Ludden, V. K. Shah, 1991 .

Reversible ADP-Ribosylation of Dinitrogenase Reductase from Rhodospirillum rubrum Regulates the Activity of the Enzyme In Vivo and In Vitro

S. Murrell, G. Roberts, P. Ludden, 1989 .

Posttranslational regulation of nitrogenase in Rhodospirillum rubrum strains overexpressing the regulatory enzymes dinitrogenase reductase ADP-ribosyltransferase and dinitrogenase reductase activating glycohydrolase

G. Roberts, P. Ludden, S. Grunwald, 1995, Journal of bacteriology.

Effect of nucleotides on the activity of dinitrogenase reductase ADP-ribosyltransferase from Rhodospirillum rubrum.

P. Ludden, R. Lowery, 1989, Biochemistry.

Studies on the activating enzyme for iron protein of nitrogenase from Rhodospirillum rubrum.

S. Murrell, P. Ludden, M. Pope, 1986, The Journal of biological chemistry.

Purification and properties of the activating enzyme for iron protein of nitrogenase from the photosynthetic bacterium Rhodospirillum rubrum.

E. Triplett, P. Ludden, L. Saari, 1984, The Journal of biological chemistry.

Adenine nucleotide levels in Rhodospirillum rubrum during switch-off of whole-cell nitrogenase activity.

P. Ludden, T. Paul, 1984, The Biochemical journal.

Activating factor for the iron protein of nitrogenase from Rhodospirillum rubrum.

P. Ludden, R. Burris, 1976, Science.

Isolation and characterization of draT mutants that have altered regulatory properties of dinitrogenase reductase ADP-ribosyltransferase in Rhodospirillum rubrum.

Y. Zhang, G. Roberts, P. Ludden, 2001, Microbiology.

Characterization of the interaction of dinitrogenase reductase-activating glycohydrolase from Rhodospirillum rubrum with bacterial membranes

P. Ludden, C. Halbleib, 1999, Archives of Microbiology.

ADP-Ribosylation as a Regulatory Mechanism for Nitrogen Fixation

Yaoping Zhang, Ying-Xin Zhang, Kitai Kim, 1998 .

Effect of an ntrBC mutation on the posttranslational regulation of nitrogenase activity in Rhodospirillum rubrum

G. Roberts, P. Ludden, R. Burris, 1995, Journal of bacteriology.

Posttranslational regulation of nitrogenase activity in Azospirillum brasilense ntrBC mutants: ammonium and anaerobic switch-off occurs through independent signal transduction pathways

G. Roberts, P. Ludden, R. Burris, 1994, Journal of bacteriology.

Expression of the activating enzyme and Fe protein of nitrogenase from Rhodospirillum rubrum

J. Wall, E. Triplett, P. Ludden, 1982, Journal of bacteriology.

Properties and activities of ‘inactive’ fe protein from Rhodospirillum rubrum

W. Orme-Johnson, P. Ludden, R. Burris, 1982 .

The genetics and biochemistry of the reversible ADP-ribosylation systems of Rhodospirillum rubrum and Azospirillum lipoferum

G. Roberts, P. Ludden, R. Burris, 1990 .

Purification and properties of the heat-released nucleotide-modifying group from the inactive iron protein of nitrogenase from Rhodospirillum rubrum.

S. Murrell, P. Ludden, M. Pope, 1985, Biochemistry.

Incorporation of adenine into the modifying group of inactive iron protein of nitrogenase from Rhodospirillum rubrum.

P. Ludden, S. Nordlund, 1983, The Biochemical journal.

Heat activation of the Fe protein of nitrogenase from Rhodospirillum rubrum.

P. Ludden, G. G. Preston, T. E. Dowling, 1982, The Journal of biological chemistry.

Change in subunit composition of the iron protein of nitrogenase from Rhodospirillum rubrum during activation and inactivation of iron protein.

P. Ludden, G. G. Preston, 1982, The Biochemical journal.

Removal of an adenine-like molecule during activation of dinitrogenase reductase from Rhodospirillum rubrum.

P. Ludden, R. Burris, 1979, Proceedings of the National Academy of Sciences of the United States of America.

Purification and properties of nitrogenase from Rhodospirillum rubrum, and evidence for phosphate, ribose and an adenine-like unit covalently bound to the iron protein.

P. Ludden, R. Burris, 1978, The Biochemical journal.

Effects of Specific Amino Acid Substitutions on Activities of Dinitrogenase Reductase-Activating Glycohydrolase fromRhodospirillum rubrum

Yaoping Zhang, G. Roberts, P. Ludden, 2001, Journal of bacteriology.

Inhibition of Iron-Molybdenum Cofactor Synthesis by L127Δ, an Altered form of Dinitrogenase Reductase

P. Ludden, V. K. Shah, P. Rangaraj, 1998 .

New insights into the mechanism of nickel insertion into carbon monoxide dehydrogenase: analysis of Rhodospirillum rubrum carbon monoxide dehydrogenase variants with substituted ligands to the [Fe3S4] portion of the active-site C-cluster

S. Singer, P. Ludden, L. M. Rubio, 2005, JBIC Journal of Biological Inorganic Chemistry.

Substitution of Valine for Histidine 265 in Carbon Monoxide Dehydrogenase from Rhodospirillum rubrum Affects Activity and Spectroscopic States*

R. Kerby, G. Roberts, P. Ludden, 1998, The Journal of Biological Chemistry.

Site-directed mutagenesis of the target arginine for ADP-ribosylation of nitrogenase component II in Rhodobacter capsulatus.

J. Willison, G. Roberts, P. Ludden, 1993, Biochemical and biophysical research communications.

In vitro synthesis of the iron-molybdenum cofactor of nitrogenase.

W. Brill, R. Ugalde, P. Ludden, 1986, Proceedings of the National Academy of Sciences of the United States of America.

Requirement of Homocitrate for the Transfer of a49V-Labeled Precursor of the Iron-Vanadium Cofactor from VnfX to nif-apodinitrogenase*

C. Rüttimann-Johnson, P. Ludden, V. K. Shah, 2001, The Journal of Biological Chemistry.

Derepression of nitrogenase by addition of malate to cultures of Rhodospirillum rubrum grown with glutamate as the carbon and nitrogen source

T. Hoover, P. Ludden, 1984, Journal of bacteriology.

A diazotrophic bacterial endophyte isolated from stems of Zea mays L. and Zea luxurians Iltis and Doebley

J. Borneman, E. Triplett, P. Ludden, 1996, Plant and Soil.

Posttranslational regulation of nitrogenase in Rhodobacter capsulatus: existence of two independent regulatory effects of ammonium

G. Roberts, P. Ludden, J. Pierrard, 1993, Journal of bacteriology.

Borate inhibits activation of inactive dinitrogenase reductase from Rhodospirillum rubrum.

P. Ludden, 1981, The Biochemical journal.

The Biochemistry of CO Dehydrogenase in Rhodospirillum rubrum

R. Kerby, D. Shelver, Yiping He, 1996 .

Properties and regulation of glutamine synthetase from Rhodospirillum rubrum

S. Murrell, P. Ludden, S. Nordlund, 1985, Journal of bacteriology.

Indirect measures of N2 fixation in common bean (Phaseolus vulgaris L.) under field conditions: The role of lateral root nodules

F. Bliss, P. Ludden, D. Wolyn, 2005, Plant and Soil.

Converting the NiFeS Carbon Monoxide Dehydrogenase to a Hydrogenase and a Hydroxylamine Reductase

M. Wolfe, P. Ludden, C. Staples, 2002, Journal of bacteriology.

Synthesis oftheIron-Molybdenum Cofactor ofNitrogenase Is Inhibited byaLow-Molecular-Weight

D. Downs, P. Ludden, V. K. Shah, 1990 .

CO-dependent H2 evolution by Rhodospirillum rubrum: role of CODH:CooF complex.

S. Singer, P. Ludden, M. Hirst, 2006, Biochimica et biophysica acta.

Regulation of Nitrogen Fixation in Photosynthetic Bacteria

E. Triplett, P. Ludden, M. Pope, 1984 .

Comparison of active and inactive forms of iron protein from Rhodospirillum rubrum.

P. Ludden, G. G. Preston, T. E. Dowling, 1982, The Biochemical journal.

Characterization of the CO oxidation/H2 evolution system of Rhodospirillum rubrum. Role of a 22-kDa iron-sulfur protein in mediating electron transfer between carbon monoxide dehydrogenase and hydrogenase.

P. Ludden, S. Ensign, S. A. Ensign, 1991, The Journal of biological chemistry.

Purification and characterization of carbon monoxide dehydrogenase, a nickel, zinc, iron-sulfur protein, from Rhodospirillum rubrum.

P. Ludden, D. Bonam, 1987, The Journal of biological chemistry.

Effect of PII 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 inKlebsiella pneumoniae

Yaoping Zhang, G. Roberts, P. Ludden, 2001, Journal of bacteriology.

Activation of the nickel-deficient carbon monoxide dehydrogenase from Rhodospirillum rubrum: kinetic characterization and reductant requirement.

P. Ludden, S. Ensign, M. Campbell, 1990, Biochemistry.

Characterization of Heterogeneous Nickel Sites in CO Dehydrogenases from Clostridium thermoaceticum and Rhodospirillum rubrum by Nickel L-Edge X-ray Spectroscopy

R. M. Jones, Manoj Kumar, S. Ragsdale, 2000 .

The Three-dimensional Structure of the Core Domain of Naf Y from Azotobacter vinelandii determined at 1.8-Å Resolution*

I. Rayment, J. Thoden, H. Holden, 2003, Journal of Biological Chemistry.

Purification and Characterization of Membrane-associated CooC Protein and Its Functional Role in the Insertion of Nickel into Carbon Monoxide Dehydrogenase from Rhodospirillum rubrum *

Jiujun Cheng, P. Ludden, W. Jeon, 2001, The Journal of Biological Chemistry.

In vivo nickel insertion into the carbon monoxide dehydrogenase of Rhodospirillum rubrum: molecular and physiological characterization of cooCTJ

R. Kerby, G. Roberts, P. Ludden, 1997, Journal of bacteriology.

Direct electrochemical studies of hydrogenase and CO dehydrogenase.

P. Ludden, E. Smith, B. Feinberg, 1992, The Biochemical journal.

Nickel-binding proteins

P. Ludden, R. K. Watt, 1999, Cellular and Molecular Life Sciences CMLS.

Ni2+ Transport and Accumulation inRhodospirillum rubrum

P. Ludden, R. K. Watt, 1999, Journal of bacteriology.

Fluorometric assay for ADP-ribosylarginine cleavage enzymes.

P. Ludden, M. Pope, L. Saari, 1987, Analytical biochemistry.

Reversible regulation of the nitrogenase iron protein from Rhodospirillum rubrum by ADP-ribosylation in vitro

P. Ludden, R. Lowery, L. Saari, 1986, Journal of bacteriology.

Characterization of the region encoding the CO-induced hydrogenase of Rhodospirillum rubrum

D. Shelver, J. D. Fox, G. Roberts, 1996, Journal of bacteriology.

Genes coding for the reversible ADP-ribosylation system of dinitrogenase reductase from Rhodospirillum rubrum

G. Roberts, P. Ludden, R. Lowery, 1989, Molecular and General Genetics MGG.

Life on carbon monoxide: X-ray structure of Rhodospirillum rubrum Ni-Fe-S carbon monoxide dehydrogenase

E. Schreiter, M. Sintchak, C. Drennan, 2001, Proceedings of the National Academy of Sciences of the United States of America.

Functional Characterization of Three GlnB Homologs in the Photosynthetic Bacterium Rhodospirillum rubrum: Roles in Sensing Ammonium and Energy Status

Yaoping Zhang, G. Roberts, P. Ludden, 2001, Journal of bacteriology.

and Ammonium and Energy Status : Roles in Sensing Rhodospirillum rubrum Homologs in the Photosynthetic Bacterium Functional Characterization of Three GlnB

Yaoping Zhang, G. Roberts, P. Ludden, 2001 .

In vivo and in vitro studies on ATP and electron donors to nitrogenase in Rhodospirillum rubrum

P. Ludden, R. Burris, 1981, Archives of Microbiology.

Hydroxylamine Reductase Activity of the Hybrid Cluster Protein from Escherichia coli

John S. Garavelli, Marcus T. Wolfe, J. Garavelli, 2002, Journal of bacteriology.

Suppression of phaseolin and lectin in seeds of common bean, Phaseolus vulgaris L.: increased accumulation of 54 kDa polypeptides is not associated with higher seed methionine concentrations

F. Bliss, P. Ludden, M. Burow, 1993, Molecular and General Genetics MGG.

Redox-dependent activation of CO dehydrogenase from Rhodospirillum rubrum

P. Ludden, C. Halbleib, J. Heo, 2001, Proceedings of the National Academy of Sciences of the United States of America.

Evidence for a ligand CO that is required for catalytic activity of CO dehydrogenase from Rhodospirillum rubrum.

P. Ludden, C. Staples, C. Halbleib, 2000, Biochemistry.

Rhodospirillum rubrum CO-Dehydrogenase. Part 1. Spectroscopic Studies of CODH Variant C531A Indicate the Presence of a Binuclear [FeNi] Cluster

R. Kerby, G. Roberts, P. Ludden, 1999 .

Rhodospirillum rubrum CO-Dehydrogenase. Part 2. Spectroscopic Investigation and Assignment of Spin−Spin Coupling Signals

J. Telser, P. Ludden, C. Staples, 1999 .

Nature of the C-Cluster in Ni-Containing Carbon Monoxide Dehydrogenases

A. Lindahl, P. Ludden, E. Münck, 1996 .

Nickel-deficient carbon monoxide dehydrogenase from Rhodospirillum rubrum: in vivo and in vitro activation by exogenous nickel.

P. Stephens, P. Ludden, D. Bonam, 1988, Proceedings of the National Academy of Sciences of the United States of America.

Regulation of nitrogenase activity by reversible ADP ribosylation.

G. Roberts, P. Ludden, 1989, Current topics in cellular regulation.

The nitrogenase system of Spirillum lipoferum.

Y. Okon, P. Ludden, R. Burris, 1978, The Biochemical journal.

Mutagenesis and Functional Characterization of theglnB, glnA, and nifA Genes from the Photosynthetic Bacterium Rhodospirillum rubrum

Yaoping Zhang, G. Roberts, P. Ludden, 2000, Journal of bacteriology.

Regulation of biological nitrogen fixation.

P. Ludden, C. Halbleib, 2000, The Journal of nutrition.

DNA sequence and mutational analysis of genes involved in the production and resistance of the antibiotic peptide trifolitoxin

E. Triplett, P. Ludden, B. Breil, 1993, Journal of bacteriology.

Amino acid concentrations in Rhodospirillum rubrum during expression and switch-off of nitrogenase activity

P. Ludden, R. Kanemoto, Roy H. KANEMOTOt, 1987, Journal of bacteriology.

Biosynthesis of the iron-molybdenum cofactor of nitrogenase.

G. Roberts, P. Ludden, R. M. Allen, 2008, Annual review of microbiology.

Redox-dependent CO2 reduction activity of CO dehydrogenase from Rhodospirillum rubrum.

P. Ludden, C. Staples, J. Heo, 2001, Biochemistry.

Spectroelectrochemical Characterization of the Metal Centers in Carbon Monoxide Dehydrogenase (CODH) and Nickel-deficient CODH from Rhodospirillum rubrum(*)

P. Lindahl, V. Bandarian, P. Ludden, 1996, The Journal of Biological Chemistry.

Studies on Wheat stem rust resistance controlled at the Sr6 locus. III. Ethylene and disease reaction.

P. Ludden, J. Daly, P. Seevers, 1970 .

Characterization of VNFG, the delta subunit of the vnf-encoded apodinitrogenase from Azotobacter vinelandii. Implications for its role in the formation of functional dinitrogenase 2.

P. Ludden, R. Chatterjee, V. K. Shah, 1997, The Journal of biological chemistry.

Biochemical comparisons of resistance to wheat stem rust disease controlled by the Sr6 or Sr11 alleles

P. Ludden, J. Daly, P. Seevers, 1971 .

Purification and Characterization of the vnf-encoded Apodinitrogenase from Azotobacter vinelandii(*)

P. Ludden, R. M. Allen, R. Chatterjee, 1996, The Journal of Biological Chemistry.

The Role of Nif Proteins in Nitrogenase Maturation

L. Curatti, Dehua Zhao, P. Ludden, 2008 .

Spectroelectrochemical Characterization of the Metal Centers in Carbon Monoxide Dehydrogenase (CODH) and Nickel-deficient CODH from Rhodospirillum rubrum(*)

P. Lindahl, V. Bandarian, P. Ludden, 1996, The Journal of Biological Chemistry.

Reversible Regulation oftheNitrogenase IronProtein from Rhodospirillum rubrumbyADP-Ribosylation InVitro

P. Ludden, 1986 .

Paul pneumoniae Klebsiella Regulatory System in Reductase-Activating Glycohydrolase Dinitrogenase − Transferase Dinitrogenase Reductase ADP-Ribosyl Rhodospirillum rubrum Expression of the Dinitrogenase Reductase by Heterologous Reversible ADP-Ribosylation of and Its Homolog GlnK onIIEffect of P

Yaoping Zhang, G. Roberts, P. Ludden, 2000 .

On the structure of the nickel/iron/sulfur center of the carbon monoxide dehydrogenase from Rhodospirillum rubrum: an x-ray absorption spectroscopy study.

S. Ciurli, B. Hedman, P. Ludden, 1992, Proceedings of the National Academy of Sciences of the United States of America.