N. Madsen

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Structural basis for the activation of glycogen phosphorylase b by adenosine monophosphate.

S. Sprang, S. Withers, E. Goldsmith, 1991, Science.

Allosteric properties of phosphorylase b. II. Comparison with a kinetic model.

N. Madsen, S. Shechosky, 1967, The Journal of biological chemistry.

Synthesis of C4-dicarboxylic acids from acetate by a glyoxylate bypass of the tricarboxylic acid cycle.

N. Madsen, H. Kornberg, H L KORNBERG, 1957, Biochimica et biophysica acta.

Phosphorylation state of acetyl-coenzyme A carboxylase. II. Variation with nutritional condition.

N. Madsen, H. Jamil, 1987, The Journal of biological chemistry.

Phosphorylation state of acetyl-coenzyme A carboxylase. I. Linear inverse relationship to activity ratios at different citrate concentrations.

N. Madsen, H. Jamil, 1987, The Journal of biological chemistry.

The occurrence and enzymic synthesis of glycogen in extracts of Agrobacterium tumefaciens.

N. Madsen, 1961, Biochimica et biophysica acta.

The inhibition of glycogen phosphorylase by uridine diphosphate glucose.

N. Madsen, 1961, Biochemical and biophysical research communications.

The interaction of muscle phosphorylase with p-chloromercuribenzoate. III. The reversible dissociation of phosphorylase.

N. Madsen, F. Gurd, 1956, The Journal of biological chemistry.

Improvement of limit of diffraction and useful X-ray lifetime of crystals of glycogen debranching enzyme

N. Madsen, P. Fitzgerald, 1986 .

Pyridoxal phosphate is not the acid catalyst in the glycogen phosphorylase catalytic mechanism.

S. Withers, N. Madsen, S. Shechosky, 1982, Biochemical and biophysical research communications.

Acetyl-CoA Carboxylase: Correlation of Phosphorylation State with Allosteric Properties and Physiological State

N. Madsen, H. Jamil, 1988 .

Inactivation of phosphorylase by cyanate.

N. Madsen, C. Huang, 1966, Biochemistry.

Low-resolution structure of the glycogen phosphorylase a monomer and comparison with phosphorylase b

R. Fletterick, N. Madsen, L. Johnson, 1976 .

Crystallization of glycogen debranching enzyme.

N. Madsen, M. James, K. Hayakawa, 1984, Journal of Molecular Biology.

X-ray crystallographic and kinetic studies of oligosaccharide binding to phosphorylase.

R. Fletterick, N. Madsen, J. Sygusch, 1978, The Journal of biological chemistry.

Kinetic mechanism of phosphorylase a. II. Isotope exchange studies at equilibrium.

N. Madsen, W. A. Bridger, H. Engers, 1970, Canadian Journal of Biochemistry.

Kinetic mechanism of phosphorylase b. Rates of initial velocities and of isotope exchange at equilibrium.

N. Madsen, W. A. Bridger, H. Engers, 1969, The Journal of biological chemistry.

The binding of glycogen and phosphorylase.

N. Madsen, C. Cori, 1958, The Journal of biological chemistry.

Studies on the biological control of glycogen metabolism in liver. I. State and activity pattern of glycogen phosphorylase.

N. Madsen, V. Maddaiah, 1966, Biochimica et biophysica acta.

The metabolism of C2 compounds in microorganisms. 3. Synthesis of malate from acetate via the glyoxylate cycle.

N. Madsen, H. Kornberg, 1958, The Biochemical journal.

Catalytic site of glycogen phosphorylase: structure of the T state and specificity for alpha-D-glucose.

R J Fletterick, S R Sprang, S. Sprang, 1982, Biochemistry.

9 Glycogen Phosphorylase

N. Madsen, 1986 .

Site-site interactions in glycogen phosphorylase b probed by ligands specific for each site.

R. Fletterick, N. Madsen, S. Shechosky, 1983, Biochemistry.

Identical structural changes induced in glycogen phosphorylase by two nonexclusive allosteric inhibitors.

S. Withers, N. Madsen, B. D. Sykes, 1979, Biochemistry.

Allosteric transitions of phosphorylase a and the regulation of glycogen metabolism.

R. Fletterick, N. Madsen, KasvinskyPJ, 1978, The Journal of biological chemistry.

Fluorescence quenching, a tool for probing conformational changes in glycogen phosphorylase.

N. Madsen, K. Honikel, 1973, Canadian journal of biochemistry.

Catalytic site of glycogen phosphorylase: structural changes during activation and mechanistic implications.

S. Sprang, S. Withers, R. Fletterick, 1982, Biochemistry.

Analysis of the surface topography of glycogen phosphorylase a: implications for metabolic interconversion and regulatory mechanisms.

S. Sprang, R. Fletterick, N. Madsen, 1979, Canadian journal of biochemistry.

Activity of glycogen phosphorylase in the crystalline state.

N. Madsen, P. Kasvinsky, 1976, The Journal of biological chemistry.

A systematic approach to isomorphous replacement using a series of simple charged mercurials.

S. Withers, R. Fletterick, N. Madsen, 1979, Biochemical and biophysical research communications.

Structure of glycogen phosphorylase a at 3.0 A resolution and its ligand binding sites at 6 A.

R. Fletterick, N. Madsen, J. Sygusch, 1976, The Journal of biological chemistry.

Kinetics of purified liver phosphorylase.

N. Madsen, V. Maddaiah, N B Madsen, 1966, The Journal of biological chemistry.

Multiple phosphate positions in the catalytic site of glycogen phosphorylase: Structure of the pyridoxal‐5′‐pyrophosphate coenzyme‐substrate analog

S. Sprang, S. Withers, N. Madsen, 1992, Protein science : a publication of the Protein Society.

Structural changes in glycogen phosphorylase induced by phosphorylation

S. Sprang, E. Goldsmith, R. Fletterick, 1988, Nature.

The regulation of glycogen phosphorylase alpha by nucleotide derivatives. Kinetic and x-ray crystallographic studies.

R. Fletterick, N. Madsen, J. Sygusch, 1978, The Journal of biological chemistry.

Location of pyridoxal phosphate in glycogen phosphorylase a.

R. Fletterick, N. Madsen, J. Sygusch, 1977, Proceedings of the National Academy of Sciences of the United States of America.

An essential arginine residue in the active-site pocket of glycogen phosporylase.

R. Fletterick, N. Madsen, J. Sygusch, 1977, Canadian journal of biochemistry.

The binding of adenylic acid by muscle phosphorylase.

N. Madsen, C. Cori, 1957, The Journal of biological chemistry.

Studies on allosteric phenomena in glycogen phosphorylaseb

N. Madsen, P. F. Lue, K. Honikel, 1976, Molecular and Cellular Biochemistry.

X-rays reveal phosphorylase architecture

R. Fletterick, N. Madsen, 1977 .

Allosteric properties of phosphorylase b

N. Madsen, 1964 .

The inhibition of muscle phosphorylase by p-chloromercuribenzoate.

N. Madsen, C. Cori, 1955, Biochimica et biophysica acta.

The interaction of phosphorylase with protamine.

N. Madsen, C. Cori, 1954, Biochimica et biophysica acta.

Active form of pyridoxal phosphate in glycogen phosphorylase. Phosphorus-31 nuclear magentic resonance investigation.

S. Withers, N. Madsen, B. D. Sykes, 1981, Biochemistry.

Nucleotide activation of glycogen phosphorylase b occurs only when the nucleotide phosphate is in a dianionic form.

S. Withers, N. Madsen, 1980, Biochemical and biophysical research communications.

The sulfhydryl groups of muscle phosphorylase. IV. Reactivities as related to changes in protein structure.

N. Madsen, L. Smillie, O. Avramovic-Zikic, 1970, The Journal of biological chemistry.

The structures and related functions of phosphorylase a.

R. Fletterick, N. Madsen, 1980, Annual review of biochemistry.

Analysis of an allosteric binding site: the nucleoside inhibitor site of phosphorylase alpha.

S. Sprang, R. Fletterick, N. Madsen, 1982, Biochemistry.

CHAPTER 21 – Mercaptide-Forming Agents1

N. Madsen, 1963 .

Test for isocitritase and malate synthetase in animal tissues.

N. Madsen, N B MADSEN, 1958, Biochimica et biophysica acta.

The tricarboxylic acid and glyoxylate cycles in Xanthomonas phaseoli (XP8).

N. Madsen, R. Hochster, 1959, Canadian journal of microbiology.

On the source of the alkaline phosphatase in rat serum.

N. Madsen, J. Tuba, 1952, The Journal of biological chemistry.

The crystal structure of phosphorylase b at 6 Å resolution

N. Madsen, L. Johnson, K. Wilson, 1974 .

The relationship of dietary factors to rat serum alkaline phosphatase. II. The effect of total food consumption, methionine, choline, and vitamin B12 in normal and alloxan diabetic adult rats.

N. Madsen, J. Tuba, 1952, Canadian journal of medical sciences.

Binding of glycogen, oligosaccharides, and glucose to glycogen debranching enzyme.

N. Madsen, J. Takrama, 1988, Biochemistry.

Reassessment of the catalytic mechanism of glycogen debranching enzyme.

S. Withers, N. Madsen, C. Braun, 1991, Biochemistry.

31P NMR relaxation studies of the activation of the coenzyme phosphate of glycogen phosphorylase. The role of motion of the bound phosphate.

S. Withers, N. Madsen, S G Withers, 1985, Biophysical Journal.

The sulfhydryl groups of muscle phosphorylase. I. Number and reactivity.

N. Madsen, M. Battell, L. Smillie, 1968, Canadian journal of biochemistry.

The sulfhydryl groups of muscle phosphorylase. 3. Identification of cysteinyl peptides related to function.

N. Madsen, M. Battell, L. Smillie, 1968, The Journal of biological chemistry.

Kinetic mechanism of phosphorylase a. I. Initial velocity studies.

N. Madsen, S. Shechosky, H. Engers, 1970, Canadian journal of biochemistry.

Covalently activated glycogen phosphorylase: a phosphorus-31 nuclear magnetic resonance and ultracentrifugation analysis.

S. Withers, N. Madsen, B. D. Sykes, 1982, Biochemistry.

The effect of anions on the activity of phosphorylase b.

N. Madsen, H. Engers, 1968, Biochemical and biophysical research communications.

Distinction between substrate- and enzyme-directed effects of modifiers of rabbit liver phosphorylase a phosphatases.

N. Madsen, M. Monanu, 1987, Biochemistry and cell biology = Biochimie et biologie cellulaire.

Sulphydryl groups of muscle phosphorylase. II. Thiol sequences and subunit structure.

N. Madsen, L. Smillie, C. G. Zarkadas, 1968, Journal of molecular biology.

Relaxation of individual transitions in an AX spectrum. Use of interference terms to separate the dipolar and chemical-shift anisotropy contributions to the relaxation of 31P and 19F nuclei in macromolecules

S. Withers, N. Madsen, B. Sykes, 1985 .

Molecular cloning, sequencing, and analysis of the cDNA for rabbit muscle glycogen debranching enzyme.

N. Madsen, P. Bilous, R. Bleackley, 1993, Archives of biochemistry and biophysics.

Allosteric properties of phosphorylase b. 3. Inactivation by cyanate and binding studies.

N. Madsen, O. Avramović, 1968, The Journal of biological chemistry.

Isotope exchange at equilibrium as a test for homotropic cooperativity of allosteric enzymes.

N. Madsen, W. A. Bridger, H. Engers, 1970, Biochemistry.

Metabolite Effects on Structure-Function Relationships in Glycogen Phosphorylase

N. Madsen, 1972 .

Electron microscopy of glycogen degrading enzymes

N. Madsen, P. Fitzgerald, D. Scraba, 1988, FEBS letters.

THE BIOLOGICAL CONTROL OF GLYCOGEN METABOLISM IN AGROBACTERIUM TUMEFACIENS

N. Madsen, 1963 .

Effects of oligosaccharide binding on glycogen debranching enzyme activity and conformation.

N. Madsen, K. Zucker, D. Fry, 1995, Biochemistry.

The oxidation of succinate in extracts of xanthomonas phaseoli.

N. Madsen, 1960, Canadian journal of biochemistry and physiology.

Kinetics of the reaction of p-chloromercuribenzoate with the sulfhydryl groups of glutathione, 2-mercaptoethanol, and phosphorylase b.

N. Madsen, B. Hasinoff, O. Avramovic-Zikic, 1971, Canadian journal of biochemistry.

Evidence for direct phosphate-phosphate interaction between pyridoxal phosphate and substrate in the glycogen phosphorylase catalytic mechanism.

S. Withers, N. Madsen, T. Fukui, 1981, The Journal of biological chemistry.

Periodation of the glucan of Agrobacterium tumefaciens with recovery of cleavage products

N. Madsen, 1962 .

The relationship of dietary factors to rat serum alkaline phosphatase. III. The effect of dietary protein levels.

N. Madsen, B. Jelinek, J. Tuba, 1952, Canadian Journal of Medical Sciences.

Identification of Asp 549 as the catalytic nucleophile of glycogen-debranching enzyme via trapping of the glycosyl-enzyme intermediate.

S. Withers, N. Madsen, C. Braun, 1996, Biochemistry.

Studies on the biological control of glycogen metabolism in liver. 3. Subcellular distribution of glycogen metabolizing enzymes.

N. Madsen, V. Maddaiah, 1968, Canadian journal of biochemistry.

Regulation of the dephosphorylation of glycogen phosphorylase a and synthase b by glucose and caffeine in isolated hepatocytes.

R. Fletterick, N. Madsen, P. Kasvinsky, 1981, Canadian journal of biochemistry.

STRUCTURE‐FUNCTION RELATIONSHIPS IN GLYCOGEN PHOSPHORYLASE WITH RESPECT TO ITS CONTROL CHARACTERISTICS *

N. Madsen, K. Honikel, O. Avramovic-Zikic, 1973, Annals of the New York Academy of Sciences.

The Regulation of Glycogen Phosphorylase a by Nucleotide Derivatives

R. Fletterick, N. Madsen, J. Sygusch, 2011 .

[The role of alkaline phosphatase in intestinal absorption. I. The kinetics of phosphatase action on various substrates].

N. Madsen, J. Tuba, 1953, Canadian journal of medical sciences.