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Quantitative determination of cytochrome P-450 in rat liver homogenate.

• Takashi Matsubara, Masahiko Koike, Akira Touchi, Yoshihiro Tochino, Koichi Sugeno
• Analytical biochemistry
• 1976

A kinetic study of the alpha-keto acid dehydrogenase complexes from pig heart mitochondria.

• Maha. M. Hamada, Kichiko Koike, Y Nakaula, Takehisa Hiraoka, Masahiko Koike
• Journal of biochemistry
• 1975

The kinetic mechanisms of the 2-oxoglutarate and pyruvate dehydrogenease complexes from pig heart mitochondria were studied at pH 7.5 and 25 degrees. A three-site ping-pong mechanism for the actin of… (More)

alpha-Keto acid dehydrogenation complexes. III. Purification and properties of dihydrolipoic dehydrogenase of Escherichia coli.

• Masahiko Koike, Praful Shah, Lester J. Reed
• The Journal of biological chemistry
• 1960

Studies on the nature and reactions of protein-bound lipoic acid.

• Lester J. Reed, Masahiko Koike, M E Levitch, Franklin R. Leach
• The Journal of biological chemistry
• 1958

Studies on the activation of an apopyruvate dehydrogenation system obtained from extracts of lipoic acid-deficient Streptococcus jaecalis cells indicated that in its functional form lipoic acid is… (More)

Sex in Pieris rapæ L. and the Pteridin Content of their Wings

• Kenichi Makino, Kiyoo Satoh, Masahiko Koike, N Ueno
• Nature
• 1952

WHEN Pieris rapæ L. was photographed under the illumination of ultra-violet light passing through the filter UV-D1 obtained from the Matsuda Lamp Co., the wings of female butterflies, in accordance… (More)

Lipoamide dehydrogenase from human liver.

• Soyuki Ide, Takao Hayakawa, Kouji Okabe, Masahiko Koike
• The Journal of biological chemistry
• 1967

Lipoamide dehydrogenase (reduced nicotinamide adenine dinucleotide :lipoamide oxidoreductase, EC 1.6.4.3) has been isolated from acid-precipitated human liver particles in a highly purified state by… (More)

Characterization and nucleotide sequence of the gene encoding the human pyruvate dehydrogenase alpha-subunit.

• Kenichi Koike, Yoshishige Urata, Susumu Matsuo, Masahiko Koike
• Gene
• 1990

Genomic clones encompassing the entire gene (PDH alpha) encoding the human pyruvate dehydrogenase alpha-subunit (PDH alpha) have been isolated by screening a leukocyte genomic library in the cloning… (More)

Structure, assembly and function of mammalian alpha-keto acid dehydrogenase complexes.

• Masahiko Koike, Kichiko Koike
• Advances in biophysics
• 1976

An attempt has been made to provide a description of the mammalian alpha-keto acid dehydrogenase multienzyme complexes, especially with respect to the structure, assembly and function of PDC and OGDC… (More)

Gluconeogenesis stimulated by extracellular ATP is triggered by the initial increase in the intracellular Ca2+ concentration of the periphery of hepatocytes.

• Masahiko Koike, Tadashi Kashiwagura, Noriaki Takeguchi
• The Biochemical journal
• 1992

Extracellular ATP, ADP and GTP increased the intracellular free Ca2+ concentration ([Ca2+]i) in a suspension of isolated rat hepatocytes. The [Ca2+]i was determined by measuring fura-2 fluorescence,… (More)

Fluorescent analysis of alpha-keto acids in serum and urine by high-performance liquid chromatography.

• Kichiko Koike, Masahiko Koike
• Analytical biochemistry
• 1984

A procedure for rapid separation and microquantitative determination of various alpha-keto acids in serum and urine was developed. The procedure used reverse-phase high-performance liquid… (More)

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