Yoshikazu Nakamura

Isolation and Expression of Two Genes Encoding Eukaryotic Release Factor 1 from Paramecium tetraurelia (2002)

STEPHANIE KERVESTIN, OLIVIER A. GARNIER, ANDREY L. KARAMYSHEV, KOICHI ITO, YOSHIKAZU NAKAMURA, ERIC MEYER, ...

Paramecium tetraurelia, like some other ciliate species, uses an alternative nuclear genetic code where UAA and UAG are translated as glutamine and UGA is the only stop codon. It has been postulated...

Diamond Nucleation by Carbon Fibers on Unscratched Substrate by Hot-Filament Chemical Vapor Deposition. (1998)

Nakamura, Yoshikazu, Tamaki, Kazunori, Watanabe, Yoshihisa, Hirayama, Shigekazu

In order to overcome the difficulty of nucleation of diamond particles on unscratched substrates by the chemical vapor deposition (cvd) method, carbon fibers are introduced on unscratched substrates...

Synthesis of 0.4 Pb(Mg(1/3)Nb(2/3))O3-0.3 Pb(Mg(1/2)W(1/2))O3-0.3 PbTiO3 Ceramics by Metal Alkoxide Method, and Its Dielectric Properties. (1998)

Aruga, Atsushi, Nakamura, Yoshikazu, Aoi, Tsuneharu, Watanabe, Yoshihisa, Hirayama, Shigekazu

(0.4)Pb(Mg(1/3)Nb(2/3))O3-(0.3)Pb(Mg(1/2)W(1/2))O3-(0.3)PbTiO3 + (x)MgO (x = 0 to 0.04) were prepared by a metal alkoxide method. The percent of perovskite phase of the calcined powders increased...

Diamond Nucleation by Carbon Fibers on Unscratched Substrate by Hot-Filament Chemical Vapor Deposition. (1998)

Nakamura, Yoshikazu, Tamaki, Kazunori, Watanabe, Yoshihisa, Hirayama, Shigekazu

In order to overcome the difficulty of nucleation of diamond particles on unscrathed substrates by the chemical vapor deposition (CVD) method, carbon fibers are introduced on unscratched substrates...

Effects of Rifampicin resistant rpoB mutations on antitermination and interaction with nusA in Escherichia coli (1988)

Jin, Ding Jun, Cashel, Michael, Friedman, David I., Nakamura, Yoshikazu, Walter, William A., Gross, Carol A.

Rifampicin resistant (Rifr mutations map in the rpoB gene encoding the [beta] subunit of Escherichia coli RNA polymerase. We have used our collection of 17 sequenced Rifr mutations to investigate the...

Single amino acid substitution in prokaryote polypeptide release factor 2 permits it to terminate translation at all three stop codons

Ito, Koichi, Uno, Makiko, Nakamura, Yoshikazu

Prokaryotic translational release factors, RF1 and RF2, catalyze polypeptide release at UAG/UAA and UGA/UAA stop codons, respectively. In this study, we isolated a bacterial RF2 mutant (RF2*)...

The mechanism of tryptophan induction of tryptophanase operon expression: Tryptophan inhibits release factor-mediated cleavage of TnaC-peptidyl-tRNAPro

Gong, Feng, Ito, Koichi, Nakamura, Yoshikazu, Yanofsky, Charles

Expression of the tryptophanase (tna) operon of Escherichia coli is regulated by catabolite repression and tryptophan-induced transcription antitermination. In a previous study, we reproduced the...

Relationship between Mutations in Dihydropteroate Synthase of Pneumocystis carinii f. sp. hominis Isolates in Japan and Resistance to Sulfonamide Therapy

Takahashi, Takashi, Hosoya, Noriaki, Endo, Tokiomi, Nakamura, Tetsuya, Sakashita, Hiroyuki, Kimura, Kyoko, ...

We examined mutations in the dihydropteroate synthase (DHPS) genes of Pneumocystis carinii f. sp. hominis (P. carinii) strains isolated from 24 patients with P. carinii pneumonia (PCP) in Japan. DHPS...