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Kenzo Koizumi
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The Journal of Antibiotics | 1975

ISOLATION OF GALANTINS I AND II, WATER-SOLUBLE BASIC PEPTIDES

Jun'ichi Shoji; Ryuzi Sakazaki; Yoshiharu Wakisaka; Kenzo Koizumi; Mikao Mayama; Shinzo Matsuura

Two water-soluble basic antibiotics named galantins I and II were isolated from a strain resembling Bacillus pulvifaciens. Both antibiotics are peptides containing glycine, alanine, ornithine, lysine and some unknown ninhydrin-positive components. An approximate empirical formula C50±1H98±2O17N16 indicated for galantin I. These are active against some gram-positive, acid-fast and gram-negative bacteria.

The Journal of Antibiotics | 1976

A new antifungal antibiotic, trichostatin.

Naoki Tsuji; Masaaki Kobayashi; Kazuo Nagashima; Yoshiharu Wakisaka; Kenzo Koizumi

The Journal of Antibiotics | 1982

A selective isolation procedure for Micromonospora.

Yoshiharu Wakisaka; Yoshimi Kawamura; Yukio Yasuda; Kenzo Koizumi; Yoji Nishimoto

The Journal of Antibiotics | 1976

ISOLATION OF THREE NEW ANTIBIOTICS, THIOCILLINS I, II AND III, RELATED TO MICROCOCCIN P

Jun'ichi Shoji; Hiroshi Hinoo; Yoshiharu Wakisaka; Kenzo Koizumi; Mikao Mayama; Shinzo Matsuura; Koichi Matsumoto

The Journal of Antibiotics | 1977

Isolation of two new polymyxin group antibiotics. Studies on antibiotics from the genus Bacillus. XX.

Jun'ichi Shoji; Hiroshi Hinoo; Yoshiharu Wakisaka; Kenzo Koizumi; Mikao Mayama; Shingo Matsuura

The Journal of Antibiotics | 1980

Hygromycin and epihygromycin from a bacterium, Corynebacterium equi No. 2841.

Yoshiharu Wakisaka; Kenzo Koizumi; Yoji Nishimoto; Masaaki Kobayashi; Naoki Tsuji

Applied and Environmental Microbiology | 1982

Asporogenous Bacillus thuringiensis Mutant Producing High Yields of δ-Endotoxin

Yoshiharu Wakisaka; Emiko Masaki; Kenzo Koizumi; Yoji Nishimoto; Yasuhisa Endo; Masaji S. Nishimura; Junko Nishiitsutsuji-Uwo

The Journal of Antibiotics | 1975

ISOLATION OF TWO NEW RELATED PEPTIDE ANTIBIOTICS, CEREXINS A AND B

Jun'ichi Shoji; Hiroshi Hinoo; Yoshiharu Wakisaka; Kenzo Koizumi; Mikao Mayama; Shinzo Matsuura; Koichi Matsumoto

The Journal of Antibiotics | 1976

ISOLATION OF A NEW ANTIBIOTIC 333-25, RELATED TO ANTIBIOTIC EM 49

Jun'ichi Shoji; Hiroshi Hinoo; Yoshiharu Wakisaka; Kenzo Koizumi; Mikao Mayama; Shinzo Matsuura; Koichi Matsumoto

The Journal of Antibiotics | 1975

ISOLATION OF A NEW PEPTIDE ANTIBIOTIC TL-119

Jun'ichi Shoji; Hiroshi Hinoo; Yoshiharu Wakisaka; Kenzo Koizumi; Mikao Mayama

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