The Journal of Antibiotics
Online ISSN : 1881-1469
Print ISSN : 0021-8820
ISSN-L : 0021-8820
OKILACTOMYCIN, A NOVEL ANTIBIOTIC PRODUCED BY A STREPTOMYCES SPECIES
I. TAXONOMY, FERMENTATION, ISOLATION AND CHARACTERIZATION
HARUMITSU IMAIKEN-ICHI SUZUKIMOTO MORIOKAYousou NUMASAKISHIGENOBU KADOTAKOJI NAGAITSUTOMU SATOMASARU IWANAMITAKESHI SAITO
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1987 Volume 40 Issue 11 Pages 1475-1482

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Abstract

Okilactomycin, a novel antibiotic, was isolated from the culture filtrate of a strain of actinomycetes. The producing organism, strain YP-02908L, was identified as Streptomyces griseoflavus subsp. zamamiensis subsp. nov. The antibiotic was extracted with ethyl acetate and purified by silica gel column chromatography. It was obtained as colorless prisms from a dichloromethane solution. It exhibited weak antimicrobial activity against Grampositive organisms in vitro. It also exhibited antitumor activity against Ehrlich ascites carcinoma in vivo. The apparent molecular formula of okilactomycin was determined as C24H32O6. It is a new member of the lactone group antibiotics.

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© Japan Antibiotics Research Association
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