منابع مشابه
Extracellular Maltase of Bacillus brevis.
Bacillus brevis NRRL B-4389 produced extracellular maltase (alpha-glucosidase; EC 3.2.1.20) only in the presence of short alpha-1,4-glucosidic polymers, such as maltose and maltotriose. An optimum medium was developed; it contained 2.5% maltose, 0.5% nonfat dry milk, 0.4% yeast extract, and 0.01% CaCl(2). The enzyme was produced extracellularly during the logarithmic phase of growth; no cell-bo...
متن کاملFormation of Tyrothricin in Submerged Cultures of Bacillus Brevis.
Since the isolation of tyrothricin from cultures of Bacillus brevis (Dubos, 1939), numerous papers have appeared dealing with the chemical and biological properties of this bactericidal agent and its components, gramicidin and tyrocidine (Hotchkiss and Dubos, 1940; Dubos and Hotchkiss, 1941; Tishler, Stokes, Trenner and Conn, 1941; Christensen, Edwards and Piersma, 1941; Lipmann, Hotchkiss and ...
متن کاملThe cellular D-amino acids of Bacillus brevis.
In a previous paper (1) evidence was presented that acid hydrolysates of the cellular material of BaciZZus brevis (ATCC 10068) contained an unusually high content of amino acids of the D configuration, amounting to over 10 per cent of the total amino acids or 5 per cent of the dry weight of the cells. The n-amino acids were shown to exist in the intact cells, and not to result from racemization...
متن کاملTatumine, a peptide from Bacillus brevis Vm4-572-403.
The mutant 572-403 of Bacillus brevis Vm4 was isolated from N-methyl-N'-nitro-N-nitroso guanidine (nitrosoguanidine)-treated cultures of the parental strain. The mutant produces tatumine and edeine B when grown in a defined medium at 40 degrees C. Tatumine is composed of spermidine, glycine, isoserine, and an unidentified ninhydrin-positive compound; it has a molecular weight of less than 730 d...
متن کاملNucleotide-dependent inactivation of RNA polymerase from Bacillus brevis.
RNA polymerase has been purified from vegetative cells of Bacillus brevis and resolved into "core" enzyme and sigma factor. The purified enzyme is rapidly inactivated by incubation at low temperatures in the presence of 1-2 mM ATP, dATP, or NAD(+), while other nucleotides at this concentration have little or no effect. Inactivation is not accompanied by the incorporation of an adenylyl or phosp...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1957
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)64998-1