THE AMINO ACID REQUIREMENTS OF LACTOBACILLUS ARABINOSUS 17-5
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چکیده
منابع مشابه
The intracellular teichoic acid from Lactobacillus arabinosus 17-5.
It has been shown that extracts of certain bacteria contain both glycerol teichoic acid and ribitol teichoic acid, although the walls of these organisms contain only the ribitol compounds (Armstrong, Baddiley, Buchanan, Carss & Greenberg, 1958). The conclusion that glycerol teichoic acids occur in an unspecified region beneath the wall was substantiated in a more extensive survey (Baddiley & Da...
متن کاملAmino Acid Nutrition of Lactobacillus Arabinosus
The growth factors required by Lactobacillus arabinosus 17-5 have been studied extensively by Snell and Wright (I), Isbell (2), and Lewis (3). Investigation of the nitrogen requirement has been limited. Hydrolyzed casein has been found to supply the essential nitrogen when supplemented with tryptophane and cystine. Glutamic acid has been found essential (4), and quantitative levels have been de...
متن کاملThe effect of 3-indoleacetic acid on the response of Lactobacillus arabinosus 17-5 to nicotinamide.
Lactobacillus arabinosus 17-5 has been widely used as an assay organism for nicotinic acid (NA) since the development of the method by Snell and Wright (1). Although it has been realized that other substances present in tissue extracts may interfere with the bioassay, the nature of such substances has not been elucidated. During an investigation of tryptophan metabolism in the pea plant, we stu...
متن کاملThe synthesis of cozymase from nicotinic acid and its derivatives by Lactobacillus arabinosus 17-5.
to leave a phenol-insoluble mucoid. This contains a substance with the characteristics of a mucopolysaccharide-protein complex. 5. The water-soluble mucoids contain a complex which is formed by interaction between the phenolinsoluble mucoids and a water-soluble protein of the cornea. 6. The acid mucopolysaccharide can be prepared free from protein by incubation with trypsin. Galactose, glucosam...
متن کاملFailure of folic acid to antagonize sulfanilamide non-competitively in the growth of Lactobacillus arabinosus 17-5.
It has been postulated by Lampen and Jones (1) that, though less potent than p-aminobenzoic acid (PABA), folic acid (FA) is a growth factor for Lactobacillus arabirwsus 17-5, and that PABA and p-aminobenzoylglutamic acid (PABG) indirectly are growth stimulants for this organism because they are utilized for the synthesis of FA. It was shown by us in the preceding paper (2) that (a) the aged FA ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1944
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)72104-2