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Digitale Medien

Degradative Pathway of L -Leucine in Proteus vulgaris (1961)

SASAKI, SHOJI

[s.l.] : Nature Publishing Group

Nature 189 (1961), S. 400-400

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Proteus vulgaris was cultivated at 37 C. for 18 hr. on peptone-broth agar slant. The cells were harvested, washed three times with de-ionized water, and suspended in 2 X 10~2 M phosphate buffer, pH. 7 -2. The washed cell suspension was disrupted by sonic oscillation in a Kubota vibrator, 10 ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/189400a0

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Digitale Medien

Na+-driven ATP synthesis of a psychrophilic marine bacterium, Vibrio sp. strain ABE-1 (1991)

Takada, Yasuhiro ; Fukunaga, Noriyuki ; Sasaki, Shoji

Oxford, UK : Blackwell Publishing Ltd

FEMS microbiology letters 82 (1991), S. 0

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ISSN: 1574-6968

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Biologie

Notizen: Abstract: In vivo ATP synthesis of a psychrophilic marine bacterium, Vibrio sp. strain ABE-1, derived from endogenous respiration, was examined. ATP was synthesized at both pH 6.5 and 8.5 after the start of the endogenous respiration by supplying O2 to the anaerobic cell suspension. The ATP synthesis at pH 6.5, but not at pH 8.5, was completely inhibited by a H+ conductor, carbonylcyanide m-chlorophenylhydrazone (CCCP). The CCCP-resistant ATP synthesis at pH 8.5 was strongly inhibited by an inhibitor of the respiration-dependent primary Na+ pump, 2-n-heptyl-4-hydroxyquinolineN-oxide, and essentially required Na+. These results show that this bacterium synthesizes ATP at pH 6.5 by electrochemical potentials across the membrane Δ∼μH+, whereas at pH 8.5 by Δ∼μNa+ but not Δ∼μH+.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1574-6968.1991.tb04869.x

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Digitale Medien

Synthesis in vitro of very long chain fatty acids in Vibrio sp. strain ABE-1 (1992)

Morita, Naoki ; Okajima, Nobuhiro ; Gotoh, Masaru ; [weitere]

Springer

Archives of microbiology 157 (1992), S. 223-228

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ISSN: 1432-072X

Schlagwort(e): Fatty acids synthetase ; Very long chain fatty acids ; Psychrophilic bacteria ; Vibrio sp

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Abstract The activity of fatty acid synthetase (FAS) from Vibrio sp. strain ABE-1 required the presence of acyl carrier protein and was completely inhibited by thiolactomycin, an inhibitor specific for a type II FAS. These observations indicate that this enzyme is a type II FAS. Analysis by gas-liquid chromotography of the reaction products synthesized in vitro from [2-14C]malonyl-CoA by the partially purified FAS revealed, in addition to 16-and 18-carbon fatty acids which are normal constituents of this bacterium, the presence of fatty acids with very long chains. These fatty acids were identified as saturated and mono-unsaturated fatty acids with 20 up to as many as 30 carbon atoms. The longest fatty acids normally found in this bacterium contain 18-carbon atoms. These results suggest that the FAS from Vibrio sp. strain ABE-1 has potentially the ability to synthesize fatty acids with very long chains.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00245154

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