Results 31 to 40 of about 5,308 (136)

Effects of TiO2 nanoparticles on nutrition metabolism in silkworm fat body

Biology Open, 2016
Silkworm (Bombyx mori) is an important economic insect with a fat body that plays a crucial role in the storage and transfer of nutrients. It is also known that TiO2 nanoparticles (NPs) can improve feed efficiency and promote silk protein synthesis in ...
J. H. Tian, J. S. Hu, F. C. Li, M. Ni, Y. Y. Li, B. B. Wang, K. Z. Xu, W. D. Shen, B. Li   +8 more
doaj   +1 more source

Independent Modification of the Binding Sites for Adenosine Diphosphate and L-Threonine in Threonine Dehydratase

Journal of Biological Chemistry, 1969
Abstract The reactions between l-threonine dehydratase from Clostridium tetanomorphum and N-ethylmaleimide, tetranitromethane, iodine, fluorodinitrobenzene, or diazobenzene sulfonic acid were studied at 2° in order to determine the effects of chemical modification on certain kinetic parameters.
A, Vanquickenborne, J D, Vidra, A T, Phillips   +2 more
openaire   +2 more sources

Differential proteomic analysis of Clostridium perfringens ATCC13124; identification of dominant, surface and structure associated proteins

BMC Microbiology, 2009
Background Clostridium perfringens is a medically important clostridial pathogen causing diseases in man and animals. To invade, multiply and colonize tissues of the host, a pathogen must be able to evade host immune system, and obtain nutrients ...
Sengupta Nabonita, Kumar Ravi, Bansod Sunita, Alam Syed, Singh Lokendra   +4 more
doaj   +1 more source

The Role of ACT-Like Subdomain in Bacterial Threonine Dehydratases

PLoS ONE, 2014
In bacteria, threonine dehydratases could convert L-threonine to 2-ketobutyrate. Some threonine dehydratases contain only a catalytic domain, while others contain an N-terminal catalytic domain and a C-terminal regulatory domain composed of one or two ACT-like subdomains.
Xuefei Yu, Yanyan Li, Xiaoyuan Wang
openaire   +4 more sources

Threonine Is Catabolized by L-Threonine 3-Dehydrogenase and Threonine Dehydratase in Hepatocytes from Domestic Cats (Felis domestica) [PDF]

The Journal of Nutrition, 1996
Isolated hepatocytes were used to study threonine catabolism in kittens, and dietary threonine and crude protein were varied to study enzyme adaptation. Cells were isolated from 21-wk-old kittens which had been fed diets containing threonine at 4 or 8 g/kg of diet with either 200 or 500 g crude protein/kg of diet (2 x 2 factorial, n = 4/group ...
V A, Hammer, Q R, Rogers, R A, Freedland
openaire   +2 more sources

Reconstruction the feedback regulation of amino acid metabolism to develop a non-auxotrophic l-threonine producing Corynebacterium glutamicum

Bioresources and Bioprocessing
l-Threonine is an important feed additive with the third largest market size among the amino acids produced by microbial fermentation. The GRAS (generally regarded as safe) industrial workhorse Corynebacterium glutamicum is an attractive chassis for l ...
Jianhang Liu, Jiao Liu, Jiajun Li, Xiaojia Zhao, Guannan Sun, Qianqian Qiao, Tuo Shi, Bin Che, Jiuzhou Chen, Qianqian Zhuang, Yu Wang, Jibin Sun, Deqiang Zhu, Ping Zheng   +13 more
doaj   +1 more source

Covalent structure of biodegradative threonine dehydratase of Escherichia coli: homology with other dehydratases. [PDF]

Proceedings of the National Academy of Sciences, 1987
The 987-base-pair coding region of the tdc gene of Escherichia coli K-12 encoding biodegradative threonine dehydratase [Tdc; L-threonine hydro-lyase (deaminating), EC 4.2.1.16], previously cloned in this laboratory, was sequenced. The deduced polypeptide consists of 329 amino acid residues with a calculated Mr of 35,238.
P, Datta, T J, Goss, J R, Omnaas, R V, Patil   +3 more
openaire   +2 more sources

RidA proteins contribute to fitness of S. enterica and E.coli by reducing 2AA stress and moderating flux to isoleucine biosynthesis

Microbial Cell
Defining the physiological role of a gene product relies on interpreting phenotypes caused by the lack, or alteration, of the respective gene product.
Ronnie L. Fulton, Bryce R. Sawyer, Diana M Downs   +2 more
doaj   +1 more source

Altered expression of biodegradative threonine dehydratase in Escherichia coli mutants [PDF]

Journal of Bacteriology, 1982
A number of strains of Escherichia coli K-12 failed to synthesize significant amounts of biodegradative threonine dehydratase (EC 4.2.1.16) when grown anaerobically in tryptone-yeast extract medium, a condition which is optimal for the induction of this enzyme.
D, Merberg, P, Datta
openaire   +2 more sources

Relationship between threonine dehydratase and biosynthesis of tylosin in Streptomyces fradiae [PDF]

Journal of General Microbiology, 1991
To elucidate the repression mechanism of ammonium ions on the biosynthesis of tylosin in Streptomyces fradiae NRRL 2702, enzyme activities involved in the metabolism of the aspartate family of amino acids were evaluated in relation to the ammonium ion concentration and tylosin production.
S H, Lee, K J, Lee
openaire   +2 more sources