Results 31 to 40 of about 392,541 (251)

Selection of the Amino Acid and Saccharide That Increase the Tetracycline Susceptibility of Vibrio splendidus

Frontiers in Veterinary Science, 2022
Bacterial persister cells are a subpopulation of isogenic bacteria with characteristics of reduced metabolic activity and multidrug antibiotic resistance.
Guohua Jiang, Guohua Jiang, Yanan Li, Yanan Li, Ya Li, Ya Li, Weiwei Zhang, Weiwei Zhang, Chenghua Li, Chenghua Li, Chenghua Li   +10 more
doaj   +1 more source

Crystal structures of the elusive Rhizobium etli l-asparaginase reveal a peculiar active site

Nature Communications, 2021
L-asparaginases catalyse the hydrolysis of L-asparagine to L-aspartic acid and ammonia. Here, the authors present high resolution crystal structures of Rhizobium etli L-asparaginase that contains a Zn2+ binding site without a catalytic role and discuss ...
Joanna I. Loch, Barbara Imiolczyk, Joanna Sliwiak, Anna Wantuch, Magdalena Bejger, Miroslaw Gilski, Mariusz Jaskolski   +6 more
doaj   +1 more source

N-acetyl-L-aspartic acid-N [PDF]

, 2002
In this study, we generated and analyzed the side-chain conformational potential energy hypersurfaces for each of the nine possible backbone conformers for N-acetyl-L-aspartic acid-N' methylamide.
A. Perczel, J. C.P. Koo, G. A. Chass, J. Gy. Papp, I. G. Csizmadia, A. Varro, Ö. Farkas, L. L. Torday   +7 more
core   +1 more source

Two techniques of age estimation in cetaceans: GLGs in teeth and earplugs, and measuring the AAR rate in eye lens nucleus

NAMMCO Scientific Publications, 2017
The ages of three species of cetaceans were estimated by counting the growth layer groups (GLG) and measuring the aspartic acid racemization rate (kAsp) by what is referred to as the Aspartic Acid Racemization (AAR) technique.
Nynne H Nielsen, Gísli A. Víkingsson, Steen H. Hansen, Susanne Ditlevsen, Mads Peter Heide-Jørgensen   +4 more
doaj   +1 more source

Effect of insect cuticular compounds on appressorium formation and metabolic activity in Metarhizium anisopliae

Frontiers in Microbiology
The rate of appressoria formation following conidial germination in Metarhizium anisopliae is closely associated with its pathogenicity. This study investigated the effects of insect cuticular compounds on the formation and metabolism in M. anisopliae by
Yang Xu, Canxia Wu, Dongxu Wang, Huaxin Cai, Jingyang Ni, Wenzhe Li, Yinghua Tong   +6 more
doaj   +1 more source

PREPARATION OF L-ASPARTIC ACID BY BACTERIAL ASPARTASE

The Journal of General and Applied Microbiology, 1959
(1) 強力なアスパーターゼを持つことが知られている二,三の菌種と当研究所保存の菌種,合わせて30余株からアスパーターゼの最も強力と思われたEscherichia coli No. 2を選び,アスパーターゼの若干の性質を検討した. (2) アスパーターゼはフマール酸ソーダ塩及びアンモニウム塩の飽和溶液(各々遊離酸として前者約10%,後着約20%)に於ても反応させ得ることが分り,更に50g/100m1ものフマール酸アンモニウム懸濁液に, E. coli No. 2の乾燥菌体を添加, 37°, pH7.2～7.4にて攪拌を続け1乃至3日間に,フマール酸をほぼ定量的にL-アスパラギン酸に変えることが出来た.
KITAHARA, Kakuo, FUKUI, Sakuzo, MISAWA, Masanaru   +2 more
openaire   +3 more sources

Biostimulants induce positive changes in the radish morpho-physiology and yield

Frontiers in Plant Science, 2022
An ever-increasing population has issued an open challenge to the agricultural sector to provide enough food in a sustainable manner. The upsurge in chemical fertilizers to enhance food production had resulted in environmental problems.
Qurat-Ul-Ain Raza, Muhammad Amjad Bashir, Abdur Rehim, Rafia Ejaz, Hafiz Muhammad Ali Raza, Hafiz Muhammad Ali Raza, Umbreen Shahzad, Faraz Ahmed, Yucong Geng   +8 more
doaj   +1 more source

Reduced L-Arginine/Lysine and L-Arginine/Aspartic Acid Ratios Aorta from Watanabe Heritable Hyperlipidemic (WHHL) Rabbit [PDF]

, 1992
L-Arginine is the endogenous source of nitric oxide in the endothelial cells of blood vessels. In thoracic aorta from Watanabe heritable hyperlipidaemic (WHHL) rabbits, the L-arginine/lysine and L-arginine/aspartic acid ratios were reduced in comparison ...
FASSINA G., CHINELLATO A, POLVERINO DE LAURETO, PATRIZIA, RAGAZZI, EUGENIO   +3 more
core   +1 more source

Plasma L-aspartic acid predicts the risk of gastric cancer and modifies the primary prevention effect: a multistage metabolomic profiling and Mendelian randomization study

Cancer Biology & Medicine
Objective: Based on multistage metabolomic profiling and Mendelian randomization analyses, the current study identified plasma metabolites that predicted the risk of developing gastric cancer (GC) and determined whether key metabolite levels modified the
Mengyuan Wang, Zhouyi Yin, Hengmin Xu, Zongchao Liu, Sha Huang, Wenhui Wu, Yang Zhang, Tong Zhou, Weicheng You, Kaifeng Pan, Wenqing Li   +10 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source