Results 1 to 10 of about 9,258 (171)

Role of aspartate ammonia-lyase in Pasteurella multocida [PDF]

BMC Microbiology, 2020
Background Pasteurella multocida is responsible for a highly infectious and contagious disease in birds, leading to heavy economic losses in the chicken industry. However, the pathogenesis of this disease is poorly understood.
Zui Wang, Li Li, Peng Liu, Chen Wang, Qin Lu, Lina Liu, Xiaozhong Wang, Qingping Luo, Huabin Shao   +8 more
doaj   +5 more sources

Insight into the Substrate Specificity of Lactobacillus paracasei Aspartate Ammonia-Lyase

Fermentation, 2023
Aspartate ammonia-lyase (AAL) catalyzes the reversible conversion reactions of aspartate to fumaric acid and ammonia. In this work, Lactobacillus paracasei LpAAL gene was heterologously expressed in Escherichia coli.
Yi-Hao Huang, Weir-Chiang You, Yung-Ju Chen, Jhih-Ying Ciou, Lu-Sheng Hsieh   +4 more
doaj   +2 more sources

Immobilization of the Aspartate Ammonia-Lyase from Pseudomonas fluorescens R124 on Magnetic Nanoparticles: Characterization and Kinetics. [PDF]

Chembiochem, 2022
AbstractAspartate ammonia‐lyases (AALs) catalyze the non‐oxidative elimination of ammonia from l‐aspartate to give fumarate and ammonia. In this work the AAL coding gene from Pseudomonas fluorescens R124 was identified, isolated, and cloned into the pET‐15b expression vector and expressed in E. coli.
Csuka P, Molnár Z, Tóth V, Imarah AO, Balogh-Weiser D, Vértessy BG, Vértessy BG, Poppe L.   +7 more
europepmc   +5 more sources

Novel bacterium Enterocloster sp. M3 promotes colorectal tumorigenesis via the production of the carcinogen styrene [PDF]

Gut Microbes
Background The bacterial marker ‘m3’ shows promise for the non-invasive diagnosis of colorectal cancer (CRC) and adenomas. However, the m3-harboring bacterium (M3) had not been successfully cultured.Objective This study aims to elucidate the functional ...
Yao Zeng, Yao Huang, Silin Ye, Effie Yin Tung Lau, Man Chun Chiu, Linda Fenske, Yuting Sun, Liting Jiang, Jiangying Chen, Yanqing Huang, Tingyu Zhou, Jiawei Lu, Jie Zhou, Shu Zheng, Francis Ka Leung Chan, Jessie Qiaoyi Liang   +15 more
doaj   +2 more sources

Combining Electrochemical Reduction with Biosynthesis for Directed Conversion of CO₂ into a Library of C3 Chemicals. [PDF]

Adv Sci (Weinh)
In the H‐type electrolytic cell, carbon dioxide is reduced to acetic acid via electro‐microbial catalysis. The simply processed acetic acid is further converted through biological fermentation into high‐value‐added products, including acrylic acid, L‐lactic acid, and β‐alanine.
Xiao K, Liang S, Zhao X, Peng Z, Luo R, Zong J, Zhou L, Su Y, Wang D.   +8 more
europepmc   +2 more sources

Enhanced Stability of Lactobacillus paracasei Aspartate Ammonia-Lyase via Electrospinning for Enzyme Immobilization. [PDF]

Polymers (Basel)
This study investigates the immobilization of Lactobacillus paracasei AAL (LpAAL) protein onto polyvinyl alcohol/nylon 6/chitosan nanofiber membranes using dextran polyaldehyde as a biodegradable cross-linker. Immobilization enhanced the enzyme’s stability, shifting its optimal reaction conditions from 40 °C to 45 °C and pH from 8.0 to 8.5.
Hsieh CY, Huang YH, Yu YT, Chang KW, Chen YJ, Hsieh LS.   +5 more
europepmc   +3 more sources

Cetobacterium somerae-derived argininosuccinic acid promotes intestinal and liver ureagenesis to alleviate ammonia intoxication [PDF]

Microbiome
Background Ammonia generated from amino acid metabolism is a cytotoxin that can adversely affect cell function and overall health and potentially lead to cellular toxicity and death due to its accumulation.
Shidong Wang, Xue Li, Muzi Zhang, Ming Li   +3 more
doaj   +2 more sources

Establishment of a TaqMan Quantitative Real-Time PCR for Detecting Lawsonia intracellularis [PDF]

Veterinary Sciences
Porcine proliferative enteropathy (PPE) is an infectious disease in pigs, caused by Lawsonia intracellularis (LI), affecting their intestines during growth and finishing stages, leading to higher production costs.
Zhiqiang Hu, Ranran Lai, Wei Xu, Ran Guan, Zhimin Zhang, Guangwen Yan, Guiying Hao   +6 more
doaj   +2 more sources

Inhibition of argininosuccinate synthase (ASS) affected ammonia excretion in yellow catfish Pelteobagrus fulvidraco during acute ammonia poisoning

Aquaculture Reports, 2022
Ammonia is toxic to most fish. Different fish have different treatment methods for ammonia toxicity, mainly including urea cycle and glutamine synthesis pathway, depending on their physiological status.
Pengwei Song, Ming Li, Muzi Zhang, Haibo Jiang, Jian Shao, Rixin Wang, Yunxia Qian, Dexiang Feng   +7 more
doaj   +1 more source

Dietary N-carbamylglutamate supplementation improves ammonia tolerance of juvenile yellow catfish Pelteobagrus fulvidraco

Frontiers in Physiology, 2023
Introduction: Ammonia has been of concern for its high toxicity to animals. N-carbamylglutamate (NCG) can reduce blood ammonia levels in mammals, but studies on ammonia tolerance in fish are insufficient.Methods: Juvenile yellow catfish were fed two ...
Dexiang Feng, Zhiguo Yang, Ming Li
doaj   +1 more source