Results 21 to 30 of about 3,929 (139)

Developmental aspects of uridine diphosphate galactose 4-epimerase in rat intestine [PDF]

Biochemical Journal, 1971
Kinetic and developmental characteristics of rat intestinal UDP-galactose 4-epimerase activity have been examined. The enzyme in the adult rat had a Vmax. value 2–3 times higher than that of the newborn animal, but the Km values for the enzyme in the newborn and adult rat were the same (0.17mm). No differences in epimerase activity were found along the
A, Weinstein, O, Koldovský, S, Segal
openaire   +2 more sources

Lactogenesis in the rat. Metabolism of uridine diphosphate galactose by mammary gland [PDF]

Biochemical Journal, 1968
1. Lactose synthetase activity in the rat mammary gland increases during the last day of pregnancy from an essentially zero value. There is a parallel increase of tissue lactose and of glucose 6-phosphate dehydrogenase activity. 2. Mammary-gland homogenates prepared both before and after parturition hydrolyse the lactose precursors glucose 6-phosphate,
openaire   +2 more sources

Evolution of milk oligosaccharides and lactose: a hypothesis

Animal, 2012
Mammalian milk or colostrum contains up to 10% of carbohydrate, of which free lactose usually constitutes more than 80%. Lactose is synthesized within lactating mammary glands from uridine diphosphate galactose (UDP-Gal) and glucose by a ...
T. Urashima, K. Fukuda, M. Messer
doaj   +1 more source

Increased sugar content impairs pollen fertility and reduces seed-setting in high-photosynthetic-efficiency rice

Crop Journal
Crop yield depends on biomass, which is primarily associated with photosynthesis. We previously demonstrated that two photorespiratory bypasses, i.e., GOC (glycolate oxidase + oxalate oxidase + catalase) and GCGT (glycolate oxidase + catalase ...
Bodi Li, Anyao Huang, Limin Wang, Shuofan Wu, Zheng Xu, Xiaoyuan Chen, Zhisheng Zhang, Xinxiang Peng   +7 more
doaj   +1 more source

Review of Congenital Myasthenic Syndrome Caused by Pathogenic Variants in GFPT1

Muscle &Nerve, EarlyView.
ABSTRACT Glutamine:fructose‐6‐phosphate transaminase 1 (GFPT1) catalyzes the first and rate‐limiting step of the hexosamine biosynthetic pathway (HBP) to generate UDP‐GlcNAc. GFPT1 exon 9 is specifically spliced in in striated muscles, which makes a long isoform of GFPT1 (GFPT1‐L).
Kinji Ohno, Mohammad Nazim, Ruchen Zhang, Paniz Farshadyeganeh, Mikako Ito, Bisei Ohkawara   +5 more
wiley   +1 more source

Comparison of Three Sympatric Desert Lizards: Digestive Tract Structure, Digestive Enzyme Activities, Gut Microbiota, and Metabolites

Integrative Zoology, EarlyView.
We performed 16S rDNA sequencing and metabolite profiling for three sympatric lizard species—Teratoscincus roborowskii, Phrynocephalus axillaris, and Eremias roborowskii—and compared their goblet cell and enzyme activities in the digestive tract. Our study suggests that the dietary niche may promote divergence or convergence of microbiota across host ...
Yi Yang, Ziyi Wang, Ruichen Wu
wiley   +1 more source

Controlling plant diseases by blocking pathogen food supply chain

Phytopathology Research
While plant pathogens rely on their hosts for nutrients, the specific way they take these nutrients remains unclear. Recently, Wang et al. discovered that the bacterial type III effector AvrBs2 acts as a xanthosan synthetase, facilitating the ...
Huilin Lv, Jessie McCalister, Huan Chen, Zheng Qing Fu   +3 more
doaj   +1 more source

Metabolome Diversity Enhances Resistance of Intertidal Clams to Thermal Stress

Integrative Zoology, EarlyView.
Meretrix species are widely distributed intertidal bivalves in China with significant ecological and economic importance, which are sensitive to thermal stress. Our results showed that thermal environments of clam habitats shaped metabolome diversity, which can enhance the resistance of intertidal clams to thermal stress.
Zhi Hu, Xiang‐Tao Wei, Xiaonie Lin, Linxuan Ma, Tianzhe Zhang, Yunwei Dong   +5 more
wiley   +1 more source

Functional and transcriptomic analyses in Neurospora crassa reveal a crucial role for the N‐glycoprotein deglycosylation process in fungal homeostasis

The FEBS Journal, EarlyView.
In Neurospora crassa, a cytosolic GH18 endo‐β‐n‐acetylglucosaminidase (ENGase) functions as an active deglycosylating enzyme. Deletion of this severely alters tolerance to multiple stress conditions and causes extensive transcriptomic reprogramming, including upregulation of a GH20 exo‐β‐n‐acetylhexosaminidase under ER stress, indicating that N. crassa
Anastasios Samaras, Tanim Jabid Hossain, Magnus Karlsson, Georgios Tzelepis   +3 more
wiley   +1 more source

Integration of Spatiotemporal Multi‐Omics in Peach Fruit Unravels a Metabolic Niche and the Genetic Basis of Trichome‐Mediated Stress Adaptation

Advanced Science, Volume 13, Issue 41, 22 July 2026.
This study constructed the first spatiotemporal multi‐omics map of peach fruit and discovered a key candidate gene that synergistically regulates trichome development and drought tolerance through the jasmonic acid signaling pathway, providing insights into the coupling mechanism between development and stress resistance.
Zhixin Liu, Ke Cao, Liping Guan, Aizhi Qin, Yong Li, Zihao Zhao, Yinpeng Zhang, Yaping Zhou, Lirong Wang, Xuwu Sun   +9 more
wiley   +1 more source