Results 11 to 20 of about 1,335 (97)

Carbohydrate utilization in Streptococcus thermophilus: characterization of the genes for aldose 1-epimerase (mutarotase) and UDPglucose 4-epimerase [PDF]

Journal of Bacteriology, 1990
The complete nucleotide sequences of the genes encoding aldose 1-epimerase (mutarotase) (galM) and UDPglucose 4-epimerase (galE) and flanking regions of Streptococcus thermophilus have been determined. Both genes are located immediately upstream of the S. thermophilus lac operon.
Poolman, Bert, Royer, Theresa J., Mainzer, Stanley E., Schmidt, Brian F.   +3 more
openaire   +3 more sources

RmlC, a C3′ and C5′ Carbohydrate Epimerase, Appears to Operate via an Intermediate with an Unusual Twist Boat Conformation [PDF]

Journal of Molecular Biology, 2007
The striking feature of carbohydrates is their constitutional, conformational and configurational diversity. Biology has harnessed this diversity and manipulates carbohydrate residues in a variety of ways, one of which is epimerization. RmlC catalyzes the epimerization of the C3' and C5' positions of dTDP-6-deoxy-D-xylo-4-hexulose, forming dTDP-6-deoxy-
Dong, Changjiang, Major, Louise L, Srikannathasan, Velupillai, Errey, James C, Giraud, Marie-France, Lam, Joseph S, Graninger, Michael, Messner, Paul, McNeil, Michael R, Field, Robert A, Whitfield, Chris, Naismith, James H   +11 more
openaire   +5 more sources

Atypical Condensation Domains Guide Discovery and Illuminate Biosynthesis of Myxoglucamides Featuring Vinyl‐Substituted, α‐Oxidized γ‐Amino Acids

Angewandte Chemie, EarlyView.
Genome mining of atypical condensation (C) domains leads to the discovery of myxoglucamides, glycolipopeptides featuring an unprecedented vinyl‐substituted, α‐oxidized γ‐amino acid. Biosynthetic studies reveal a discrete C‐domain‐like O‐acyltransferase, a β‐hydroxylation‐dependent chain‐extension checkpoint, and an unusual pathway for γ‐amino acid ...
Tingting Wang, Alexander Popoff, Maja Hunter, Guangzhi Dai, Ronald Garcia, Huixin Xu, Haowen Zhao, Asfandyar Sikandar, Liujie Huo, Rolf Müller, Chengzhang Fu   +10 more
wiley   +2 more sources

Functional Characterization of the Rice UDP-glucose 4-epimerase 1, OsUGE1: A Potential Role in Cell Wall Carbohydrate Partitioning during Limiting Nitrogen Conditions

PLoS ONE, 2014
Plants grown under inadequate mineralized nitrogen (N) levels undergo N and carbon (C) metabolic re-programming which leads to significant changes in both soluble and insoluble carbohydrate profiles. However, relatively little information is available on the genetic factors controlling carbohydrate partitioning during adaptation to N-limitation ...
David R Guevara, Ashraf El-Kereamy, Mahmoud W Yaish, Yong Mei-Bi, Steven J Rothstein   +4 more
openaire   +4 more sources

Metabolic mechanism of mannan in a ruminal bacterium, Ruminococcus albus, involving two mannoside phosphorylases and cellobiose 2-epimerase: discovery of a new carbohydrate phosphorylase, β-1,4-mannooligosaccharide phosphorylase.

The Journal of biological chemistry, 2013
Ruminococcus albus is a typical ruminal bacterium digesting cellulose and hemicellulose. Cellobiose 2-epimerase (CE; EC 5.1.3.11), which converts cellobiose to 4-O-β-D-glucosyl-D-mannose, is a particularly unique enzyme in R. albus, but its physiological function is unclear.
Kawahara, Ryosuke, Saburi, Wataru, Odaka, Rei, Taguchi, Hidenori, Ito, Shigeaki, Mori, Haruhide, Matsui, Hirokazu   +6 more
openaire   +3 more sources

Design and Engineering of an Artificial Bifunctional N‐Deacetylase/N‐Sulfotransferase for the Biosynthesis of N‐Sulfated Heparosan

Advanced Science, EarlyView.
An artificial bifunctional N‐deacetylase/N‐sulfotransferase was engineered in Escherichia coli by combining screened N‐deacetylases with an NST domain. The integrated engineering strategy improved enzyme performance. The optimized enzyme efficiently converted heparosan into N‐sulfated heparosan, addressing a key bottleneck in microbial heparin ...
Xintong Xi, Ruirui Xu, Daoan Wang, Guobin Yin, Xinjing Wang, Haiqin Chen, Guocheng Du, Jian Chen, Zhen Kang   +8 more
wiley   +1 more source

Species Dynamics and Gene Expression in Algal Polycultures Under Mixotrophic Cultivation in Outdoor Pilot‐Scale Nordic Conditions

Biotechnology and Bioengineering, EarlyView.
These results demonstrate that mixotrophic conditions drive both microbial community shifts and metabolic reprogramming, underscoring the importance of cultivation strategy and polyculture selection for targeted applications such as nutrient recovery and bioproduct generation.
Quyen Nham, Hanna Farnelid, Catherine Legrand, Elin Lindehoff   +3 more
wiley   +1 more source

Combining phenotypic, physiological, and multi‐omics studies to provide new insights on the role of 2,4‐epibrassinolide in regulation of seed shattering in Elymus sibiricus L.

Grassland Research, EarlyView.
Abstract Background Seed shattering limits the production of Elymus sibiricus L., and application of exogenous brassinosteroid significantly alleviates plant organ abscission. Methods To explore the potential regulatory network of brassinosteroid on seed shattering, the abscission zone of E. sibiricus cv. Lanyu No.
Huanhuan Lu, Yiyang Wan, Liuban Tang, Yongsen Qiu, Yancui Zhao, Yuying Zheng, Wengang Xie   +6 more
wiley   +1 more source

Glucose-6-Phosphate 1-Epimerase Responds to Phosphate Starvation by Regulating Carbohydrate Homeostasis in Rice and Arabidopsis

Plants
Plants adapt to phosphate starvation by remodeling root architecture and reallocating carbohydrates. Glucose-6-phosphate 1-epimerase (G6PE), a key enzyme in carbon and energy metabolism, is hypothesized to contribute to phosphate starvation responses. Here, we investigated the role of G6PE in rice and Arabidopsis through phenotypic, physiological, and ...
Hongkai Zhang, Shuhao Zhang, Youming Guo, Luyao You, Hongqian Ma, Yubao Cao, Haiying Zhang, Bowen Luo, Xiao Zhang, Dan Liu, Ling Wu, Duojiang Gao, Shiqiang Gao, Baolin Han, Guohua Zhang, Jijin Li, Zihao Feng, Dong Li, Yi Ma, Haibo Lan, Lijuan Gong, Shibin Gao   +21 more
openaire   +3 more sources

Advantages of low‐glycaemic‐index carbohydrates in regulating glycaemic response of energy bar: A review

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Energy bars are widely consumed functional foods among athletes and physically active consumers who require convenient sources of sustained energy. Their carbohydrate composition, particularly the type and ratio of digestible sugars such as glucose, fructose and sucrose, strongly influences glycaemic index (GI), postprandial blood glucose ...
Raju Sasikumar, Ayush Gupta, Selva Kumar T, Kaviarasu Ganesan, Sheena Haorongbam, Ravikumar Rajarathinam, Sandeep Janghu, Sandeep Kumar Panda, Amit K. Jaiswal   +8 more
wiley   +1 more source