Results 61 to 70 of about 6,590 (170)

A common structural motif in thiamin pyrophosphate‐binding enzymes

FEBS Letters, 1989
The amino acid sequences of a wide range of enzymes that utilize thiamin pyrophosphate (TPP) as cofactor have been compared. A common sequence motif approximately 30 residues in length was detected, beginning with the highly conserved sequence ‐GDG‐ and concluding with the highly conserved sequence ‐NN‐. Secondary structure predictions suggest that the
Hawkins, Christopher F., Borges, Adolfo, Perham, Richard N.   +2 more
openaire   +2 more sources

Evolution‐Inspired Engineering of Diterpene Biosynthesis via Chloroplast Genome Modification

Plant Biotechnology Journal, Volume 24, Issue 10, Page 5510-5525, October 2026.
ABSTRACT Terpenes constitute the largest and most structurally diverse class of plant secondary metabolites, with critical roles in plant‐environment interactions and broad industrial applications. Although nuclear genome engineering of terpene pathways has been extensively explored, chloroplast genome engineering remains largely undeveloped, with most
Alessandro Occhialini, Xinlu Chen, Samantha A. Miller, Mohammad Majdi, Ivette A. Fuentes Quispe, Gabriella King, Feng Chen   +6 more
wiley   +1 more source

The Gut Commensal Butyricimonas Virosa Modulates Gut Microbiota‐Dependent Thiamine Metabolism and Attenuates Mouse Steatotic Liver Disease

Advanced Science
Metabolic dysfunction‐associated steatotic liver disease (MASLD) is a common chronic liver disease. This study investigates the anti‐MASLD effects of dietary prebiotic stachyose (STA) on disease progression identifying Butyricimonas virosa as a key ...
Ningning He, Haoyu Wang, Zizhen Yang, Hui Li, Bei Liu, Kaiwei Chen, Zhinan Wu, Xinnan Zhao, Hewei Liang, Mengmeng Wang, Xiaofang Li, Yiyi Zhong, Haifeng Zhang, Liang Xiao, Karsten Kristiansen, Jixing Peng, Yuanqiang Zou, Shangyong Li   +17 more
doaj   +1 more source

Novel TPP-riboswitch activators bypass metabolic enzyme dependency

Frontiers in Chemistry, 2014
Riboswitches are conserved regions within mRNA molecules that bind specific metabolites and regulate gene expression. TPP-riboswitches, which respond to thiamine pyrophosphate (TPP), are involved in the regulation of thiamine metabolism in numerous ...
Günter eMayer, Christina eLünse, Colin eSuckling, Fraser eScott   +3 more
doaj   +1 more source

Safety of benfotiamine as a Novel food pursuant to Regulation (EU) 2015/2283 and the bioavailability of benfotiamine as a source of thiamin in the context of Directive 2002/46/EC on food supplements

EFSA Journal, Volume 24, Issue 10, October 2026.
Abstract Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on the safety of benfotiamine as a novel food (NF) pursuant to Regulation (EU) 2015/2283 and on the bioavailability of benfotiamine as a source of thiamin in the context of Directive 2002/46/EC ...
EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA), Dominique Turck, Torsten Bohn, Montaña Cámara, Jacqueline Castenmiller, Stefaan De Henauw, Ángeles Jos, Alexandre Maciuk, Inge Mangelsdorf, Breige McNulty, Androniki Naska, Kristina Pentieva, Alfonso Siani, Frank Thies, Francesco Cubadda, Thomas Frenzel, Ursula Gundert‐Remy, Francesca Marcon, Harry J. McArdle, Monika Neuhäuser‐Berthold, Miguel Prieto Maradona, Alexandros Siskos, Matthew Wright, Gabriela Precup, Silvia Valtueña Martinez, Hanna Schmierer, Karen Ildico Hirsch‐Ernst   +27 more
wiley   +1 more source

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

FEBS Letters, Volume 600, Issue 17, Page 2579-2614, September 2026.
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

Untargeted metabolomics confirms and extends the understanding of the impact of aminoimidazole carboxamide ribotide (AICAR) in the metabolic network of Salmonella enterica

Microbial Cell, 2017
In Salmonella enterica, aminoimidazole carboxamide ribotide (AICAR) is a purine biosynthetic intermediate and a substrate of the AICAR transformylase/IMP cyclohydrolase (PurH) enzyme.
Jannell V. Bazurto, Stephen P. Dearth, Eric D. Tague, Shawn R. Campagna, Diana M. Downs   +4 more
doaj   +1 more source

LRRC4 Orchestrates AP2A1‐Containing Clathrin‐Coated Vesicles to Disrupt Mitochondrial Cristae and Restrict Glioblastoma Progression

Advanced Science, Volume 13, Issue 54, 28 September 2026.
LRRC4 suppresses GBM by regulating AP2A1‐containing Golgi‐derived clathrin‐coated vesicles. Low LRRC4 allows cytoplasmic AP2A1 to maintain mitochondrial fission‐fusion, MICOS integrity, and OXPHOS, promoting proliferation and invasion. High LRRC4 redirects AP2A1‐containing Golgi‐derived clathrin‐coated vesicles to mitochondria, disrupts MICOS, enhances
Yang Li, Cheng Huang, Liangqi Jiang, Zhen Li, Qing Liu, Minghua Wu   +5 more
wiley   +1 more source

Machine Learning to Enhance Biophysical Models for Riboswitch Discovery

WIREs RNA, Volume 17, Issue 5, September/October 2026.
An encoder–decoder transformer–based machine learning model is used to enhance inverse RNA folding. It operates as a preprocessing step for a solver that employs a biophysical model to predict RNA secondary structure from a given sequence. ABSTRACT Riboswitches are RNA‐based genetic control elements that provide a unique mechanism of gene regulation ...
Rami Zakh, Alexander Churkin, Ahmed Elbanna, Sumit Mukherjee, Danny Barash   +4 more
wiley   +1 more source

Genetic Tools in the Nakaseomyces clade for Evolutionary Comparisons of Signal Transduction Pathways

Yeast, Volume 43, Issue 5, Page 202-213, September 2026.
ABSTRACT The genus Nakaseomyces provides four species that are closely related but have different characteristics. For example, N. glabratus (formerly known as Candida glabrata) is a common human pathogen, whereas N. bracarensis and N. nivariensis have been isolated in clinical settings but are not common human pathogens. N.
Maria Abraham, Christine L. Iosue, Dennis D. Wykoff   +2 more
wiley   +1 more source