Results 51 to 60 of about 159,112 (164)

Computational Approaches for Protein–DNA/RNA Complex Modeling for Cryo‐EM Maps

Current Protocols, Volume 6, Issue 8, August 2026.
Abstract Cryogenic electron microscopy (cryo‐EM) has become a key method in structural biology for determining macromolecular structures. Numerous computational tools have been developed to build atomic models from cryo‐EM density maps. However, relatively few tools are available for modeling protein–nucleic acid complexes. Here, we describe how to use
Anika Jain, Kefan Cao, Daisuke Kihara
wiley   +1 more source

Changes in enzymic activities of nucleoside diphosphate sugar interconversions during differentiation of cambium to xylem in sycamore and poplar [PDF]

Biochemical Journal, 1977
During the transition from primary wall formation to secondary thickening there is a marked shift in the synthesis of pectin, hemicellulose and cellulose. The activities of the enzymes [UDP-D-galactose 4-epimerase (EC 5.1.3.2)8 UDP-l-arabinose 4-epimerase (EC 5.1.3.5), UDP-D-glucose dehydrogenase (EC 1.1.1.22) and UDP-D--glucuronate decarboxylase (EC 4.
G, Dalessandro, D H, Northcote
openaire   +2 more sources

Chemoenzymatic Preparation of Nucleoside Triphosphates [PDF]

, 2004
The design and synthesis of alternative nucleoside triphosphate substrates for DNA and RNA polymerases holds continued promise to create biochemical probes and precursors for synthesis of nucleic acid mimics.
Bergstrom, Donald E., Davisson, V., Weidong Wu, Donald E. Bergstrom, V. Jo Davisson, Wu, Weidong   +5 more
core   +1 more source

Nutrient disturbance in a shallow aquaculture pond impacts Microcystis gene expression but does not impact bacterial community function during bloom conditions

Journal of Phycology, Volume 62, Issue 4, Page 1297-1310, August 2026.
Abstract Cyanobacterial harmful algal blooms (cHABs) are worldwide issues. Reduced nitrogen forms (ammonium and urea) have recently been measured in freshwater systems at concentrations not previously recorded. These reduced nitrogen forms have been shown to favor the proliferation of harmful cyanobacteria.
Matthew F. Gladfelter, Hunter R. Baylous, Alan E. Wilson, Morgan M. Steffen   +3 more
wiley   +1 more source

DNA Methylation Shapes Seed‐Borne Microbiome and Proteome Responses During Early Maize‐Beneficial Bacteria Interactions

Plant, Cell &Environment, Volume 49, Issue 8, Page 5477-5496, August 2026.
ABSTRACT Microorganism and plant interactions are crucial for development and environmental adaptation. Plant growth promoting bacteria enhance agricultural productivity in a sustainable manner, while epigenetic modifications such as DNA methylation regulate gene expression and adaptive responses.
Pedro Igor Zocateli, Geovanna Vitória Olímpio, Felipe Astolpho de Almeida, Letícia Oliveira da Rocha, Diego Vinicius de Sena Martins, Sara Sangi, Fábio Lopes Olivares, Elyabe Monteiro de Matos, Juliana Siqueira, Lyderson Facio Viccini, Roberta Pena da Paschoa, Vanildo Silveira, Clícia Grativol   +12 more
wiley   +1 more source

Extracellular Vesicles From Human Fallopian Tubes Enhance IVF Embryo Development and Contain Functional Proteins Including YWHAZ

Journal of Extracellular Vesicles, Volume 15, Issue 7, July 2026.
ABSTRACT Extracellular vesicles (EVs) in the mammalian oviduct constitute a key maternal regulatory system that maintains redox balance during early embryogenesis, yet their molecular cargo and functional relevance in human embryos remain poorly defined.
Yuehan Li, Wenjing Xiong, Limin Gao, Mingwei Lv, Fei Li, Rui Long, Chang Liu, Jianbo Wei, Meng Wang, Chenlu Zhang, Qiuyu Yu, Na Guo, Lei Jin, Cong Sui   +13 more
wiley   +1 more source

Secreted Variant of Nucleoside Diphosphate Kinase from the Intracellular Parasitic Nematode Trichinella spiralis

, 2001
The molecular components involved in the survival of the parasitic nematode Trichinella spiralis in an intracellular environment are poorly characterized.
Murray E. Selkirk, Pilar Najarro, Kleoniki Gounaris, Simon Thomas   +3 more
core   +1 more source

Sources of total, non-milk extrinsic, and intrinsic and milk sugars in the diets of older adults living in sheltered accommodation [PDF]

, 2008
The WHO recommends limiting non-milk extrinsic sugars (NMES) consumption to ≤ 10 % energy to reduce the risk of unhealthy weight gain and dental caries, and to restrict frequency of intake to ≤ 4 times/d to reduce risk of dental caries.
Adamson, AshleyJ., Seal, Chris J., Mulvaney, Charlotte E., Moynihan, Paula J., Adamson, Ashley J., Mathers, John C., Bradbury, Jane; id_orcid, Bradbury, Jane   +7 more
core   +1 more source

Vitamin‐Responsive Disorders: From Molecular Basis to Clinical Presentation and Therapy

Journal of Inherited Metabolic Disease, Volume 49, Issue 4, July 2026.
ABSTRACT Vitamin‐dependent cofactors are essential for numerous metabolic reactions, and defects affecting their uptake, conversion, utilisation, or regeneration constitute a heterogeneous group of inherited metabolic disorders (IMDs). Although dietary vitamin intake is sufficient to sustain coenzyme synthesis in healthy individuals, it is insufficient
Cécile Acquaviva, Yann Nadjar, Manuel Schiff, Christine Vianey‐Saban, Alain Fouilhoux, Jean‐François Benoist   +5 more
wiley   +1 more source

Efficient Enzymatic Synthesis of Guanosine 5′-Diphosphate-Sugars and Derivatives [PDF]

, 2013
An N-acetylhexosamine 1-kinase from Bifidobacterium infantis (NahK_15697), a guanosine 5'-diphosphate (GDP)-mannose pyrophosphorylase from Pyrococcus furiosus (PFManC), and an Escherichia coli inorganic pyrophosphatase (EcPpA) were used efficiently for a
Zhao, Wei, Chen, Xi, Wan, Yue, Liu, Yonghui, Wang, Peng George, Li, Yanhong, Li, Lei   +6 more
core   +1 more source