Results 71 to 80 of about 4,628 (262)

An Allele of Glutamate Formiminotransferase Triggers 5‐Methyl‐Tetrahydrofolate‐to‐MeFox Conversion and Facilitates Folate Biofortification in Maize

Advanced Science, Volume 12, Issue 42, November 13, 2025.
This work demonstrates the distinct roles of the glutamate formiminotransferase (GFT) enzyme in plants. The GFT triggers the conversion of 5‐methyl‐tetrahydrofolate to MeFox in plants, a process distinct from its role as a formiminotransferase in mammals.
Tong Lian, Wenzhu Guo, Yanjing Wang, Weiwei Wen, Weixuan Wang, Ling Jiang, Qiuju Liang, Ji'an Liu, Haijun Liu, Yuan Xue, Lixu Pan, Qiaoquan Liu, Ping Yin, Delin Zhang, Jianbing Yan, Chunyi Zhang   +15 more
wiley   +1 more source

Crystal structure of ricin toxin A chain complexed with a highly potent pterin-based small-molecular inhibitor [PDF]

, 2023
Masaru Goto, Natsumi Sakamoto, Shoko Higashi, Rena Kawata, Kazuki Nagatsu, Ryota Saito   +5 more
openalex   +1 more source

Usefulness of analysis of cerebrospinal fluid for the diagnosis of neurotransmitters and pterin defects and glucose and folate transport deficiencies across blood brain barrier [PDF]

, 2006
Med Clin (Barc). 2006 Jun 17;127(3):81-5. [Usefulness of analysis of cerebrospinal fluid for the diagnosis of neurotransmitters and pterin defects and glucose and folate transport deficiencies across blood brain barrier] [Article in Spanish ...
ARTUCH, R., BARBOT, C., CAMPISTOL, J., CARILHO, I., CORMAND, B., FERNÁNDEZ ALVAREZ, E., GARCÍA CAZORLA, A., GARCÍA SILVA, M., LÓPEZ LASO, E., MOLLER, L., ORMAZABAL, A., PINEDA, M., PÉREZ DUEÑAS, B., RIBASES, M., RUIZ, A.   +14 more
core  

Spiders have rich pigmentary and structural colour palettes [PDF]

, 2017
Elucidating the mechanisms of colour production in organisms is important for understanding how selection acts upon a variety of behaviours. Spiders provide many spectacular examples of colours used in courtship, predation, defence and thermoregulation ...
Blackledge, Todd A, Hsiung, Bor-Kai, Justyn, Nicholas M, Shawkey, Matthew   +3 more
core   +2 more sources

A concise treatment of pterins: some recent synthetic and methodology aspects and their applications in molecular sensors

Pteridines, 2018
A concise account of pterins in chemistry and biology and their applications in molecular sensors including their optical spectroscopic properties are described.
Goswami Shyamaprosad, Das Manas Kumar, Sain Dibyendu, Goswami Bhaswati   +3 more
doaj   +1 more source

Bacterial Active Community Cycling in Response to Solar Radiation and Their Influence on Nutrient Changes in a High-Altitude Wetland [PDF]

, 2016
Indexación: Web of Science; Scopus.Microbial communities inhabiting high-altitude spring ecosystems are subjected to extreme changes in solar irradiance and temperature throughout the diel cycle.
Dorador, C, Eissler, Y, Harrod, C, Hengst, M, Hernandez, K, Molina, V, Perez, V   +6 more
core   +7 more sources

Identification of Novel Potential Inhibitors of Pteridine Reductase 1 in Trypanosoma brucei via Computational Structure-Based Approaches and in Vitro Inhibition Assays

Molecules, 2019
Pteridine reductase 1 (PTR1) is a trypanosomatid multifunctional enzyme that provides a mechanism for escape of dihydrofolate reductase (DHFR) inhibition. This is because PTR1 can reduce pterins and folates.
Magambo Phillip Kimuda, Dustin Laming, Heinrich C. Hoppe, Özlem Tastan Bishop   +3 more
doaj   +1 more source

Metabolic Origin, Role and Fate of the Denaturant Guanidine

Microbial Biotechnology, Volume 18, Issue 11, November 2025.
The origin of metabolic guanidine is largely a mystery. We suggest it is created when guanine‐containing nucleotides are oxidised by molecular oxygen instead of being broken down into urea as purines normally would. Guanidine may act as a signal to help cells control the level of reactive oxygen species.
Antoine Danchin, Victor de Lorenzo, Pablo Iván Nikel, Conghui You   +3 more
wiley   +1 more source

Blocked dihydropteridines as nitric oxide synthase activators [PDF]

, 2010
It has been shown that 6-acetyl-7,7-dimethyl-5,6,7,8-tetrahydropteridin-4(3H)-one can act as a competent cofactor for the production of nitric oxide by neuronal nitric oxide synthase (nNOS).
Daff, Simon, Gazur, Ben, Gibson, C.L., McInnes, Craig R., Morthala, Raghavendar R., Suckling, C.J.   +5 more
core  

Replicated Differential Expression Analysis in a Green‐Brown Polymorphic Grasshopper Reveals Role of Beta‐Carotene‐Binding Protein in Body Coloration

Molecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Orthoptera provide a well‐documented case of transspecies colour polymorphism, with green and brown morphs coexisting in many species. This colour polymorphism is likely under long‐term balancing selection, but the genetic and molecular mechanisms underlying the variation remain poorly understood.
Chongyi Jiang, Mahendra Varma, Abhijeet Shah, Octavio M. Palacios‐Gimenez, Holger Schielzeth   +4 more
wiley   +1 more source