Results 21 to 30 of about 158,534 (314)
The molecular genetics of RASopathies: An update on novel disease genes and new disorders
American Journal of Medical Genetics Part C: Seminars in Medical Genetics, Volume 190, Issue 4, Page 425-439, December 2022., 2022 Abstract Enhanced signaling through RAS and the mitogen‐associated protein kinase (MAPK) cascade underlies the RASopathies, a family of clinically related disorders affecting development and growth. In RASopathies, increased RAS‐MAPK signaling can result from the upregulated activity of various RAS GTPases, enhanced function of proteins positively ...
Marco Tartaglia +2 more
wiley +1 more source
Frontiers in Pharmacology, 2018 Mounting evidence suggests that the guanine-based purines stand out as key player in cell metabolism and in several models of neurodegenerative disorders, such as Parkinson’s and Alzheimer’s diseases.
Mariachiara Zuccarini +18 more
doaj +1 more source
Chemosensors, 2023 In this proof-of-concept study, gold nanoparticles (AuNPs) were immobilized on glassy carbon electrode (GCE) surfaces using a surface-anchored diazonium salt of 4-aminothiophenol (GCE-Ph-S-AuNPs).
Niloufar Soltani +3 more
doaj +1 more source
Animal Models and Experimental Medicine, Volume 5, Issue 6, Page 542-549, December 2022., 2022 Schematic diagram showing RHAU can bind and unwind the G4 “knots” to modulate embryonic development and post‐natal organ function. Deficiency of RHAU gives rise to embryonic lethality, impaired organogenesis and organ dysfunction. RHAU modulates Nkx2‐5 mRNA and Yap1 mRNA at the post‐transcriptional level and facilitates the transcription of c‐Kit and ...
Chensi Yang +5 more
wiley +1 more source
Eco-Friendly Synthesis of Nitrogen-Doped Mesoporous Carbon for Supercapacitor Application
C, 2018 A sustainable and simple synthesis procedure involving the co-assembly of green phenolic resin and amphiphilic polymer template in water/ethanol mixture at room temperature to synthesize nitrogen doped mesoporous carbon is reported herein.
Georges Moussa +4 more
doaj +1 more source
Infrared Spectral Signatures of Nucleobases in Interstellar Ices I: Purines
Life, 2023 The purine nucleobases adenine and guanine are complex organic molecules that are essential for life. Despite their ubiquitous presence on Earth, purines have yet to be detected in observations of astronomical environments.
Caroline Antunes Rosa +11 more
doaj +1 more source
Open Chemistry, 2020 In this study, an electrochemical biosensor based on guanine and chitosan immobilized MoS2 nanosheet modified glassy carbon electrode (guanine/CS/MoS2/GCE) was developed and employed for antioxidant screening and antioxidant capacity evaluation.
Tang Ping +5 more
doaj +1 more source
Substitutional Sodium Doping on Tungsten Ditelluride: A First-principles Study
Bibechana, 2022 Methylation at O6 atom of guanine is a type of DNA damage which can cause a cancer. This damage at O6 atom of guanine in a DNA can be transferred to SG atom of cysteine in O6-alkylguanine-DNA alkyltransferase (AGT).
Bibek Subedi, Narayan Adhikari
doaj +3 more sources
Microbiology Spectrum, 2022 Nucleoside transport is essential for maintaining intracellular nucleoside and nucleobase homeostasis for living cells. Here, we identified an uncharacterized GntR/HutC family transcriptional regulator, NagR2, renamed NupR (nucleoside permease regulator),
Jiaxin Qin +10 more
doaj +1 more source
Ab-initio study of model guanine assemblies: The role of pi-pi coupling and band transport [PDF]
Physical Review B 65, 045104 (2002), 2001 Several assemblies of guanine molecules are investigated by means of first-principle calculations. Such structures include stacked and hydrogen-bonded dimers, as well as vertical columns and planar ribbons, respectively, obtained by periodically replicating the dimers.
arxiv +1 more source