Results 91 to 100 of about 98,650 (296)

Dependence of nucleotide physical properties on their placement in codons and determinative degree

open access: yes, 2007
Various physical properties such as dipole moment, heat of formation and energy of the most stable formation of nucleotides and bases were calculated by PM3 (modified neglect of diatomic overlap, parametric method number 3) and AM1 (Austin model 1 ...
Berezhnoy, A. Yu., Duplij, Steven
core   +1 more source

Depletion of the RNA‐Editing Enzyme ADAR1 Invigorates the Antitumor Immunity of NK Cells

open access: yesAdvanced Science, EarlyView.
ADAR1 is upregulated in NK cells from melanoma patients, impairing their function. Its loss enhances NK cell tumor infiltration and cytotoxicity in vitro and in vivo. Mechanistically, ADAR1 deficiency destabilizes CD38 mRNA to reduce its expression, thereby increasing NK cell mobility and killing, which nominates it as a therapeutic target for NK cell ...
Shuhan Chen   +11 more
wiley   +1 more source

Harnessing Methyltransferase‐Guided Targeting for Sequence‐Specific Proximity Labeling of DNA

open access: yesAngewandte Chemie, EarlyView.
A novel methyltransferase‐mediated approach leveraging rationally designed S‐adenosyl‐L‐methionine (SAM) analogues was developed to achieve sequence‐specific DNA labeling but in proximity to the natural transfer site, addressing key limitations of previously established methods, including ligand instability and methylation‐sensitive labeling.
Xiong Chen   +8 more
wiley   +2 more sources

Unusual DNA binding modes for metal anticancer complexes [PDF]

open access: yes, 2009
DNA is believed to be the primary target for many metal-based drugs. For example, platinum-based anticancer drugs can form specific lesions on DNA that induce apoptosis.
Pizarro, Ana M., Sadler, P. J.
core   +1 more source

Glutamine Deprivation Triggers Tribbles Homolog 3 Dependent G‐Quadruplex Resolution to Maintain DNA Repair and Tumor Survival

open access: yesAdvanced Science, EarlyView.
Glutamine deprivation triggers transient DNA damage yet activates adaptive repair in hepatocellular carcinoma cells. We identify TRIB3 as a stress‐induced nuclear scaffold that associates with DDX5 and G‐quadruplex DNA atBRCA1 andRAD51AP1 promoters. TRIB3 loss increases G4 accumulation, suppresses HR gene transcription, elevates γ‐H2A.X, and sensitizes
Qiang Ji   +10 more
wiley   +1 more source

Karakteristik Parsial Gen Sitokrom-C Oksidase Subunit-I Katak Pohon Suaka Marga Satwa Tanjung Peropa Moramo, Sulawesi Tenggara (CHARACTERISTICS OF PARTIAL CYTOCHROME C OXIDASE SUBUNIT I (COI) GENE OF TREE FROG (Polypedates celebensis) IN TANJUNG PEROPA WI

open access: yesJurnal Veteriner, 2017
Tree frog (Polypedates celebensis) is an endemic amphibi found in Southeast Sulawesi. Database ofthis species, in particular genetic databases is still very limited.
Suriana Suriana, Nasaruddin Nasaruddin
doaj  

Distinct conformational states enable transglutaminase 2 to promote cancer cell survival versus cell death

open access: yesCommunications Biology
Transglutaminase 2 (TG2) is a GTP-binding, protein-crosslinking enzyme that has been investigated as a therapeutic target for Celiac disease, neurological disorders, and aggressive cancers.
Cody Aplin   +7 more
doaj   +1 more source

Extreme Kinetic Stability and RNase Resistance of Human Telomerase RNA G‐Quadruplexes Overcome by DHX36 Helicase

open access: yesAdvanced Science, EarlyView.
The RNA G‐quadruplexes formed at the 5'‐end of the RNA component of human telomerase possess extreme slow unfolding rate, rendering them resistant to nuclease degradation. The helicase DHX36 overcame this kinetic barrier and significantly reduced the folded fraction.
Qun Luo   +5 more
wiley   +1 more source

The Role of Chemistry Across Disciplines From Humanities to Life Sciences in Understanding Complexity and Emergence

open access: yesAngewandte Chemie, EarlyView.
This study explores the origins of life by linking prebiotic chemistry, the emergence of information‐carrying molecules such as RNA and proteins, and philosophical questions about consciousness. The study emphasizes the role of molecular evolution in the Central Dogma and provides insights into the chemical origins of biology and the basis of life's ...
Harald Schwalbe   +5 more
wiley   +2 more sources

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