Cells generate purine nucleotides through de novo purine biosynthesis (DNPB) and purine salvage. Purine salvage represses DNPB to prevent excessive purine nucleotide synthesis through mechanisms that ...

The persistence of post-replicative ssDNA gaps following PRIMPOL-mediated replication repriming is linked to chemosensitivity, and in all models reported to date the nuclease MRE11 has been implicated...

As biomedical research prioritizes human models and translational promise, classic model organisms are increasingly dismissed. Here we argue that they have a lasting value, both in enabling discovery and in cultivating scientific thinking, by training researchers in systems reasoning, integrative thinking and independent inquiry.

The 1913 study ‘Die Kinetik der Invertinwirkung’, by Michaelis and Menten, marked a pivotal advancement in enzymology by illustrating the application of mechanistic models and quantitative kinetics to biocatalysis. The foundational framework described back then continues to have a strong impact on enzymology, with profound influences that range from undergraduate education to structure–function studies and the format and content of contemporary kinetic databases.

Imbalanced nucleotide metabolism leads to age- and mtDNA-dependent inflammatory responses and senescence-associated secretory phenotype in senescence.

DNA double-strand breaks and unresolved DNA replication intermediates are particularly dangerous during mitosis. Paradoxically, cells inactivate canonical DNA repair mechanisms during chromosome segre...

Glioblastoma, an aggressive brain cancer, depends on the amino acid serine as a fuel source. A serine-deficient diet has been shown to slow tumour growth in mice.

DNA2 suppresses recombination-restarted replication and checkpoint activation at stalled forks, and its loss triggers recombination-dependent synthesis, checkpoint signalling and cell-cycle exit, high...

Nature Metabolism - John et al. show that upon classical activation, macrophages undergo nitric oxide-driven reprogramming of nucleotide metabolism, which affects immune functions and responses.

Mitochondria are multifaceted organelles that support numerous cellular metabolic pathways, including the biosynthesis of nucleotides required for cell growth and proliferation. Owing to an ancient en...

Dual cyclin A/B RxL inhibitors selectively kill small cell lung cancer cells and other cancer cells with high E2F activity.

In mammals, the enzyme TGDS produces UDP-4-keto-6-deoxyglucose, which binds to the catalytic pocket of UDP-xylose synthase, thereby regenerating the essential NAD+ cofactor of UDP-xylose synthase...

In a recent study published in Nature, Liu, Wang, et al. investigate the mechanisms underlying cytarabine-induced neurotoxicity and provide a mechanistic explanation for the differing neurotoxicity profiles of other nucleoside analogues, such as gemcitabine.

Metabolic reprogramming is a well-established hallmark of macrophage activation, coordinating bioenergetic and biosynthetic pathways to support immune effector functions. A new study now reveals a pre...