1,032 results found
    1. Computational and Systems Biology

    Essential metabolism for a minimal cell

    Marian Breuer et al.
    A near-complete flux balance analysis model of a minimal cell demonstrates the high essentiality of its metabolic genes, agrees well with experimental essentiality data and suggests some further gene removals.
    1. Developmental Biology

    Glucose inhibits cardiac muscle maturation through nucleotide biosynthesis

    Haruko Nakano et al.
    During cardiogenesis, the major role of glucose is not the catabolic extraction of energy but the anabolic biosynthesis of nucleotides.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    The NTP generating activity of pyruvate kinase II is critical for apicoplast maintenance in Plasmodium falciparum

    Russell P Swift et al.
    The pyruvate kinase contained in the apicoplast organelle of malaria parasites makes the nucleotide triphosphates required for several processes including transcription of the organellar genome.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures demonstrate human IMPDH2 filament assembly tunes allosteric regulation

    Matthew C Johnson, Justin M Kollman
    Assembly of the human enzyme inosine monophosphate dehydrogenase 2 into filaments promotes substrate-dependent resistance to feedback inhibition by downstream products, promoting increased flux during proliferative states.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Resource plasticity-driven carbon-nitrogen budgeting enables specialization and division of labor in a clonal community

    Sriram Varahan et al.
    Sufficient aspartate drives specialization within a microbial colony, when some cells use it to create a limited carbon-resource, while other cells consume this resource and use aspartate for nucleotide synthesis.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    A tRNA modification balances carbon and nitrogen metabolism by regulating phosphate homeostasis

    Ritu Gupta et al.
    The role of an amino acid-dependent tRNA modification as a nutrient sensor and regulator of metabolic homeostasis has been discovered.
    1. Cell Biology
    2. Computational and Systems Biology

    Self-establishing communities enable cooperative metabolite exchange in a eukaryote

    Kate Campbell et al.
    A eukaryotic cell model overcomes metabolic deficiencies within a complex, self-establishing community that enables the growth-relevant exchange of metabolic intermediates.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    Global donor and acceptor splicing site kinetics in human cells

    Leonhard Wachutka et al.
    Transient transcriptome sequencing and kinetic modeling suggest how the kinetics and yield of RNA splicing are encoded in the human genome.
    1. Cancer Biology

    PCK1 and DHODH drive colorectal cancer liver metastatic colonization and hypoxic growth by promoting nucleotide synthesis

    Norihiro Yamaguchi et al.
    The gluconeogenic enzyme PCK1 and pyrimidine nucleotide biosynthetic enzyme DHODH drive hypoxic pyrimidine nucleotide biosynthesis and liver metastatic colonization in colorectal cancer, which is therapeutically exploitable by DHODH pharmacologic inhibition.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Highly efficient 5' capping of mitochondrial RNA with NAD+ and NADH by yeast and human mitochondrial RNA polymerase

    Jeremy G Bird et al.
    Eukaryotic mitochondrial RNA polymerases cap RNA with NAD with much higher efficiencies than nuclear RNA polymerase II; as a consequence, mitochondrial RNAs have remarkably high levels of NAD capping.

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