2,231 results found
    1. Biochemistry and Chemical Biology

    Extensive site-directed mutagenesis reveals interconnected functional units in the alkaline phosphatase active site

    Fanny Sunden, Ariana Peck ... Daniel Herschlag
    Conventional studies have focused on enzymatic residues directly involved in catalysis; dissecting a potential interaction network within which these ‘catalytic residues’ are embedded provides insights fundamental to enzyme function, evolution, and engineering.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Spatial alanine metabolism determines local growth dynamics of Escherichia coli colonies

    Francisco Díaz-Pascual, Martin Lempp ... Knut Drescher
    An investigation of spatiotemporal metabolic differentiation during colony biofilm growth of E. coli revealed that alanine is cross-fed between spatially segregated subpopulations within the colony, to support cellular growth in an otherwise nutrient-deprived region of the colony.
    1. Neuroscience

    The β-alanine transporter BalaT is required for visual neurotransmission in Drosophila

    Yongchao Han, Liangyao Xiong ... Tao Wang
    BalaT-dependent β-alanine trafficking pathway in retinal pigment cells is critical for maintaining synaptic transmission of photoreceptor neurons in Drosophila.
    1. Developmental Biology
    2. Evolutionary Biology

    Quantitative system drift compensates for altered maternal inputs to the gap gene network of the scuttle fly Megaselia abdita

    Karl R Wotton, Eva Jiménez-Guri ... Johannes Jaeger
    Quantitative system-level analysis of a pattern-forming gene regulatory network in a non-model organism shows that dynamic changes in gene expression evolve through quantitative system drift.
    1. Microbiology and Infectious Disease

    Streptomyces exploration is triggered by fungal interactions and volatile signals

    Stephanie E Jones, Louis Ho ... Marie A Elliot
    Exploratory growth is a newly discovered mode of Streptomyces growth that it is stimulated by fungi, is pH responsive, and can be communicated to other – physically separated – streptomycetes through airborne compounds.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Ionic selectivity and thermal adaptations within the voltage-gated sodium channel family of alkaliphilic Bacillus

    Paul G DeCaen, Yuka Takahashi ... David E Clapham
    Not all members of the bacteria sodium channel family are sodium channels - those found in Bacillus are highly adaptable and can be converted into many selectivity types.
    1. Plant Biology

    The AUX1-AFB1-CNGC14 module establishes a longitudinal root surface pH profile

    Nelson BC Serre, Daša Wernerová ... Matyáš Fendrych
    Plant roots can rapidly change the acidity of their cell walls and the root-soil interface to efficiently navigate in the soil environment.
    1. Microbiology and Infectious Disease

    Bacteria: Exploring new horizons

    Vineetha M Zacharia, Matthew F Traxler
    Streptomyces bacteria employ a newly-discovered cell type, the "explorer" cell, to rapidly colonize new areas in the face of competition.
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    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    In vitro analysis of RQC activities provides insights into the mechanism and function of CAT tailing

    Beatriz A Osuna, Conor J Howard ... David E Weinberg
    Yeast extracts recapitulate a quality-control pathway dedicated to rescuing stalled ribosomes, providing unexpected insights into a noncanonical elongation reaction and the fate of incompletely synthesized proteins.
    1. Microbiology and Infectious Disease

    Plasticity of Escherichia coli cell wall metabolism promotes fitness and antibiotic resistance across environmental conditions

    Elizabeth A Mueller, Alexander JF Egan ... Petra Anne Levin
    Environmental specialization of bacterial cell wall synthases influences intrinsic resistance to cell wall active antibiotics.

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