2,690 results found
    1. Cell Biology
    2. Neuroscience

    C9orf72 arginine-rich dipeptide repeat proteins disrupt karyopherin-mediated nuclear import

    Lindsey R Hayes et al.
    Poly-PR and poly-GR interact with importin β, disrupt importin-cargo loading, and inhibit nuclear import in permeabilized cells in a manner that can be rescued by RNA.
    1. Cell Biology
    2. Neuroscience

    Involvement of the Acyl-CoA binding domain containing 7 in the control of food intake and energy expenditure in mice

    Damien Lanfray et al.
    The Acyl-CoA binding domain-containing 7 (Acbd7) gene is expressed in the hypothalamus, encodes a peptide that suppresses appetite, increases metabolic rate and interacts with the leptin-melanocortin system.
    1. Biochemistry and Chemical Biology

    Kinetics of initiating polypeptide elongation in an IRES-dependent system

    Haibo Zhang et al.
    The retarding effect of a ribosome-bound internal ribosome entry site on eukaryotic protein synthesis is largely overcome following translocation of tripeptidyl-tRNA.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A composite double-/single-stranded RNA-binding region in protein Prp3 supports tri-snRNP stability and splicing

    Sunbin Liu et al.
    Structural and functional analyses show how the spliceosomal Prp3 protein concomitantly binds double- and single- stranded regions in U4/U6 di-snRNAs and serves to stabilize the U4/U6•U5 tri-snRNP for splicing.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of diverse membrane target recognitions by ankyrins

    Chao Wang et al.
    The 24 ankyrin repeats of ankyrin proteins form an extended solenoid that provides an extremely conserved groove for binding to numerous targets via combinatorial usage of multiple weak interaction sites.
    1. Neuroscience

    APP and APLP2 interact with the synaptic release machinery and facilitate transmitter release at hippocampal synapses

    Tomas Fanutza et al.
    A naturally occurring intracellular peptide, derived by processing the Alzheimer's protein APP, reduces synaptic transmission by acting as a dominant negative of APP.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Drosophila seminal sex peptide associates with rival as well as own sperm, providing SP function in polyandrous females

    Snigdha Misra, Mariana F Wolfner
    A seminal protein from a mating-male can bind sperm previously stored in his mate, providing direct benefits to the sperm from the prior male that mated with her.
    1. Plant Biology

    The CLAVATA receptor FASCIATED EAR2 responds to distinct CLE peptides by signaling through two downstream effectors

    Byoung Il Je et al.
    The maize CLAVATA receptor, FEA2, functions in the perception of two different ligands, and remarkably that signaling from these different inputs is differentiated by the receptor interacting with two different downstream components.
    1. Neuroscience

    High-frequency stimulation-induced peptide release synchronizes arcuate kisspeptin neurons and excites GnRH neurons

    Jian Qiu et al.
    Kisspeptin neurons in the hypothalamus release peptide and amino acid neurotransmitters that work together to coordinate the activity of gonadotropin-releasing hormone neurons and subsequent release of reproductive hormones.
    1. Cell Biology

    Fusion pore regulation by cAMP/Epac2 controls cargo release during insulin exocytosis

    Alenka Guček et al.
    Live cell imaging shows that the cAMP-sensor Epac2, a target of major antidiabetic drugs, is central to fusion pore control during insulin granule exocytosis.

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