15 results found
    1. Developmental Biology
    2. Neuroscience

    Regulation of nerve growth and patterning by cell surface protein disulphide isomerase

    Geoffrey MW Cook et al.
    The nerve growth-repellent activity that generates spinal nerve repeat-patterning in birds and mammals is identified at the molecular level, and a similar system is revealed in adult brain grey matter.
    1. Medicine

    Ankyrin-G mediates targeting of both Na+ and KATP channels to the rat cardiac intercalated disc

    Hua-Qian Yang et al.
    The functional interaction of Na+ and KATP channels at the intercalated disk of cardiomyocytes depends on Ankyrin G and is clinically relevant since KATP channel mutations affect Na+ channel expression.
    1. Developmental Biology
    2. Microbiology and Infectious Disease

    High fat diet induces microbiota-dependent silencing of enteroendocrine cells

    Lihua Ye et al.
    Enteroendocrine cells sense nutrients in the gut and regulate digestive physiology but are rendered insensitive following fat ingestion due to alteration of gut microbiota.
    1. Structural Biology and Molecular Biophysics

    Mechanism of pharmacochaperoning in a mammalian KATP channel revealed by cryo-EM

    Gregory M Martin et al.
    Diverse KATP channel inhibitors occupy a common binding pocket and stabilize an interaction between Kir6.2 and SUR1 to allosterically control gating and promote the assembly and trafficking of nascent channels.
    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.
    1. Structural Biology and Molecular Biophysics

    Activation mechanism of ATP-sensitive K+ channels explored with real-time nucleotide binding

    Michael Puljung et al.
    A combined FRET- and electrophysiology-based approach is used to study ATP/ADP ADP binding to the stimulatory nucleotide binding site of ATP-sensitive K+ channels and investigate their activation mechanism.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Molecular structure of human KATP in complex with ATP and ADP

    Kenneth Pak Kin Lee et al.
    MgADP binding to the high-affinity 'consensus' ATPase active site of SUR1 and remodeling of the L0-loop (lasso region) overrides tonic ATP inhibition of KATP channels.
    1. Neuroscience

    BAD and KATP channels regulate neuron excitability and epileptiform activity

    Juan Ramón Martínez-François et al.
    Altered activity of ATP-sensitive K+ channels underlies the metabolic seizure resistance produced by genetic manipulation of the BAD protein in mice.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Anti-diabetic drug binding site in a mammalian KATP channel revealed by Cryo-EM

    Gregory M Martin et al.
    A structure of a pancreatic ATP-sensitive potassium channel complex at 3.63Å resolution obtained by cryo-electron microscopy reveals how a commonly used anti-diabetic drug interacts with and inhibits the channel to stimulate insulin secretion.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the ATP-sensitive potassium channel illuminates mechanisms of assembly and gating

    Gregory M Martin et al.
    Single-particle cryo-electron microscopy reveals the first subnanometer structure of ATP-sensitive potassium (KATP) channels, which provides insight into the structural mechanisms of channel assembly and gating.

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