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nAChR

Nicotinic acetylcholine receptor (nAChR) agonists, antagonists and modulators act on ligand-gated cation channels. Each receptor is a pentamer of subunits arranged around a central pore that opens when acetylcholine binds. A refined structure of the Torpedo receptor at 4 Å resolution, published in 2005, resolved its ligand-binding, membrane and cytoplasmic regions. Muscle-type receptors mediate neuromuscular transmission, while neuronal subtypes such as α7 and α4β2 are studied in attention, memory and nicotine dependence. Agonists include PNU 282987, which is selective for α7, and the partial agonist varenicline. PNU-120596, described in 2005, is a positive allosteric modulator of α7 that enhances acetylcholine-evoked currents. Vecuronium bromide, a neuromuscular blocking agent, acts on the muscle-type receptor.

1 Item

  • Pipecuronium bromide
    Cat. No.
    A67589
    CAS No.
    52212-02-9

    Pipecuronium bromide

    Pipecuronium bromide functions as a long-acting nondepolarizing steroidal neuromuscular blocker, acting primarily as a competitive antagonist of the nicotinic acetylcholine receptor (nAChR). With a dissociation constant (Kd) of 3.06 μM, it effectively inhibits neuromuscular transmission, making it valuable for facilitating intubation and maintaining muscle relaxation during surgical procedures. Its applications also extend to research examining neuromuscular function and pharmacological studies involving skeletal muscle.

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    1 mg
    $25.00
    5 mg
    $55.00
    All 6 sizes

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