Mass changes of inositol(1,4,5)trisphosphate in trachealis muscle following agonist stimulation.

作者: Edwin R. Chilvers , R.A. John Challiss , Peter J. Barnes , Stafan R. Nahorski

DOI: 10.1016/0014-2999(89)90269-0

关键词: Inositol phosphateCortex (botany)StimulationTrachealis muscleInositolCarbacholBiologyEndocrinologyInternal medicineAgonistBasal (phylogenetics)

摘要: Abstract Agonist-stimulated changes in D-Ins(1,4,5)P 3 has been examined tracheal smooth muscle using a specific radioreceptor assay utilizing the binding of [ H] or 32 P]Ins(1,4,5)P to bovine adrenal cortex preparation. Carbachol produced maximal increase Ins(1,4,5)P concentration after 5 s (basal: 12.9 ± 0.8; stimulated: 27 1.5 pmol/mg protein) with an EC 50 6.7 0.8 μ M. With longer stimulation periods rapidly returned basal values by 30 s. This is first report mass measurements muscle.

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