(1) Metabolic Diseases Branch, NIDDK, 20892 Bethesda, (Maryland), (USA);(2) Diabetes Branch, NIDDK, 20892 Bethesda, (Maryland), (USA);(3) National Institutes of Health, Bld 10, Rm 9C-101, 20892 Bethesda, Maryland, USA
Abstract:
We studied rapid changes in location of cyclic GMP inTetrahymena pyriformis. Insulin caused cGMP localization in cilia and near the plasma membrane (0.5–1 min). Later (1–5 min) cGMP localization was diffuse in cytoplasm with perinuclear accentuation. Inactive insulin analogs did not elicit these changes.