author_facet Watanabe, Y
Jakobs, K H
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Jakobs, K H
author Watanabe, Y
Jakobs, K H
spellingShingle Watanabe, Y
Jakobs, K H
Biochemical Journal
Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
Cell Biology
Molecular Biology
Biochemistry
author_sort watanabe, y
spelling Watanabe, Y Jakobs, K H 0264-6021 1470-8728 Portland Press Ltd. Cell Biology Molecular Biology Biochemistry http://dx.doi.org/10.1042/bj2370273 <jats:p>Stimulation of human platelet adenylate cyclase by the diterpene forskolin is associated with a decrease in the apparent substrate (MgATP) affinity of the enzyme. Addition of the stimulatory hormone prostaglandin E1 not only further increased the Vmax. of the forskolin-stimulated platelet adenylate cyclase but also caused a further increase in the Km value for MgATP, by up to 20-fold compared with basal conditions. On the other hand, the inhibitory hormone adrenaline decreased not only the Vmax. but also the Km value of the platelet adenylate cyclase stimulated by forskolin, with or without prostaglandin E1 present. The data indicate that forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones, but there is no such effect in the absence of the diterpene.</jats:p> Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones Biochemical Journal
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source_id 49
title Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_unstemmed Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_full Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_fullStr Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_full_unstemmed Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_short Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_sort forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (mgatp) affinity by hormones
topic Cell Biology
Molecular Biology
Biochemistry
url http://dx.doi.org/10.1042/bj2370273
publishDate 1986
physical 273-276
description <jats:p>Stimulation of human platelet adenylate cyclase by the diterpene forskolin is associated with a decrease in the apparent substrate (MgATP) affinity of the enzyme. Addition of the stimulatory hormone prostaglandin E1 not only further increased the Vmax. of the forskolin-stimulated platelet adenylate cyclase but also caused a further increase in the Km value for MgATP, by up to 20-fold compared with basal conditions. On the other hand, the inhibitory hormone adrenaline decreased not only the Vmax. but also the Km value of the platelet adenylate cyclase stimulated by forskolin, with or without prostaglandin E1 present. The data indicate that forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones, but there is no such effect in the absence of the diterpene.</jats:p>
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author Watanabe, Y, Jakobs, K H
author_facet Watanabe, Y, Jakobs, K H, Watanabe, Y, Jakobs, K H
author_sort watanabe, y
container_issue 1
container_start_page 273
container_title Biochemical Journal
container_volume 237
description <jats:p>Stimulation of human platelet adenylate cyclase by the diterpene forskolin is associated with a decrease in the apparent substrate (MgATP) affinity of the enzyme. Addition of the stimulatory hormone prostaglandin E1 not only further increased the Vmax. of the forskolin-stimulated platelet adenylate cyclase but also caused a further increase in the Km value for MgATP, by up to 20-fold compared with basal conditions. On the other hand, the inhibitory hormone adrenaline decreased not only the Vmax. but also the Km value of the platelet adenylate cyclase stimulated by forskolin, with or without prostaglandin E1 present. The data indicate that forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones, but there is no such effect in the absence of the diterpene.</jats:p>
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imprint Portland Press Ltd., 1986
imprint_str_mv Portland Press Ltd., 1986
institution DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229
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series Biochemical Journal
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spelling Watanabe, Y Jakobs, K H 0264-6021 1470-8728 Portland Press Ltd. Cell Biology Molecular Biology Biochemistry http://dx.doi.org/10.1042/bj2370273 <jats:p>Stimulation of human platelet adenylate cyclase by the diterpene forskolin is associated with a decrease in the apparent substrate (MgATP) affinity of the enzyme. Addition of the stimulatory hormone prostaglandin E1 not only further increased the Vmax. of the forskolin-stimulated platelet adenylate cyclase but also caused a further increase in the Km value for MgATP, by up to 20-fold compared with basal conditions. On the other hand, the inhibitory hormone adrenaline decreased not only the Vmax. but also the Km value of the platelet adenylate cyclase stimulated by forskolin, with or without prostaglandin E1 present. The data indicate that forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones, but there is no such effect in the absence of the diterpene.</jats:p> Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones Biochemical Journal
spellingShingle Watanabe, Y, Jakobs, K H, Biochemical Journal, Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones, Cell Biology, Molecular Biology, Biochemistry
title Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_full Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_fullStr Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_full_unstemmed Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_short Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
title_sort forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (mgatp) affinity by hormones
title_unstemmed Forskolin sensitizes human platelet adenylate cyclase to modulation of substrate (MgATP) affinity by hormones
topic Cell Biology, Molecular Biology, Biochemistry
url http://dx.doi.org/10.1042/bj2370273