Results 321 to 330 of about 244,573 (357)
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1993
Publisher Summary This chapter describes the enzyme (adenylyl cyclase) that effect the synthesis of Adenosine 3’,5’-cyclic monophosphate (cAMP) in various bacterial species. The content will rather reflect current major interests. The adenylyl cyclase from Escherichia coli has been a major subject of research interest ever since it was identified as ...
Natan Gollop +5 more
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Publisher Summary This chapter describes the enzyme (adenylyl cyclase) that effect the synthesis of Adenosine 3’,5’-cyclic monophosphate (cAMP) in various bacterial species. The content will rather reflect current major interests. The adenylyl cyclase from Escherichia coli has been a major subject of research interest ever since it was identified as ...
Natan Gollop +5 more
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Journal of the American Chemical Society, 2011
This study demonstrates that a tetraprenyl-β-curcumene cyclase, which was originally identified as a sesquarterpene cyclase that converts a head-to-tail type of monocycle to a pentacycle, also cyclizes a tail-to-tail type of linear squalene into a bicyclic triterpenol, 8α-hydroxypolypoda-13,17,21-triene. The 8α-hydroxypolypoda-13,17,21-triene was found
Hiroko Hoshino +4 more
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This study demonstrates that a tetraprenyl-β-curcumene cyclase, which was originally identified as a sesquarterpene cyclase that converts a head-to-tail type of monocycle to a pentacycle, also cyclizes a tail-to-tail type of linear squalene into a bicyclic triterpenol, 8α-hydroxypolypoda-13,17,21-triene. The 8α-hydroxypolypoda-13,17,21-triene was found
Hiroko Hoshino +4 more
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Guanyl cyclase of Bacilluslicheniformis
Biochemical and Biophysical Research Communications, 1972Abstract Guanyl cyclase activity was detected in extracts of Bacillus licheniformis strain A-5. The enzyme is associated with the 105,000 × g particulate fraction of the extract, requires Mn++ for full activity, has a pH optimum of 8.5, and has an apparent Km for GTP of 5mM.
R.W. Bernlohr, V.L. Clark
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American Journal of Respiratory Cell and Molecular Biology, 1999
Signal transduction via receptors that couple to guanine nucleotide binding proteins (G proteins) is pervasive throughout eukaryotic and prokaryotic biology. In humans, there are thought to be thousands of different G protein–coupled receptors (GPCRs), which carry out an amazingly diverse array of signaling, such as odorant detection, phototransduction,
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Signal transduction via receptors that couple to guanine nucleotide binding proteins (G proteins) is pervasive throughout eukaryotic and prokaryotic biology. In humans, there are thought to be thousands of different G protein–coupled receptors (GPCRs), which carry out an amazingly diverse array of signaling, such as odorant detection, phototransduction,
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Current Opinion in Structural Biology, 2006
Soluble guanylate cyclase (sGC) is a mammalian nitric oxide (NO) sensor. When NO binds to the sGC heme, its GTP cyclase activity markedly increases, thus generating cyclic GMP, which serves to regulate several cell signaling functions. A good deal is known about the kinetics and equilibrium of binding of NO to sGC, leading to a proposed multistep ...
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Soluble guanylate cyclase (sGC) is a mammalian nitric oxide (NO) sensor. When NO binds to the sGC heme, its GTP cyclase activity markedly increases, thus generating cyclic GMP, which serves to regulate several cell signaling functions. A good deal is known about the kinetics and equilibrium of binding of NO to sGC, leading to a proposed multistep ...
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Adenyl cyclase of Escherichiacoli
Biochemical and Biophysical Research Communications, 1969Abstract Adenyl cyclase activity was found in the cell-free extract of Crooke's strain of Escherichia coli . The activity was observed exclusively in the particulate fraction of the extract. Adenyl cyclase of E. coli required Mg++ for its activity, but no other cofactor was necessary.
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Target Recognition of Guanylate Cyclase By Guanylate Cyclase-Activating Proteins
2002Guanylate cyclase-activating proteins (GCAPs) control the activity of membrane bound guanylate cyclases in vertebrate photoreceptor cells. They form a permanent complex with guanylate cyclase 1 (ROS-GC1) at low and high Ca2+-concentrations. Five different target regions of GCAP-1 have been identified in ROS-GC1 at rather distant sites.
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On the assay of adenyl cyclase
Analytical Biochemistry, 1970Lutz Birnbaumer, Gopal Krishna
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