Results 91 to 100 of about 8,032 (234)
Guanylyl cyclases with the topology of mammalian adenylyl cyclases and an N-terminal P-type ATPase-like domain in Paramecium, Tetrahymena and Plasmodium [PDF]
We cloned a guanylyl cyclase of 280 kDa from the ciliate Paramecium which has an N-terminus similar to that of a P-type ATPase and a C-terminus with a topology identical to mammalian adenylyl cyclases.
Reimer, Andreas +6 more
core +1 more source
Abstract Catecholamines are classically viewed as neuronal transmitters and adrenal hormones; however, accumulating evidence demonstrates that sources other than nerve fibres and adrenal medulla play a fundamental role in local organ regulation. Physiological paradoxes, such as preserved organ function after denervation or transplantation, challenge a ...
Mariana G. de Oliveira +3 more
wiley +1 more source
Mycobacterial adenylyl cyclases: Biochemical diversity and structural plasticity
The conversion of adenine and guanine nucleoside triphosphates to cAMP and cGMP is carried out by nucleotide cyclases, which vary in their primary sequence and are therefore grouped into six classes.
Shenoy, Avinash R. +5 more
core +1 more source
Abstract Background and Purpose β2‐adrenoceptor (β2AR) agonists are the cornerstone of asthma therapy and promote bronchodilation through Gαs signalling in airway smooth muscle (ASM), but their efficacy is limited by β‐arrestin‐mediated β2AR desensitization.
Sushrut D. Shah +7 more
wiley +1 more source
ABSTRACT Aim Glucagon is a key regulator of glucose and energy metabolism, yet the dose–response effects of glucagon on markers of metabolism in humans are not fully characterised. We investigated the dose‐dependent effects of glucagon on glucose metabolism, β‐cell secretion and markers of hepatic metabolism in healthy adults.
Sophie Betty Brock +4 more
wiley +1 more source
Spatially compartmentalized phase regulation of a Ca2+-cAMP-PKA oscillatory circuit
Signaling networks are spatiotemporally organized to sense diverse inputs, process information, and carry out specific cellular tasks. In β cells, Ca2+, cyclic adenosine monophosphate (cAMP), and Protein Kinase A (PKA) exist in an oscillatory circuit ...
Brian Tenner +9 more
doaj +1 more source
Soluble adenylyl cyclase in the eye
Adenylyl cyclases (ACs) are a family of enzymes which convert ATP to cAMP, an essential intermediate in many signal transduction pathways. Of the 10 AC genes in man, 9 fall into the category of transmembrane ACs (tmACs), which associate with G-protein coupled receptors (GPCRs) and are activated by forskolin.
Lee, Yong S. +2 more
openaire +2 more sources
Summary Alpha‐2‐adrenoreceptor agonists provide analgesia when used as sole agents but can also be used in combination with other drugs for their additive and potentially synergistic effects. Further, because of their effects on blood flow, alpha‐2‐adrenoreceptor agonists act to extend and perhaps intensify the effects of drugs, such as local ...
J. Brandly +4 more
wiley +1 more source
Cyclic AMP signalling in pancreatic islets
Cyclic 3'5'AMP (cAMP) is an important physiological amplifier of glucose-induced insulin secretion by the pancreatic islet β-cell, where it is formed by the activity of adenylyl cyclases, which are stimulated by glucose, through elevation in ...
Nigel J. Pyne +7 more
core +1 more source

