A Survey of Nucleotide Cyclases in Actinobacteria: Unique Domain Organization and Expansion of the Class III Cyclase Family in Mycobacterium tuberculosis [PDF]
, 2004 Cyclic nucleotides are well-known second messengers involved in the regulation of important metabolic pathways or virulence factors. There are six different classes of nucleotide cyclases that can accomplish the task of generating cAMP, and four of these
Krupa, A. +4 more
core +5 more sources
Genetic reduction of chronic muscle pain in mice lacking calcium/calmodulin-stimulated adenylyl cyclases [PDF]
, 2006 BACKGROUND: The Ca(2+)/calmodulin-stimulated adenylyl cyclase (AC) isoforms AC1 and AC8, couple NMDA receptor activation to cAMP signaling pathways in neurons and are important for development, learning and memory, drug addiction and persistent pain. AC1
Ko, Shanelle W +6 more
core +3 more sources
Genetic disruption of the core circadian clock impairs hippocampus-dependent memory [PDF]
, 2014 Perturbing the circadian system by electrolytically lesioning the suprachiasmatic nucleus (SCN) or varying the environmental light:dark schedule impairs memory, suggesting that memory depends on the circadian system.
Chen, Xuanmao +4 more
core +2 more sources
Guanylyl cyclase sees the light [PDF]
, 2008 Cyclic guanosine monophosphate (cGMP) is a critical second messenger that regulates cardiovascular function and vision in humans. Two recent papers, including one in BMC Structural Biology, have revealed atomic structures of the enzymes that catalyze the
Tesmer, John JG
core +2 more sources
Exchange of substrate and inhibitor specificities between adenylyl and guanylyl cyclases [PDF]
, 1998 The active sites of guanylyl and adenylyl cyclases are closely related. The crystal structure of adenylyl cyclase and modeling studies suggest that specificity for ATP or GTP is dictated in part by a few amino acid residues, invariant in each family ...
Beuve, A. +5 more
core +1 more source
Adenylyl Cyclase Localization Regulates Streaming during Chemotaxis [PDF]
, 2003 We studied the role of the adenylyl cyclase ACA in Dictyostelium discoideum chemotaxis and streaming. In this process, cells orient themselves in a head to tail fashion as they are migrating to form aggregates.
Barr, Valarie A. +2 more
core +1 more source
The dynamics of H-bonds of the hydration shells of ions, ATPase and NE-activated adenylyl cyclase on the coupling of energy and signal transduction [PDF]
arXiv, 2012 Glycerol titration distinguished from free water the local hydration shell involved in ATPase transition from active to inactive, with cooperativity for water n=16. Rat brain cortex: NE-stimulated and its basal AC in the absence of free Mg2+, allows a refractive state of AC with negative cooperativity for MgATP and ATP4-.
arxiv
The integrated model of cAMP-dependent DNA expression reveals an inverse relationship between cancer and neurodegeneration [PDF]
arXiv, 2016 The model for cAMP-dependent synaptic plasticity relates the characterization of a noradrenaline-stimulated adenylyl cyclase with DNA unzipping. Specific proteins condition cAMP insertion in specific sites of the DNA structure to direct cellular and synaptic differentiation in brain tissues, also providing coding. Metabolic-dependent ATP binding of Mg2+
arxiv
Signaling pathways for transduction of the initial message of the glycocode into cellular responses [PDF]
, 1998 The sugar units of glycan structures store information and establish an alphabet of life. The language of the oligosaccharide coding units is deciphered by receptors such as lectins and the decoded message can be transduced by multiple signaling pathways.
Gabius, Hans-Joachim, Villalobo, A.
core +1 more source
Characterization of the norepinephrine-activation of adenylate cyclase suggests a role in memory affirmation pathways. Overexposure to epinephrine inactivates adenylate-cyclase,a causal pathway for stress-pathologies [PDF]
BioSystems 100 (2010) p. 87-93, 2010 Incubation with noradrenaline (norepinephrine) of isolated membranes of rat's brain corpus striatum and cortex, showed that ionic-magnesium (Mg2+) is required for the neurotransmitter activatory response of Adenylate Cyclase [ATP pyrophosphate-lyase (cyclizing), (EC 4.6.1.1)], AC.An Mg2+-dependent response to the activatory effects of adrenaline, and ...
arxiv