... Zealand http://dx.doi.org/10.13039/501100001509 UOO1701 CRH Estradiol Ion channel Intrinsic excitability Ovariectomy M-type potassium channel A-type potassium channel Summary: Chronic estradiol replacement in ovariectomized mice influences voltage-gated potassium channel function...

... work is properly attributed. Summary: CatSper activity in bat spermatozoa, as well as events during capacitation, such as hyperactivation and plasma membrane hyperpolarization, correlate with sperm maturation during storage in the epididymis. CatSper Sperm storage Ion channel...

... is responsive to amino acid changes in disparate parts of the protein; changes in these different parts interact in complex ways. Allostery Cnidaria Ion channel Structure–function The voltage-gated potassium ion (Kv) channels are transmembrane protein tetramers, consisting of a pore domain (PD...

... by cellular anatomy; active components include ion channels specified by their selectivity and voltage dependence. A recurring theme is the role of inactivating potassium channels in regulating performance. Although different aspects of cnidarian behaviour are controlled by separate neuronal systems...

... © 2010. 2010 invertebrates ion channel olfaction phosphoinositides sensory transduction Phosphoinositides (PIs) are well known to play important and complex roles in the regulation of ion-transporting proteins, ranging from the maintenance of the structural integrity of signaling...

... that this similarity extended to the ORs, which were originally annotated as GPCRs. Surprisingly,recent evidence shows that insect ORs can act like ligand-gated ion channels,either completely or partially bypassing the amplification steps connected to the activation of G proteins. Although the involvement of G...

...Gabrielle J. Tompkins-MacDonald; Warren J. Gallin; Onur Sakarya; Bernard Degnan; Sally P. Leys; Linda M. Boland SUMMARY Ion channels establish and regulate membrane potentials in excitable and non-excitable cells. How functional diversification of ion channels contributed to the evolution...

.... A substantial proportion of neuronal energy consumption is related to the movements of ions across the neuronal cell membrane through ion channels, though other processes such as vesicle loading and transmitter recycling also consume energy. Many of the energetic costs within neurons are linked to 3Na + /2K...

..., of sodium and potassium currents of somatic muscle of larval Danio rerio to investigate their possible contribution to once-only firing. Our computer model incorporated simulated sodium and potassium ion channels based on steady-state and kinetic parameters derived from a recent electrophysiological study...

... shares some properties in common with ligand inhibition of DAT, SERT, NET and the γ-aminobutyric acid transporter (GAT1). † e-mail: wharvey@whitney.ufl.edu 21 5 2002 © The Company of Biologists Limited 2002 2002 ion channel potassium sodium amino acid transporter ionic...

... visual system central nervous system insect electrophysiology ion channel K + current Ca 2+ current locust Schistocerca gregaria In insects, the perception and processing of visual information has been widely studied in numerous preparations. The sensory input provided...

... 1998 © The Company of Biologists Limited 1998 intracellular Ca 2+ Bacillus thuringiensis lepidopteran cell line ion channel Ca 2+ transport Fura-2 planar lipid bilayer The inclusion bodies produced during sporulation by Bacillus thuringiensis , a Gram-positive soil...

..., the channel responded to FMRFamide. Taken together, these data provide the first evidence for a peptide-gated ion channel. Comparison of the properties of the expressed FaNaCh with the native neuronal channel show small differences in the sensitivities to some drugs and in channel conductance. It is not yet...

...Mary Kate Worden; Rami Rahamimoff; Edward A. Kravitz ABSTRACT Ion channel activity in the sarcolemmal membrane of muscle fibers is critical for regulating the excitability, and therefore the contractility, of muscle. To begin the characterization of the biophysical properties of the sarcolemmal...

...+ . It is suggested that the delayed outward component is due to a combination of (i) Ca 2+ entering the cell and activating a K + conductance and (ii) Na + entering the cell and stimulating the Na + /K + pump. Ca 2+ appears to regulate the permeability of the ACh-receptor-operated ion channel. Reducing the level...

...K. S. Kits; P. N. R. Usherwood ABSTRACT The ion-selectivity of the extrajunctional glutamate-gated ion channel in locust extensor tibiae muscle was studied using the patch-clamp technique. The alkali metal ions Li + , Na + , K + , Rb + and Cs + were all highly permeant, with reversal potentials...

... is an interburst closed state. * To whom reprint requests should be sent. 15 09 1986 © 1987 The Company of Biologists Ltd. 1987 ion channel stretch activation K + channel Lymnaea stagnalis Ventricular muscle cells of Lymnaea stagnalis heart, like many cell types...

... neurone growth cones. This provides the first direct evidence that channel modulation occurs in nerve processes and increases the likelihood of channel modulation at the nerve terminal. modulation ion channel cyclic AMP © 1986 by Company of Biologists 1986 Neurotransmitter actions can...

... mechanoreceptor voltage dependence ion channel protozoan Following the work of Jenkinson (1960) , (+)-tubocurarine (TC) has been regarded as a ‘competitive antagonist’ of acetylcholine at the vertebrate neuromuscular junction. However, the reports of Manalis (1977) , Katz & Miledi (1978...