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Definition
 
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Calcium Channels definition: Voltage-dependent cell membrane glycoproteins selectively permeable to calcium ions. They are categorized as L-, T-, N-, P-, Q-, and R-types based on the activation and inactivation kinetics, ion specificity, and sensitivity to drugs and toxins. The L- and T-types are present throughout the cardiovascular and central nervous systems and the N-, P-, Q-, & R-types are located in neuronal tissue.
calcium channel definition: voltage-dependent cell membrane glycoproteins selectively permeable to calcium ions.
Calcium Channel definition: An ion channel with selective permeability to calcium.
Ion Channels definition: Gated, ion-selective glycoproteins that traverse membranes. The stimulus for channel gating can be a membrane potential, drug, transmitter, cytoplasmic messenger, or a mechanical deformation. Ion channels which are integral parts of ionotropic neurotransmitter receptors are not included.
membrane channel definition: molecule-sized pores in biomembranes that permit the passage of hydrophilic solutes such as inorganic ions, and the proteins that form such pores and control their permeability.
Ion Channel definition: A transmembrane pore that presents a hydrophilic channel for ions to cross a lipid bilayer down their electrochemical gradients. Some degree of ion specificity is usually observed and typically a million ions per second may flow. Channels may be permanently open, like the potassium leak channel or they may be voltage gated, like the sodium channel or ligand gated like the acetylcholine receptor.
Potassium Channels definition: Cell membrane glycoproteins that are selectively permeable to potassium ions. At least eight major groups of K channels exist and they are made up of dozens of different subunits.
potassium channel definition: cell membrane glycoproteins that are selectively permeable to potassium ions.
Potassium Channel definition: Ion channel selective for potassium ions. There are several types, each with different functions.
Sodium Channels definition: Cell membrane glycoproteins selective for sodium ions. Fast sodium current is associated with the action potential in neural membranes.
24 further definitions >>
Publications
 

ClC chloride channels

Joe Mindell et al.

Genome Biology , 2001

MolAxis: a server for identification of channels in macromolecules

Eitan Yaffe et al.

Nucleic Acids Research , 01 Jul 2008

DDESC: Dragon database for exploration of sodium channels in human

Sunil Sagar et al.

BMC Genomics , 20 Dec 2008

ATP release via anion channels

Ravshan Z. Sabirov et al.

Purinergic Signalling , 01 Dec 2005

Metal interactions with voltage- and receptor-activated ion channels.

H P Vijverberg et al.

Environmental Health Perspectives , 01 Sep 1994

Identification of the prokaryotic ligand-gated ion channels and their implications for the mechanisms and origins of animal Cys-loop ion channels

Asba Tasneem et al.

Genome Biology , 2005

KCNE1 Constrains the Voltage Sensor of Kv7.1 K + Channels

Liora Shamgar et al.

PLoS ONE , 09 Apr 2008

Excitability Constraints on Voltage-Gated Sodium Channels

Elaine Angelino et al.

PLoS Computational Biology , 01 Sep 2007

Corticolimbic Expression of TRPC4 and TRPC5 Channels in the Rodent Brain

Melissa A. Fowler et al.

PLoS ONE , 27 Jun 2007

Voltage-dependent Ca 2+ channels, not ryanodine receptors, activate Ca 2+ -dependent BK potassium channels in human retinal pigment epithelial cells

Sönke Wimmers et al.

Molecular Vision , 15 Dec 2008

593 further publications >>