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Definition
 
enEnglish
Anion Exchange Resins definition: High-molecular-weight insoluble polymers that contain functional cationic groups capable of undergoing exchange reactions with anions.
Anions definition: Negatively charged atoms, radicals or groups of atoms which travel to the anode or positive pole during electrolysis.
anion definition: negatively charged atoms, radicals or groups of atoms which travel to the anode or positive pole during electrolysis.
Superoxides definition: Highly reactive compounds produced when oxygen is reduced by a single electron. In biological systems, they may be generated during the normal catalytic function of a number of enzymes and during the oxidation of hemoglobin to METHEMOGLOBIN. In living organisms, SUPEROXIDE DISMUTASE protects the cell from the deleterious effects of superoxides.
superoxide definition: compound containing the highly reactive surperoxide radical O2-, which is produced by reduction of molecular oxygen in many biological oxidations.
Anion Transport Proteins definition: Membrane proteins whose primary function is to facilitate the transport of negatively charged molecules (anions) across a biological membrane.
Organic Anion Transport Proteins definition: A sub-family of sequence-related ORGANIC ANION TRANSPORTERS.
Anion Gap Measurement definition: The determination of the concentrations of anions, such as chloride and bicarbonate, subtracted from the concentration of cations, such as sodium and potassium, present in a plasma or serum sample.
Anion Gap definition: A computed estimate of the unmeasured anions (those other than the chloride and bicarbonate anions) in a biological specimen.
Chloride Anion Exchanger definition: Encoded by human SLC26A3 Gene (SLC26A/SulP Transporter Family), 764-aa 85-kDa Chloride Anion Exchanger is a sulfate/chloride/bicarbonate transmembrane glycoprotein exchange transporter containing 1 STAS domain and localized in lower intestinal columnar epithelial apical membranes and some goblet cells. Involved in absorbtion, SLC26A3 mediates electrolyte and fluid absorption. Defects in SLC26A3 are the cause of congenital chloride diarrhea (CLD). (NCI)
band 3 protein definition: integral membrane proteins of erythrocytes which are believed to be identical to the chloride-bicarbonate anion antiport pump.
Anion Exchange Protein 1, Erythrocyte definition: A ubiquitous membrane transport protein found in the plasma membrane of diverse cell types and tissues, and in nuclear, mitochondrial, and Golgi membranes. It is the major integral transmembrane protein of the erythrocyte plasma membrane, comprising 25% of the total membrane protein. It exists as a dimer and performs the important function of allowing the efficient transport of bicarbonate across erythrocyte cell membranes in exchange for chloride ion.
Multidrug Resistance-Associated Proteins definition: A sequence-related subfamily of ATP-BINDING CASSETTE TRANSPORTERS that actively transport organic substrates. Although considered organic anion transporters, a subset of proteins in this family have also been shown to convey drug resistance to neutral organic drugs. Their cellular function may have clinical significance for CHEMOTHERAPY in that they transport a variety of ANTINEOPLASTIC AGENTS. Overexpression of proteins in this class by NEOPLASMS is considered a possible mechanism in the development of multidrug resistance (DRUG RESISTANCE, MULTIPLE). Although similar in function to P-GLYCOPROTEINS, the proteins in this class share little sequence homology to the p-glycoprotein family of proteins.
Organic Anion Transport Protein 1 definition: A polyspecific transporter for organic cations found primarily in the kidney. It mediates the coupled exchange of alpha-ketoglutarate with organic ions such as P-AMINOHIPPURIC ACID.
Organic Anion Transport Polypeptides definition: A sub-family of sequence-related ORGANIC ANION TRANSPORTERS.
Organic Anion Transporters definition: Proteins involved in the transport of organic anions. They play an important role in the elimination of a variety of endogenous substances, xenobiotics and their metabolites from the body.
anion:anion antiporter activity definition: Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: anion A(out) + anion B(in) = anion A(in) + anion B(out). [GOC:ai, GOC:mtg_transport]
anion exchanger adaptor activity definition: The binding activity of a molecule that brings together an anion exchanger and one or more other molecules, permitting them to function in a coordinated way. [GOC:mtg_MIT_16mar07]
anion:cation symporter activity definition: Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: anion(out) + cation(out) = anion(in) + cation(in). [TC:2.A.1.14.-]
anion channel activity definition: Catalysis of the energy-independent passage of anions across a lipid bilayer down a concentration gradient. [GOC:dph, GOC:mtg_transport, ISBN:0815340729]
organic anion channel activity definition: OBSOLETE. [GOC:mtg_transport, ISBN:0815340729]
anion transmembrane transporter activity definition: Catalysis of the transfer of a negatively charged ion from one side of a membrane to the other. [GOC:def, GOC:df, GOC:mtg_transport, ISBN:0815340729]
anion homeostasis definition: Any process involved in the maintenance of an internal equilibrium of anions within an organism or cell. [GOC:ceb, GOC:jid, GOC:mah]
monovalent inorganic anion homeostasis definition: Any process involved in the maintenance of an internal equilibrium of monovalent inorganic anions within an organism or cell. [GOC:ai, GOC:jid, GOC:mah]
anion transport definition: The directed movement of anions, atoms or small molecules with a net negative charge, into, out of, within or between cells. [GOC:ai]
inorganic anion transport definition: The directed movement of inorganic anions into, out of, within or between cells. Inorganic anions are atoms or small molecules with a negative charge which do not contain carbon in covalent linkage. [GOC:krc]
organic anion transport definition: The directed movement of organic anions into, out of, within or between cells. Organic anions are atoms or small molecules with a negative charge which contain carbon in covalent linkage. [GOC:ai, GOC:krc]
Voltage-Dependent Anion Channels definition: A family of voltage-gated eukaryotic porins that form aqueous channels. They play an essential role in mitochondrial CELL MEMBRANE PERMEABILITY, are often regulated by BCL-2 PROTO-ONCOGENE PROTEINS, and have been implicated in APOPTOSIS.
Anion Transporter Binding definition: Anion Transporter Binding involves temporary non-covalent interaction of a molecule through intermolecular physical forces of attraction with a protein that, after conformational change, moves a bound ion carrying a negative charge across a cell membrane with (symport) or against (antiport) a concentration gradient resulting directly from the expenditure of energy.
anion binding definition: Interacting selectively with anions, charged atoms or groups of atoms with a net negative charge. [GOC:jl]
anion transmembrane-transporting ATPase activity definition: Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: ATP + H2O + anion(out) = ADP + phosphate + anion(in). [GOC:mlg]
cellular anion homeostasis definition: Any process involved in the maintenance of an internal equilibrium of anions at the level of a cell. [GOC:ceb, GOC:mah]
anion definition: Anion.
 
 
deGerman
Anion definition: [1] Chemie: negativ geladenes Teilchen
 
plPolish
anion definition: [1] Chemie: Anion
 
frFrench
anion definition: Ion portant une charge électrique négative.
 
slSlovenian
anion definition: anion.
anion definition: ''Nominatif singulier du nom'' anion.
anion definition: ''Accusatif singulier du nom'' anion.
 
esSpanish
anión definition: anion.