Ion Transport - Research News and Information

Saturday, January 10, 2009

Direct metal transfer between periplasmic proteins identifies a bacterial copper chaperone.

9 Oct 2008 Transition metals require exquisite handling within cells to ensure that cells are not harmed by an excess of free metal species. In gram-negative bacteria, copper is required in only small amounts in the periplasm, not in the cytoplasm, so a key ... Read more...

Conformationally gated metal uptake by apomanganese superoxide dismutase.

7 Oct 2008 Metal uptake by apomanganese superoxide dismutase in vitro is a complex process exhibiting multiphase "gated" reaction kinetics and a striking sigmoidal temperature profile that has led to a model of conformationally gated metal binding, requiring ... Read more...

Disruption of the CFTR gene produces a model of cystic fibrosis in newborn pigs.

24 Sep 2008 Almost two decades after CFTR was identified as the gene responsible for cystic fibrosis (CF), we still lack answers to many questions about the pathogenesis of the disease, and it remains incurable. Mice with a disrupted CFTR gene have greatly ... Read more...

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Latest indexed articles for 'Ion Transport'

These are the very latest articles for this heading:

• Direct metal transfer between periplasmic proteins identifies a bacterial copper chaperone. 9 Oct 2008
• Conformationally gated metal uptake by apomanganese superoxide dismutase. 7 Oct 2008
• Disruption of the CFTR gene produces a model of cystic fibrosis in newborn pigs. 24 Sep 2008
• NFAT-dependent excitation-transcription coupling in heart. 24 Sep 2008
• The type IV mucolipidosis-associated protein TRPML1 is an endolysosomal iron release channel. 12 Sep 2008
• The crustacean gill (Na+,K+)-ATPase: allosteric modulation of high- and low-affinity ATP-binding sites by sodium and potassium. 3 Sep 2008
• Mechanisms underlying rate-dependent remodeling of transient outward potassium current in canine ventricular myocytes. 19 Aug 2008
• Peptide inhibitors use two related mechanisms to alter the apparent calcium affinity of the sarcoplasmic reticulum calcium pump. 13 Aug 2008
• Plasma urate level is directly regulated by a voltage-driven urate efflux transporter URATv1 (SLC2A9) in humans. 11 Aug 2008
• Multidrug efflux transporter, AcrB--the pumping mechanism. 7 Aug 2008
• An obligatory heterodimer of 14-3-3beta and 14-3-3epsilon is required for aldosterone regulation of the epithelial sodium channel. 5 Aug 2008
• Identification of pore residues engaged in determining divalent cationic permeation in transient receptor potential melastatin subtype channel 2. 5 Aug 2008
• Phosphate is essential for inhibition of the mitochondrial permeability transition pore by cyclosporin A and by cyclophilin D ablation. 4 Aug 2008
• Modeling ion transport in tethered bilayer lipid membranes. 1. Passive ion permeation. 3 Aug 2008
• Mechano-perception in Chara cells: the influence of salinity and calcium on touch-activated receptor potentials, action potentials and ion transport. 3 Aug 2008
• Ion permeation through a Cl--selective channel designed from a CLC Cl-/H+ exchanger. 2 Aug 2008
• Characterization of the TaALMT1 protein as an Al3+-activated anion channel in transformed tobacco (Nicotiana tabacum L.) cells. 31 Jul 2008
• Cystic fibrosis transmembrane conductance regulator ion channel function testing in recurrent acute pancreatitis. 30 Jul 2008
• Cyclic adenosine monophosphate regulation of ion transport in porcine vocal fold mucosae. 30 Jul 2008
• Physiological and molecular mechanisms of osmoregulatory plasticity in killifish after seawater transfer. 30 Jul 2008

See a longer list of these articles.

Technical information about 'Ion Transport'

Definition: The movement of ions across energy-transducing cell membranes. Transport can be active, passive or facilitated. Ions may travel by themselves (uniport), or as a group of two or more ions in the same (symport) or opposite (antiport) directions.

Descriptor UI: D017136

Alternative terms: Ion Transport; Transport, Ion; Ion Exchange, Intracellular; Exchange, Intracellular Ion; Intracellular Ion Exchange; Active Ion Transport; Ion Transport, Active; Transport, Active Ion; Uniport; Passive Ion Transport; Ion Transport, Passive; Symport; Ion Cotransport; Cotransport, Ion; Facilitated Ion Transport; Ion Transport, Facilitated; Antiport;

Related Mesh Headings: Ion Pumps; Antiporters; Symporters;

Allowable Qualifiers: drug effects; genetics; immunology; physiology; radiation effects; ethics;

Tree Number: G03.495.166.500;

History Note: 93

Technical Notes: in biol systems: do not confuse with ION EXCHANGE, a physicochem process; coord NIM with endogenous substance /metab (IM) or with exogenous substance /pharmacokin (IM); if active transport, coord with BIOLOGICAL TRANSPORT, ACTIVE