Multiple sclerosis (MS) is an inflammatory disease of the central nervous system (CNS)
characterized by demyelination, with a relative sparing of axons. In MS patients, many …

The yeast Saccharomyces cerevisiae consumes mono-and disaccharides preferentially to
any other carbon source. Since sugars do not freely permeate biological membranes …

Ammonium is a nitrogen source supporting growth of yeast cells at an optimal rate. We
recently reported the first characterization of an NH 4+ transport protein (Mep1p) in …

AT most synapses, chemical signalling is terminated by a rapid reaccumulation of
neurotransmitter into presynaptic terminals1–5. Uptake systems for the biogenic amines are …

The tumor promoter phorbol 12-myristate 13-acetate (PMA) inhibits the growth of human
endothelial cells and induces differentiation into capillary-like, tubular structures. We have …

A complementary DNA clone for a serotonin (5HT) transporter has been isolated from rat
basophilic leukemia cells. The complementary DNA sequence predicts a 653-amino acid …

In Saccharomyces cerevisiae, the transport of ammonium across the plasma membrane for
use as a nitrogen source is mediated by at least two functionally distinct transport systems …

Transport of sugars is a fundamental property of all eukaryotic cells. Of particular importance
is the uptake of glucose, a preferred carbon and energy source. The rate of glucose …

Rat brain cDNA and genomic clones encoding three K+ channels, K, l, K, 2, and K, 3, have
been isolated by screening with Shaker probes and encode proteins of 602,530, and 525 …

Peripheral granulocytes from rheumatoid arthritis and reactive arthritis patients were recently
found to express higher levels of a newly defined Ag, termed M6, in comparison to …