Correspondence: AR Beaudoin, Centre de Recherche sur les Mgcanismes de S6cr&ion,
D6partement de Biologie~ Facult~ des Sciences, Universit6 de Sherbrooke, Sherbrooke …

Living cells are in a constant process of information exchange with their environment. The
kind of information to which cells can respond is often chemical and largely deter-mined by …

Previous studies have indicated that human immunodeficiency virus (HIV) is enclosed with a
lipid envelope similar in composition to cell plasma membranes and to other viruses …

Adeno-associated viruses (AAV) are ubiquitous in the human population (> 90% of adults
are seropositive) but have never been implicated as the cause of any disease. They were …

The B1 (CD20) molecule is a Mr 33,000 phosphoprotein on the surface of human B
lymphocytes that may serve a central role in the humoral immune response by regulating B …

High-affinity IL-2-R binding results from an exceptional type of cooperative interaction
between two IL-2-binding proteins termed alpha and beta. When expressed together on the …

A cell line established from a patient with acute lymphoblastic leukemia was found to
express IL-2 binding sites with a novel, intermediate affinity compared with the characteristic …

Antibodies against synthetic peptides derived from the cDNA sequence of interferon-
induced 2', 5'-oligo (A) synthetase, and which immunoprecipitate the native enzyme activity …

Publisher Summary Successful preparation of crude extracts from eukaryotic cells and
tissues for enzyme purification requires close attention to conditions that may alter the …

Three cell lines of mature T cell origin derived from patients with cutaneous T cell lymphoma-
leukemias (CTCL) were found to be constitutive producers of T cell growth factor (L-TCGF) …