摘要:
The present invention is directed to methods for resisting or promoting template independent nucleotide addition to the 3' terminus of a DNA duplex. The process comprises amplifying a target nucleic acid using primers which comprise a 5' terminal sequence which resists or promotes non-templated nucleotide addition to the 3' terminus of the complementary nucleic acid strand. The invention is also directed to a kit for cloning 3' nucleotidylated duplex DNA.
摘要:
The present invention relates, in general, to a method of identifying ligands and antagonists of ligands. In particular, the present invention relates to a method of identifying ligands and antagonists of ligands which bind to cloned G.sub.8 - or G.sub.1 -coupled receptors. The present invention also relates to a cell that comprises a recombinant cyclic AMP sensitive reporter construct.
摘要:
An injection device injects small amounts of injectate into each of a plurality of cells. A first plate, which may be made from a silicon chip, includes a large number of evenly spaced cell wells, in a regular array. Each well includes a through hole in the chip. A top plate, also formed from a silicon chip, includes a plurality of injection needles, arranged in a regular array corresponding to the position of the cell wells. A suspension of cells is washed over the first plate and individual cells are retained by the individual wells. A vacuum may be applied to the cell wells through a manifold beneath the first plate, thus to retain the cells in place. Excess cells and suspension are removed by washing the plate. The second plate, including the injection needles, is positioned on the first plate so that the needles pierce the plurality of cells retained in the wells, thus simultaneously introducing the injectate into a large number of individual cells.
摘要:
The peptide having the following formula has a potent effect on the reproduction processes of fish and is termed Fish GnRH:pGlu-His-Trp-Ser-Tyr-Gly-Trp-Leu-Pro-Gly-NH.sub.2.Spawning of teleostei fish can be promoted by administration of effective amounts of the peptide.
摘要:
The invention described in this disclosure relates to a cloned cDNA encoding the serotonin transporter protein (5HTT) usually found in cells of part of the central nervous system, gut, adrenal gland and in platelets. The invention is further directed to the purified serotonin transporter protein and its use and immunogen for the production of anti-5HTT antibodies. The disclosure also discussses methods for use of the cDNA for diagnostic and treatment applications, and methods for use of permanent cell lines transformed with the serotonin transporter cDNA for pharmaceutical screening. The use of anti-5HTT antibodies as a diagnostic tool is also addressed.