DNA encoding human leukotriene C4 synthase, polypeptides and uses therefor

摘要

An isolated nucleotide sequence encoding human leukotriene C4 synthase or variants of human leukotriene C4 synthase polypeptide, is provided. One embodiment is an isolated DNA sequence (SEQ ID NO.:1) encoding a human leukotriene C4 synthase polypeptide, that has three hydrophobic transmembrane domains. Also described are recombinant cells and plasmids containing the foregoing isolated DNA, preferably linked to a promoter. Isolated leukotriene C4 synthase is provided, having at least three hydrophobic transmembrane domains (SEQ ID NO.:2). Portions of the foregoing isolated human leukotriene C4 synthase polypeptide are also described. Antibodies with selective binding specificity for the polypeptides of the invention also are provided as well as a sensitive method for assay of human leukotriene C4. Methods for producing leukotriene C4 synthase as well as methods for testing for modulators of leukotriene C4 synthase activity are also described.