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    Biochem J. 1998 Oct 1;335 ( Pt 1):15-8.

    Signalling through the leukotriene B4 receptor involves both alphai and alpha16, but not alphaq or alpha11 G-protein subunits.

    Gaudreau R, Le Gouill C, Métaoui S, Lemire S, Stankovà J, Rola-Pleszczynski M.

    Immunology Division, Department of Pediatrics, Faculty of Medicine, Université de Sherbrooke, Sherbrooke, QC J1H 5N4 Canada.

    COS-7 cells transfected with the leukotriene (LT) B4 receptor (BLTR) cDNA were unable to produce LTB4-induced inositol phosphates (IPs) in spite of the presence of endogenous Galphai, Galphaq and Galpha11 proteins. Co-transfection of BLTR with Galpha16, however, resulted in high levels of IP production, which were 17-, 10- and 6-fold higher than with co-transfected Galpha11, Galphaq and Galpha14, respectively. Co-transfection of BLTR with phospholipase C (PLC) beta2, on the other hand, resulted in efficient IP production and co-transfection of BLTR with both Galpha16 and PLCbeta2 resulted in a greater than additive response.

    PMID: 9742207 [PubMed - indexed for MEDLINE]

    PMCID: PMC1219746

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