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Lin, B. et al.

Characterization of three members of murine alpha1,2-fucosyltransferases: change in the expression of the Se gene in the intestine of mice after administration of microbes.

We cloned three members of a GDP-fucose:beta-galactoside alpha1,2-fucosyltransferase (alpha1,2-fucosyltransferase) family, MFUT-I, -II, and -III, from a cDNA of murine small intestine, and determined their enzymatic properties after transfection of the genes into COS-7 cells, and their expression in murine tissues by Northern blotting. MFUT-I, -II, and -III exhibited sequence homology with the human H (78.4%), Se (79.0%), and Sec1 (74.9%) gene products, respectively. COS-7 cells transfected with MFUT-I and -II exhibited alpha1,2-fucosyltransferase activity and the best acceptor substrate for both gene products was GA1 to yield a fucosyl GA1 structure, but no activity was detected in COS-7 cells with MFUT-III. MFUT-II yielded a 3.5-kb mRNA transcript in several tissues, whereas MFUT-I and -III were predominantly expressed in epididymis and testis, respectively. The administration of microbes into germ-free mice resulted in a rapid increase of the MFUT-II gene (Se gene) for the synthesis of fucosyl GA1 in the intestine.[1]

References

Characterization of three members of murine alpha1,2-fucosyltransferases: change in the expression of the Se gene in the intestine of mice after administration of microbes. Lin, B., Saito, M., Sakakibara, Y., Hayashi, Y., Yanagisawa, M., Iwamori, M. Arch. Biochem. Biophys. (2001) [Pubmed]

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