Beta-1,3-galactosyltransferase 6 (B3GALT6) transfers a second galactose to the tetrasaccharide linker. Although it can act on substrates with a terminal beta-linked galactose residue, it prefers the sequence galactose-beta-1,4-xylose (Bai et al. 2001). B3GALT6 requires manganese as a cofactor (Zhou et al. 1999).
Hennet, T, Esko, JD, Bai, X, Brown, JR, Crawford, BE, Zhou, D
Hennet, T, Kamerling, JP, Dinter, A, Berger, EG, Vliegenthart, JF, GutiƩrrez Gallego, R, Zhou, D
galactosylxylosylprotein 3-beta-galactosyltransferase activity of B3GALT6 [Golgi membrane]
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