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).
Zhou, D, Dinter, A, GutiƩrrez Gallego, R, Kamerling, JP, Vliegenthart, JF, Berger, EG, Hennet, T
Bai, X, Zhou, D, Brown, JR, Crawford, BE, Hennet, T, Esko, JD
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