Table 1.

Results of primary screening.

Substrates	Number of positive clones – Hit rate
X-β-D-GalNac	47 – 2,3‰
X-β-D-GlcNac	67 – 3,3‰
X-α-D-Man	2 – 0,1‰
X-α-D-Neu5Ac	27 – 1,3‰
X-β-D-Man	17 – 0,8‰
X-α-L-Fuc	0
Single activities	Number of positive clones
X-β-D-GalNac	15
X-β-D-GlcNac	29
X-α-D-Man	1
X-α-D-Neu5Ac	20
X-β-D-Man	9
Multiple activities	Number of positive clones
X-β-D-Man + X-α-D-Neu5Ac	2
X-β-D-GlcNac + X-α-D-Neu5Ac	1
X-β-D-GlcNac + X-β-D-Man	2
X-β-D-GlcNac + X-β-D-GalNac	27
X-β-D-GlcNac + X-α-D-Man	1
X-β-D-GlcNac + X-β-D-GalNac + X-β-D-Man	1
X-β-D-GlcNac + X-β-D-GalNac + X-α-D-Neu5Ac	3
X-β-D-GlcNac + X-α-D-Man+ X-β-D-Man	2
X-β-D-GlcNac + X-β-D-GalNac + X-α-D-Neu5Ac + X- β-D-Man	1