Table 15 Inhibition of hemagglutination of GFL by mono- and oligosaccharides and glycoproteins

Inhibitor a

Minimun inhibitor concentration (mM)b

Specificity factor c

Methyl β - N-acetylgalactosamine

0.104

1.00

Methyl α - N-acetylgalactosamine

0.125

1.20

 N-acetylgalactosamine

0.292

2.81

Methyl β - galactoside

1.88

18.1

Galactose

3.33

32.0

Fucose

3.33

32.0

Methyl α - galactoside

5.00

48.1

Galactosamine

12.5

120

L-Arabinose

35.3

339

Methyl α - N-acetylglucosamine

43.6

419

N-Acetylglucosamine

50.1

482

Glucosamine

66.2

637

Methyl β - glucoside

67.8

652

L-Rhamnose

78.7

757

Xylose

83.5

803

 

 

 

Lactulose [β Gal (1-->4) Fru]

1.66

16.0

N-Acetyllactosamine [β Gal (1-->4) GlcNAc]

2.04

19.6

Lactose [β Gal (1-->4) Glc]

2.92

28.1

Melibiose [αGal (1-->6) Glc]

3.33

32.0

Raffinose [αGal (1-->6) αGlc(1-->2) βFru]

6.66

64.0

 

 

 

GalNAc [α (1-->4) GalNAc]n         n=1

0.292

2.81

 

2

0.292

2.81

 

3

0.292

2.81

 

4

0.292

2.81

 

5

0.292

2.81

 

6

0.292

2.81

 

( µ g/ml )

 

Asialo-BSM

0.00514

 

BSM

0.0302

 

asialofetuin

26

 

fetuin

2080

 

 

 

 

 

a  Mannose, fructose, ribose, arabinose, glucose, mannosamine, methyl β - N-acetylglucosaminide, methyl β - glucoside, and maltose did not inhibit at all at concentrations up to 200 mM.  GalNH2 [α (1-->4) GalNH2]n  (n=1-7) and GalNAc [α (1-->4) GalNAc]7 did not exhinit at all at concentrations up to mM.

b These are minimum concentration required for inhibition of hemagglutination of GFL (titer 4)

c Calculated in relation to methyl β - N-galactosaminide.