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. 2010 Nov;51(11):3103–3116. doi: 10.1194/jlr.M005041

TABLE 1.

Percent composition of L-FABP secondary structures in the presence of glucose and glucose metabolites

Regular α-helices Distorted α-helices Regular β-sheets Distorted β-sheets Turns Unordered
% % % % % %
L-FABP 10.2 ± 0.3 9.8 ± 0.2 19.4 ± 0.6 10.5 ± 0.2 21.8 ± 0.3 27.3 ± 0.3
0.0006 mM Glucose 1.6 ± 0.6a 5.5 ± 0.2a 28.9 ± 0.6a 12.4 ± 0.1a 20.7 ± 0.5c 29.9 ± 0.2a
0.006 mM Glucose 3.3 ± 1.0a 6.7 ± 0.6a 25.4 ± 1.6a 12.3 ± 0.2a 22.5 ± 0.9 29.3 ± 0.5c
0.06 mM Glucose 0.7 ± 0.1a 4.9 ± 0.2a 29.8 ± 0.5a 12.1 ± 0.2a 20.7 ± 0.5c 29.7 ± 0.4b
0.6 mM Glucose 11.6 ± 0.7 10.3 ± 0.4 17.7 ± 1.0 9.7 ± 0.4 22.1 ± 0.4 28.2 ± 0.2c
6 mM Glucose 10.2 ± 0.2 9.6 ± 0.2 19.0 ± 0.6 11.3 ± 0.2b 23.5 ± 0.2a 26.5 ± 0.6
20 mM Glucose 7.8 ± 1.3 5.7 ± 1.4b 14.6 ± 3.0 13.4 ± 0.4a 25.1 ± 1.1c 33.2 ± 3.7
30 mM Glucose 11.0 ± 5.3 4.6 ± 1.4b 6.3 ± 1.9a 13.9 ± 1.0b 21.1 ± 2.4 43.2 ± 5.7c
0.0006 mM Maltose 9.8 ± 0.7 9.5 ± 0.6 21.9 ± 1.5 11.0 ± 0.2 20.6 ± 0.7 26.7 ± 0.7
0.006 mM Maltose 8.9 ± 0.5 9.2 ± 0.3 21.7 ± 0.9 11.5 ± 0.7 22.0 ± 0.6 26.0 ± 0.3
0.06 mM Maltose 10.2 ± 0.2 9.7 ± 0.2 20.2 ± 0.6 11.0 ± 0.4 22.2 ± 0.3 26.4 ± 0.7
0.6 mM Maltose 8.8 ± 0.8 9.0 ± 0.3 19.6 ± 0.6 11.3 ± 0.3c 23.0 ± 0.8 27.8 ± 0.2
6 mM Maltose 8.5 ± 1.8 10.7 ± 1.6 21.2 ± 4.4 11.2 ± 2.6 22.3 ± 3.1 28.7 ± 1.4
20 mM Maltose 2.2 ± 0.8a 5.4 ± 0.7a 26.0 ± 0.9a 13.0 ± 0.4a 23.4 ± 0.9 29.6 ± 0.4c
30 mM Maltose 9.6 ± 1.6 8.1 ± 3.1 20.9 ± 2.1 11.5 ± 1.9 21.9 ± 3.4 28.1 ± 2.1
Glucose-1-Phosphate 3.8 ± 0.8a 6.2 ± 0.5a 26.2 ± 1.2a 11.5 ± 0.1a 20.7 ± 0.4b 27.8 ± 0.6
Glucose-6-Phosphate 4.6 ± 0.8a 6.5 ± 0.5a 25.4 ± 1.2a 11.4 ± 0.2a 21.2 ± 0.3c 27.8 ± 0.6

Significant differences between L-FABP structural composition in the presence of sugar compared with L-FABP structural composition in the absence of sugar (L-FABP). L-FABP, liver fatty acid binding protein.

a

P < 0.001, n = 3–6.

b

P < 0.01, n = 3–6.

c

P < 0.05, n = 3–6.