Table 1. Melting temperatures of antithrombin variants determined by intrinsic fluorescence changes, as described in Materials and Methods section.

Variant	Glycans (n°)	Tm (X ± SD)
S137A	3	56.2±0.2
S137T	4	57.6±0.0
K133F/S137A	3	57.3±0.1
K133F	4	58.7±0.0
K133F/S137T	4	57.3±0.2

Each value was calculated as the mean (X) ± standard deviation (SD) of two independent measurements.