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Fig. 3. SDS-PAGE (12.5%) of the purified stiffening protein (H-tensilin).
(A) H-tensilin was run in the presence (left lane) and in the absence
(right lane) of 0.1 mol l1 dithiothreitol (DTT). Total
protein of 0.5 µg was loaded in each lane. (B) Sugar chain detection. Alpha
1 acid glycoprotein (AGP; positive control; first and third lane) and the
purified H-tensilin (second and fourth lane) were run on a gel under
reducing condition, and the proteins were electroblotted on a PVDF membrane
and stained with Coomassie Blue (first and second lane) or with G. P. Sensor
stain (third and fourth lane). The same amount of protein was loaded in the
first and third lane and in the second and fourth lane. Positions of molecular
mass markers and dye front (DF) apply to both A and B.