sample condition biological preparation lane E1A1 E 1 A 1 E1A2 E 1 A 2 E1B1 E 1 B 1 E1B2 E 1 B 2 E2A1 E 2 A 1 E2A2 E 2 A 2 E2B1 E 2 B 1 E2B2 E 2 B 2 G1A1 G 1 A 1 G1A2 G 1 A 2 G1B1 G 1 B 1 G1B2 G 1 B 2 G2A1 G 2 A 1 G2A2 G 2 A 2 G2B1 G 2 B 1 G2B2 G 2 B 2