Fig. 2. Densitometry results of erythrocyte membrane protein electrophoresis test. The protein fractions in HS patients and normal controls expressed as a relative quantity percentage (RQ%) of each protein (band 3, ankyrin, spectrin, and protein 4.2) in both Laemmli gel 5%-15% and Fairbanks gel 3.5%-17%. Band 3-RQ% in controls was -0.08±4.63 and 0.22±6.22, respectively in Laemmli and Fairbanks gels. Ankyrin-RQ% in controls was 1.14±6.24 and 2.20±8.29, respectively in Laemmli and Fairbanks gels. Spectrin-RQ% in controls was 0.97±6.22 and -0.72±5.60, respectively in Laemmli and Fairbanks gels. Protein 4.2-RQ% in controls was -0.38±5.07 and 1.38±6.53, respectively in Laemmli and Fairbanks gels. ***: p <0.001.