According to alternative classifications, wheat gluten can be separated into three large groups:
sulfur-rich (Mw of ~50 kDa; α-, β-, γ-gliadins and B- and C-LMW glutenins), sulfur-poor
(Mw ~50 kDa; ω-gliadins and D-LMW glutenins) and high molecular weight (Mw ~100 kDa; HMW
glutenins) proteins