“…Thus, four dimers were described by Westermann et al (1980), eight by Terao et al (1980), 10 by Uchiumi et al (1981), and 36 by Tolan and Traut (1981 (Terao et al, 1980), dimethyl 3,3' -dithiobispropionimidate (Uchiumi et al, 1981), 2-iminothiolane (Tolan and Traut, 1981), and DBI (Westermann et al, 1980, and two different species were analysed: rat liver (Terao et al, 1980;Westermann et al, 1980;Uchiumi et al, 1981; this study) and rabbit reticulocytes (Tolan and Traut, 1981). Furthermore, certainly none of the methods used permits the identification of all cross-linked protein dimers for a complete comparison.…”