9Gon D, et al.Ricin[M].Institute for International Cooperation in Animal Biologics, 2004.19-20.
10ZHAN J B, de SOUSA M, CHADDOCK J A, et al.Restoration of lectin activity to a non-glycosylated ricin B chain mutant bythe intraduction of a novel N-glycosylation site[J].FEBS Letters, 1997,407 ( 3 ) :271-274.