formaldehyde treatment of ricinus communis agglutinin , a nonmitogenic toxic 120 000 molecular weight ( mw ) lectin , yielded two distinct protein fractions : one was heterogeneous and contained high molecular weight lectin polymers ( greater than 120 000 ) , and the other was a homogeneous 120 000 mw protein .
C0023206
lectin
C0033684
protein