Figure 1. 10.1.1 antibody affinity purification of the antigen.
SDS PAGE analysis of input spleen lysate (βPreβ) and fractions #1β6 eluted with SDS from 10.1.1 antibody-sepharose column. Gel bands 1 to 3 were subjected to mass spectrometric identification. Protein bands of 90 and 94 kD both elute in fraction #3 (dots).