Figure 1.
Western blot analysis of mAb Guy’s 13 expressed in N. tabacum. Samples from mAb expressed transgenically or transiently in N. tabacum were separated on nonreducing 4–15% SDS-PAGE gels, and proteins were blotted onto nitrocellulose membrane. For detection, anti-Fc (A, lanes 1–3) and anti-κ (B, lanes 4–6) antisera were used. Lanes 1 and 4, nontransgenic N. tabacum (WT); lanes 2 and 5, crude leaf extract of transgenic N. tabacum plants expressing Guy’s 13 (transgenic); lanes 3 and 6, crude leaf extract from transiently expressed mAb Guy’s 13 (transient). Asterisk represents fully assembled antibody. Letters a–f represent antibody fragments.