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Coomassie-stained SDS-PAGE of purified recombinant proteins. (A) Antennapedia (Antp) protein (expected molecular weight-11 kDa) (B) p21 protein (expected molecular weight-23 kDa) and (C) Antp-p21 fusion protein (expected molecular weight-30 kDa) with molecular weight markers. An extra 2–3 kDa is added from the host vector sequence.
