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(A) Structure of human anti-TNF-α peptide synthesized in tetra-branched form. Amino acids of the four peptide sequences are indicated as one letter code. (B) MS profile of purified peptide, analysis of sample was performed with a Bruker Daltonic ultraflex MALDI TOF/TOF mass spectrometer. MW is indicated. (C) RP-HPLC profile of human anti-TNF-α peptide after purification. Retention time is indicated.
