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Gel filtration chromatogram of the HP0892-His/His-HP0893 mixture. Arrows above the chromatograms indicate the positions of the elution peaks of the molecular mass markers (conalbumin, 75 kDa; ovalbumin, 44 kDa; carbonic anhydrase, 29 kDa; RNase A, 13.7 kDa). SDS-PAGE of the elution fraction corresponding to the HP0892-HP0893 complex is shown beside the elution peak.
