Abstract
Virus envelope proteins obtained by Triton X-100 extraction of Sendai virions were purified to a high degree by a combination of high-performance liquid chromatography (HPLC) methods. Size-exclusion HPLC on a TSK 4000 PW column with several concentrations of acetonitrile or ethanol-1-butanol in 0.1% hydrochloric acid as eluent was used as the first chromatographic step. Peak fractions were diluted in water and further fractionated on reversed-phase columns (TMS-250 or Vydac 218 TP). Size-exclusion HPLC with 45% acetonitrile in 0.1% hydrochloric acid, combined with reversed-phase HPLC on either column, was most suitable for obtaining highly purified F 2 protein. Antibodies obtained after injection of this protein were reactive with the intact virus.
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