Abstract
Virus envelope proteins were isolated from Triton X-100 extracts of purified Sendai virions by gel-filtration, ion-exchange and reversed-phase high-performance liquid chromatography (HPLC). The fusion protein F, the matrix protein M and the tetrameric and dimeric form of the HN protein were isolated by gel-filtration HPLC with a solvent containing 0.1% sodium dodecyl sulphate. HN and F were also isolated by ion-exchange HPLC with 0.1% Triton X-100 in the eluent. Reversed-phase HPLC was performed on a C 1 column with acetonitrile as the organic solvent. Especially the F 1 and F 2 component of the fusion protein F were obtained in pure form. The immunological activity of the proteins after HPLC was determined with an enzyme-linked immunosorbent assay (ELISA). After gel-filtration and ion-exchange HPLC, proteins still reacted with antiserum to the intact virus while proteins purified by reversed-phase HPLC did not react.
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