1887

Abstract

SUMMARY

Methods are described for the preparation of S-methionine-labelled influenza viruses, the purification of the nucleoprotein (NP) and matrix (M) proteins and the separation of peptides obtained by protease digestion by two-dimensional thin-layer chromatography. The maps of the M proteins of A/Okuda/57 (HN) and A/Finland/4/74 (HN) were very similar overall but differed in three peptides. Hence they could be clearly distinguished. Maps of the NP proteins of the same strains showed a greater number of differences.

A recombinant strain having the haemagglutinin and neuraminidase of the A/Finland/4/74 parent and the virulence of the A/Okuda/57 parent was shown to have the M and P proteins of A/Okuda/57.

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1977-09-01
2022-01-21
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