1887

Abstract

Summary

The 32000 mol. wt. (32K) non-structural protein of alfalfa mosaic virus, P3, has previously been detected in a crude membrane fraction of infected tobacco leaves, where it accumulated transiently at the beginning of the infection period. We show here, by immunoblotting with an antiserum to a synthetic peptide corresponding to the C terminus of the protein, that the majority of P3 is in the cell wall fraction where it remains throughout infection, both at 25 °C and at 10 °C. The cell wall-associated, P3-related material is heterogeneous and contains polypeptide species of slightly lower electrophoretic mobility than the major translation product of RNA 3, which suggests that P3 may be post-translationally modified.

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/content/journal/jgv/10.1099/0022-1317-67-10-2233
1986-10-01
2022-01-25
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