Abstract
The amino acid compositions of the cowpea and sunn hemp strains of tobacco mosaic virus when isolated from Nicotiana tabacum and Phaseolus vulgaris were determined. When isolated from tobacco the cowpea and sunn hemp mosaic virus proteins had amino acid analyses that closely resembled type strain of tobacco mosaic virus and showed approximately 23 amino acid replacements from their bean forms. From discrepancies in the values obtained for the carboxyl end groups of virus preparations made from bean plants, and the loss of the C-terminal threonine from tobacco mosaic virus when it was incubated with bean sap, it was concluded that bean sap contained a carboxypeptidase-like enzyme.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
