Proteins
The coat protein (CP) of virus particles contains either a single protein species with a
molecular mass of 20 kDa (tymoviruses), 24.5–25 kDa (maculaviruses), or a major protein
of 21–21.5 kDa and a minor protein of 24.4–25 kDa (marafiviruses OBDV and MRFV).
The CP of two additional marafiviruses, PnMV and a strain of Bermuda grass etched line
virus (BELV), is made up of a single protein of c. 21 kDa