Fig. 1

Nucleotide composition of the PMPV-1 G gene. A sliding window view of the nucleotide composition of the PMPV-1 G gene, using 5% of the gene length as window size, shows that this gene has a low GC-content, comparable to the rest of the PMPV-1 genome, as well as a ~ 1400 nt-long region that is marked by a near-absolute absence of uracils (< 5%) and an abundance of cytosines (up to 50%). The unique nucleotide composition of the PMPV-1 G gene is also reflected in the amino acid composition of the corresponding G protein (see Fig. 5)