Figure 9.

The input page of the “PadSeq Tool”. Selecting a genotype from the list will place a default length into the “Length” field. This value can be edited, if necessary. The backbone character can be changed from the default “N”. Each of the two input files must be specified, along with the starting position (co-ordinate) at which each fragment should be placed. The tool will “wrap” sequence data, which extends beyond the length specified, as may be required when processing HBV sequence data.