4. GS De Novo Assembler and GS Reference Mapper Appendices
: 4.9 Trimming and Screening Files
4.9
Trimming and Screening Files
Trimming and screening files use the same format (FASTA) and can even contain the same information. Each entry is simply a unique description line followed by one or more lines of sequence text. Only upper- and lower-case A, C, G, T, and N characters should be used. The N’s are expected to correspond to low quality sequence and will NOT be considered a match to any read character except an N. Do not use X’s or N’s as masking characters. An example follows:
