> If the qualities of two base groups are clear enough (say 60 for "A" but 20 > for "T"), MIRA will call a base. If they're not clear enough (say 23 for "A" > and 26 for "T") it will be an IUPAC base. and what if the coverage of low quality base in the column is higher than the coverage of high quality base? for example: Consensus: TTTAAATT?CTA TTTAAATTGCTA TTTAAATTACTA TTTAAATTaCTA TTTAAATTaCTA Reference read: TTTAAATTACTA and how can we see the quality values of assembled paired end 75bp reads obtained from illumina? so we can edit it manually. Is it possible in GAP4 and any specific information file is required for it as there is no other file in case of Illumina except reads. _________________________________________________________________ Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_1