Hello I had already preprocese my data. I have extract the files from .sff with the script extract_sff (I chosse the min_left_clip enougth to dont raise any warnig). After that I use seqclean and only after that I run mira with -job=denovo,accurate,est,454 , i turn of the polyA processing because seqclean already do it... Best regardsDiogo Santos From: gierski@xxxxxxxxxxxxxxxxxx To: mira_talk@xxxxxxxxxxxxx Subject: [mira_talk] Re: MIRA vs Newbler (454 est's) Date: Mon, 25 Jul 2011 17:29:42 +0200 Hello, Start with reading a MIRA manual: http://mira-assembler.sourceforge.net/docs/DefinitiveGuideToMIRA.html Part about 454 sequences is important: http://mira-assembler.sourceforge.net/docs/DefinitiveGuideToMIRA.html#chap_454 Usually you need to preproces data. After that you call mira with: mira -project=NAME_OF_PROJECT -job=accurate,denovo,genome,454 -- With best regards, Przemyslaw Gierski. From: mira_talk-bounce@xxxxxxxxxxxxx [mailto:mira_talk-bounce@xxxxxxxxxxxxx] On Behalf Of Diogo Santos Sent: Montag, 25. Juli 2011 17:19 To: mira_talk@xxxxxxxxxxxxx Subject: [mira_talk] MIRA vs Newbler (454 est's) Hello I have received data from an EST's project from 454. they make the assembly with Newbler 2.5 and they get 5869 contigs (length>100) with coverage 11x (I know it's low, but it's what I get:( ). I try to use MIRA to make some testing and use the original data to reassemble, but I get a strange result (19378 contigs with length >100 and coverage 4x). Can you teel wich parameters should I change? Thanks Diogo Santos