[galaxy-user] How much can I trimm my reads

2012-08-23 Thread Du, Jianguang
Dear All, I am analysing RNA-seq datasets for the differential splicing events between cell types. My reads are 36bp long. In order to increase the quality of reads, I need to trim some nucleotides from ends. How many nucleotides can I trim? I am afraid that if I trim too much, the reliability

Re: [galaxy-user] How much can I trimm my reads

2012-08-23 Thread Jennifer Jackson
Hello Jianguang, This general protocol is also in the RNA-seq tutorial: http://main.g2.bx.psu.edu/u/jeremy/p/galaxy-rna-seq-analysis-exercise -- Understanding and QCing the reads That said, I had a sample of your data from before and I ran FastQC on it and see what you mean, the quality drops