Seqanswers Leaderboard Ad

Collapse

Announcement

Collapse
No announcement yet.
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • RNAseq on SOLiD via GALAXY

    Having some problems with my RNAseq analysis. In fact, I haven't even started yet, just converting files to the correct format for tophat. We do have a local version of tophat that can use colorspace fastq files. These are the problems I am having now:

    1) I have now both csfasta and qual files for all of my data. Can I convert to csfastq in GALAXY using the "Convert SOLiD output to fastq" tool? I tried this and got:

    @1_3_824
    T20201110030030121130131011102223311101111120212131
    +
    @*@@>0*;@@@8@@@@<**/.7-7--2566-*0>.3*52*02.5-.*6-2
    @1_5_4704
    T03120120133300020012131133123223033031000021030102
    +
    @@>/;@2/;;2=@2@@@2@2@@/@<@@@?@@//-/=@22/@/6;<@@@?;

    Is this color space fastq format? Ready to put into Tophat for mapping?

    2) Is it better for some reason to convert xsq files DIRECTLY to csfastq using the python script? If so, I am working on that with another collaborator, but I wanted to know before I do any in depth analysis with the files I can generate now.

    3) For some reason our local install of "Tophat for SOLiD Find splice junctions using RNA-seq data" does not have the reference genomes listed. I downloaded hg19 from iGenomes, but needed to convert it from gtf to fasta to use it. The program sees the file now, but I was wondering if this is the correct thing to do.

    Cheers,

    LTR

Latest Articles

Collapse

  • seqadmin
    Current Approaches to Protein Sequencing
    by seqadmin


    Proteins are often described as the workhorses of the cell, and identifying their sequences is key to understanding their role in biological processes and disease. Currently, the most common technique used to determine protein sequences is mass spectrometry. While still a valuable tool, mass spectrometry faces several limitations and requires a highly experienced scientist familiar with the equipment to operate it. Additionally, other proteomic methods, like affinity assays, are constrained...
    04-04-2024, 04:25 PM
  • seqadmin
    Strategies for Sequencing Challenging Samples
    by seqadmin


    Despite advancements in sequencing platforms and related sample preparation technologies, certain sample types continue to present significant challenges that can compromise sequencing results. Pedro Echave, Senior Manager of the Global Business Segment at Revvity, explained that the success of a sequencing experiment ultimately depends on the amount and integrity of the nucleic acid template (RNA or DNA) obtained from a sample. “The better the quality of the nucleic acid isolated...
    03-22-2024, 06:39 AM

ad_right_rmr

Collapse

News

Collapse

Topics Statistics Last Post
Started by seqadmin, 04-11-2024, 12:08 PM
0 responses
27 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-10-2024, 10:19 PM
0 responses
31 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-10-2024, 09:21 AM
0 responses
27 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-04-2024, 09:00 AM
0 responses
52 views
0 likes
Last Post seqadmin  
Working...
X