Seqanswers Leaderboard Ad

Collapse

Announcement

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

  • Tophat-fusion: Joining segment hits - FAILED

    Hi,

    I have been aligning RNAseq data using tophat-fusion for downstream analysis of circularRNA using CIRCexplorer2 (requires tophat-fusion and bowtie1)

    After trying many different configurations I have been successfully running alignment on 19/20 paired-end samples using: tophat v2.0.9, samtools v0.1.19, and bowtie v1.1.2 with the following command line:

    tophat -o output -p 8 --fusion-search --keep-fasta-order --bowtie1 --no-coverage-search --fusion-min-dist 200 th_bowtie1_index/genome R1.fastq R2.fastq

    With one sample though I am getting the following error in tophat.log:

    Joining segment hits
    [FAILED]
    Error running 'long_spanning_reads': what(): basic_string::substr



    And the below error in long_spanning_reads.segs.log:

    Loading fusions...done
    terminate called after throwing an instance of 'std:ut_of_range'
    what(): basic_string::substr

    (Full log files attached)

    I can’t seem to find any solution online except to change from bowtie1 to bowtie2 or re-download the index but the same settings/index files have been working with 19/20 other samples so I can’t imagine there is an issue with the index or running bowtie1 and I want to run the alignment consistently for all samples i.e. with the same index and bowtie version.

    I have also tried reducing the allocated memory but the same error is given.

    If you have any suggestions on how to fix this it would be greatly appreciated!
    Thanks very much in advance for you help with this!!
    Attached Files

Latest Articles

Collapse

  • seqadmin
    Recent Advances in Sequencing Analysis Tools
    by seqadmin


    The sequencing world is rapidly changing due to declining costs, enhanced accuracies, and the advent of newer, cutting-edge instruments. Equally important to these developments are improvements in sequencing analysis, a process that converts vast amounts of raw data into a comprehensible and meaningful form. This complex task requires expertise and the right analysis tools. In this article, we highlight the progress and innovation in sequencing analysis by reviewing several of the...
    Today, 07:48 AM
  • seqadmin
    Essential Discoveries and Tools in Epitranscriptomics
    by seqadmin




    The field of epigenetics has traditionally concentrated more on DNA and how changes like methylation and phosphorylation of histones impact gene expression and regulation. However, our increased understanding of RNA modifications and their importance in cellular processes has led to a rise in epitranscriptomics research. “Epitranscriptomics brings together the concepts of epigenetics and gene expression,” explained Adrien Leger, PhD, Principal Research Scientist...
    04-22-2024, 07:01 AM

ad_right_rmr

Collapse

News

Collapse

Topics Statistics Last Post
Started by seqadmin, Today, 07:17 AM
0 responses
11 views
0 likes
Last Post seqadmin  
Started by seqadmin, 05-02-2024, 08:06 AM
0 responses
19 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-30-2024, 12:17 PM
0 responses
20 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-29-2024, 10:49 AM
0 responses
28 views
0 likes
Last Post seqadmin  
Working...
X