Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • zhoujiayi
    Member
    • Sep 2013
    • 13

    Problem in using GATK to do the realignment

    Hi, I am new to GATK. I met a problem when I tried to use "RealignerTargetCreator" to realign my BAM file. I got error " MESSAGE: SAM/BAM file SC-NL-001_CAGATC_rmdup_reorder.bam is malformed: SAM file doesn't have any read groups defined in the header. The GATK no longer supports SAM files without read groups".

    According to the answer of http://gatkforums.broadinstitute.org...med-bam-header, it seems the best way to solve this problem is going back to the raw data and do the processing again. I am wondering does it matter which software I am using to do the processing steps before GATK?

    My raw data files are paired-end illumina data. I used "trimmomatic" to get trimmed data. Then I used bowtie 2 to do the alignment.(GATK suggests to use BMA). After that I used samtools to do the sorting and removing the duplicates.(GATK suggests to use Picard) Then I met this problem when I tried to use GATK to do the realignment. Is it because I didn't use the software GATK suggested?

    By the way, how can I get a known indels file of HG19?

    Thank you.

Latest Articles

Collapse

  • SEQadmin2
    Proteomic Platforms: How to Choose the Right Analytical Strategy to Improve Detection and Clinical Applications
    by SEQadmin2


    Proteomics platforms are evolving rapidly, with advances in mass spectrometry and affinity-based approaches expanding what researchers can detect and at what scale. As the field moves toward deeper proteome coverage and clinical applications, scientists face an increasingly complex landscape of tools. This article will explore how researchers are navigating these choices to find the right platform for their work.

    The systematic characterization of the human proteome has
    ...
    07-20-2026, 11:48 AM
  • SEQadmin2
    Advanced Sequencing Platforms Tackle Neuroscience’s Toughest Genomics Problems
    by SEQadmin2



    Genomics studies in neuroscience face a special challenge due to the brain’s complexity and scarcity of samples. Mapping changes in cell type and state using conventional next-generation sequencing methods remains challenging. Advances in technologies like single-cell sequencing, spatial transcriptomics, and long-read sequencing have opened the door to deeper studies of the brain and diseases like Alzheimer’s, amyotrophic lateral sclerosis (ALS), and schizophrenia.
    ...
    07-09-2026, 11:10 AM
  • SEQadmin2
    Cancer Drug Resistance: The Lingering Barrier to Rising Survival
    by SEQadmin2



    Cancer survival rates have significantly increased in the last few decades in the United States, reaching a combined 70% 5-year survival rate by 2021. Behind this number, there are years of research to find new therapies, drug targets, and early detection methods. But there is one core challenge that keeps slowing down these advances, and it’s about drug resistance.

    There is no single reason why many patients don’t respond to treatment as expected. Cancer is...
    07-08-2026, 05:17 AM

ad_right_rmr

Collapse

News

Collapse

Topics Statistics Last Post
Started by SEQadmin2, 07-20-2026, 11:10 AM
0 responses
18 views
0 reactions
Last Post SEQadmin2  
Started by SEQadmin2, 07-13-2026, 10:26 AM
0 responses
32 views
0 reactions
Last Post SEQadmin2  
Started by SEQadmin2, 07-09-2026, 10:04 AM
0 responses
43 views
0 reactions
Last Post SEQadmin2  
Started by SEQadmin2, 07-08-2026, 10:08 AM
0 responses
29 views
0 reactions
Last Post SEQadmin2  
Working...