Unconfigured Ad

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • squirtlekip
    Junior Member
    • Aug 2014
    • 1

    #1

    pysam making "mini" bam and fasta files

    Hi everybody. Previously I was using samtools to create "mini bams" (taking large bams and chopping small regions from them) however I've recently had the desire to move to python to simplify my scripts.

    Previously I just used the command:
    "samtools view -b -h input.bam chr1:start-end chr7:start-end output.bam"

    I've played with pysams fetch and pileup however they appear to miss some of the reads (quantity wise) as opposed to just iterating over the samfile. However I am open to suggestions using those methods.

    In addition I would also like to use pysam to crop fasta files in the same manner however this isn't something I have done before.
  • dpryan
    Devon Ryan
    • Jul 2011
    • 3478

    #2
    pysam shouldn't be missing any reads, it's just a python interface to the same C functions that the samtools executable uses. If you can find reproducible examples of that then it's likely a bug.

    Comment

    Latest Articles

    Collapse

    • kinpict.com
      Reply to 16S/ITS Profiling vs. Shotgun Metagenomics: What Changes in Your Workflow?
      by kinpict.com
      The part about this topic feels surprisingly grounded, and the details on the page is the bit that made me slow down. I’d keep <a href="https://kinpict.com/">ai family photo generator</a> bookmarked for later.
      Today, 06:37 PM
    • SEQadmin2
      16S/ITS Profiling vs. Shotgun Metagenomics: What Changes in Your Workflow?
      by SEQadmin2





      NGS has revolutionized clinical microbiology by offering new ways to identify and surveil pathogens without prior knowledge of the target. One popular approach is 16S rRNA and ITS amplicon sequencing, which targets specific microbial markers. But studies are increasingly incorporating shotgun metagenomics, a technique that sequences all DNA from a sample without targeting specific microbial markers. This approach allows more detailed taxonomic classification,...
      10-30-2026, 06:46 AM

    ad_right_rmr

    Collapse

    News

    Collapse

    Topics Statistics Last Post
    Started by SEQadmin2, 11-12-2026, 07:59 AM
    0 responses
    27 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 11-05-2026, 09:25 AM
    0 responses
    35 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 11-03-2026, 11:54 AM
    2 responses
    56 views
    0 reactions
    Last Post kinpict.com  
    Started by SEQadmin2, 10-28-2026, 09:57 AM
    0 responses
    175 views
    0 reactions
    Last Post SEQadmin2  
    Working...