Seqanswers Leaderboard Ad

Collapse

Announcement

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

  • Can I BLAST/BLAT a subregion of the genome?

    I'm trying to find iterations of (or close matches to) a 35bp sequence. BLAT is not helpful as there are too many iterations of the sequence in the human genome for it to deal with*.
    Is there a way I can BLAT/BLAST/similar for matches to a query sequence just in a subset of the human genome, e.g. a single chromosome?


    *I'm assuming this is the problem. I get the error 'no matches found' but I have often got this in the past when the problem was, in fact, that too many matches existed.

  • #2
    I just tried a 33 mer and got results back with blat against human genome. You can provide sequence of a single chromosome to restrict your search for that specific chromosome (or even a region).

    Have you tried to use bowtie1, bbmap or a similar NGS aligner?

    Comment

    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
    30 views
    0 likes
    Last Post seqadmin  
    Started by seqadmin, 04-10-2024, 10:19 PM
    0 responses
    32 views
    0 likes
    Last Post seqadmin  
    Started by seqadmin, 04-10-2024, 09:21 AM
    0 responses
    28 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