Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • Lien
    Member
    • Dec 2009
    • 47

    donwload dbSNP131 in BED-format

    Hi all,

    I am studying SNVs from Illumina paired-end data. I was wondering if I could make an overlap between my identified SNVs and the SNPs that are already known. In order to do that, I would need a BED-formate with the (at least) 4 columns:
    Chr
    Position (zero-based)
    Position (one-based)
    SNIP ID (rs-name).

    I already looked at the UCSC and the NCBI website and I find there the SNPs in different files, per chromosome, but with a lot of additional information. Is there some shortcut to obtain the data I want, or do I need to download each file separately, then merge them, and then delete all the information I'm not interested in ?

    Thanks a lot!
    Lien
  • epigen
    Senior Member
    • May 2010
    • 101

    #2
    There is the whole dbSNP (snp131.txt.gz) at UCSC downloads:



    but to make a BED file you have to reorder/extract the columns (easy way e.g. with awk).

    Barbara

    Comment

    • Lien
      Member
      • Dec 2009
      • 47

      #3
      Thanks a lot!

      Comment

      Latest Articles

      Collapse

      • GATTACAT
        Reply to Nine Things a Sample Prep Scientist Thinks About Before Sequencing
        by GATTACAT
        Love this - good data definitely starts from good input, and poor input can only give relatively poor data. I particularly like the mention of Nanodrop/absorbance based methods for quantification. It's such a toss up if you'll get an accurate reading or what amounts to a randomly generated number, and a lot of library/sequencing related issues can be traced back to poor quant.
        07-01-2026, 11:43 AM
      • SEQadmin2
        Nine Things a Sample Prep Scientist Thinks About Before Sequencing
        by SEQadmin2


        I’m not a sequencing expert. I’m a purification scientist who uses NGS to evaluate workflows my group develops. With this perspective, we think about the sample first and the NGS workflow second. The sequencer is an exceptionally honest reporter, but it can only report on what you give it, so whether you get clean, interpretable data from an NGS workflow is largely determined before you begin.

        Here are nine questions we think about, in roughly the order they matter, before...
        06-18-2026, 07:11 AM

      ad_right_rmr

      Collapse

      News

      Collapse

      Topics Statistics Last Post
      Started by SEQadmin2, 07-02-2026, 11:08 AM
      0 responses
      7 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-30-2026, 05:37 AM
      0 responses
      12 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-26-2026, 11:10 AM
      0 responses
      20 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-17-2026, 06:09 AM
      0 responses
      54 views
      0 reactions
      Last Post SEQadmin2  
      Working...