Seqanswers Leaderboard Ad

Collapse

Announcement

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

  • Is there a way to determine the conservation of any genomic regions?

    We identified a long intergenic non-coding RNA in chicken, for example, located:
    exon1, chr1, 200000,201000,+
    exon2, chr1, 203000,204000,+
    Is there a way to determine conservation levels across species? Thanks!

  • #2
    You can find pre-computed pair-wise alignments and multiple alignments for the chicken genome here: http://hgdownload.soe.ucsc.edu/downloads.html#chicken

    Resources at Ensembl: http://www.ensembl.org/info/genome/compara/index.html

    Comment


    • #3
      On the UCSC Genome Browser, version WUGSC 2.1/galGal3 of the chicken genome has several conservation and comparative genomics tracks but this version is from 2006. The newer version ICGSC Gallus_gallus-4.0/galGal4 doesn't seem to have that many related tracks. I think these tracks are basically showing the data that GenoMax linked to but they're already in genome browser form.

      Comment


      • #4
        Thanks. For the well-studied organisms, there are multiple alignments. We can get phastcons and take them as conservation levels. For others, such as Alpaca genome, there are only pairwise alignments and no pre-computed phastcons, how to get conservation levels? Thanks again!
        Can we indirectly get the phastcons? For example, what we want is to get the conservation levels of 'Alpaca, chr1, +, 2000,000--2000,006'.
        First, we get the corresponding positions/regions on human genome, say 'Human, chr1, +, 2100,000--2100,006', according to the pairwise alignment Alpaca/Human. (http://hgdownload.soe.ucsc.edu/golde...icPac2/vsHg19/)
        Then, we get the phastcons of 'Human, chr1, +, 2100,000--2100,006' according to human 100-way multiple alignment (http://hgdownload.soe.ucsc.edu/golde.../multiz100way/).
        Last edited by emanlee; 07-05-2014, 07:02 PM.

        Comment

        Latest Articles

        Collapse

        • 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
        • 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

        ad_right_rmr

        Collapse

        News

        Collapse

        Topics Statistics Last Post
        Started by seqadmin, Yesterday, 08:47 AM
        0 responses
        12 views
        0 likes
        Last Post seqadmin  
        Started by seqadmin, 04-11-2024, 12:08 PM
        0 responses
        60 views
        0 likes
        Last Post seqadmin  
        Started by seqadmin, 04-10-2024, 10:19 PM
        0 responses
        59 views
        0 likes
        Last Post seqadmin  
        Started by seqadmin, 04-10-2024, 09:21 AM
        0 responses
        54 views
        0 likes
        Last Post seqadmin  
        Working...
        X