Seqanswers Leaderboard Ad

Collapse

Announcement

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

  • Any program reports somatic CNVs with tumor fraction?

    I noticed Mutect reports somatic mutations with tumor fraction (ie the percentage of tumor cells that has said mutation). I think this makes sense because it reflects tumor heterogeneity.

    But when I tried ExomeCNV for somatic CNV. It doesn't report tumor fraction. (or maybe it does but how to do that?) Do you know any somatic CNV program that reports tumor fraction?

    Thanks

  • #2
    It is probably extra difficult to identify a 3-fold duplication in 10% of the tumor cells, since it will look like normal diploid levels + a small increase over the whole sample. And you wouldn't be able to distinguish a 3-fold duplication in 10% of the tumor cells from a 30-fold duplication in 1% of the tumor cells.

    Some programs may report it anyway, but I do not know of any.
    Providing nextRAD genotyping and PacBio sequencing services. http://snpsaurus.com

    Comment


    • #3
      Originally posted by SNPsaurus View Post
      It is probably extra difficult to identify a 3-fold duplication in 10% of the tumor cells, since it will look like normal diploid levels + a small increase over the whole sample. And you wouldn't be able to distinguish a 3-fold duplication in 10% of the tumor cells from a 30-fold duplication in 1% of the tumor cells.

      Some programs may report it anyway, but I do not know of any.
      Thanks for your reply. Presumably, I suppose the prevailing FISH/IHC method to detect HER2 amplification/overexpression also suffer from the same problem?

      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 on Modified Bases...
        Yesterday, 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, 04-11-2024, 12:08 PM
      0 responses
      39 views
      0 likes
      Last Post seqadmin  
      Started by seqadmin, 04-10-2024, 10:19 PM
      0 responses
      41 views
      0 likes
      Last Post seqadmin  
      Started by seqadmin, 04-10-2024, 09:21 AM
      0 responses
      35 views
      0 likes
      Last Post seqadmin  
      Started by seqadmin, 04-04-2024, 09:00 AM
      0 responses
      55 views
      0 likes
      Last Post seqadmin  
      Working...
      X