Seqanswers Leaderboard Ad

Collapse

Announcement

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

  • Number of reads per isotig

    I have 454 data from cDNA sample. If I would like to report the number of reads of every isotig/contig, is it a correct way first to check the number of reads/contig from 454Allcontigs.fna. And after that check from the 454Isotigs.txt file which contigs forms an isotigs and sum the reads? What ways do you use? Is this a good way to report the most abundant transcripts?

  • #2
    Different parts of the same read may end up in different contigs, and isotigs are generated by combining contigs in different ways. This makes it difficult to get the number of reads used for an isotig. See also my explanation elsewhere (here and here)

    Comment


    • #3
      I understand.

      Which way would you determine the most abundant transcripts? Is this possible? Can you ever use the number of reads?

      Comment


      • #4
        A really crude way would be to divide number of reads (for a contig) by contig length. But, using real statistics (FPKM and all that) gives a much more reliable answer.

        Comment


        • #5
          real statistics

          Can you recommend any good articles about how this statistical work has been done?

          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