Seqanswers Leaderboard Ad

Collapse

Announcement

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

  • What tools can I use to assign taxonomic rank to megablast outputs?

    I have a couple of transcriptomic sequences that were generated with different sequencing platforms such as Miseq and Hiseq. The output format is hence different than Sequence Read Archive NGS file formats. An example below, lets call it #1 (after splitting and trimming):

    >M01403:7:000000000-A45GT:1:1102:16645:1483_1:N:0:2
    TAATTGATCCGTTAA........

    whereas the SRA transcriptomic file would look like this after splitting and trimming (this one is #2):

    >SRR1005592.1_FCD114LACXX:1:1101:1187:2066_length=89
    TTCGCATGTGCCGTTTG......

    I have a pipeline where I can get the species level identification for most of the blast hits for a given SRA file (ie #2). However, this pipeline does not work #1, which I assume is due to the differences in identifier. I am not exactly sure why it is not working. Therefore I need suggestions on why it may not work and what other tools I can use for taxonomic unit identification for my megablast outputs.
    Alternatively, I need to tweak the first file (#1), make it look like #2, so that it is compatible with the tool that I am using to assign taxonomic ranks to my blast outputs. I am not sure how to do that. Thanks for suggestions!

  • #2
    BLAST+ can now include the NCBI taxonomy information in its output, see:
    This is an open letter to the NCBI BLAST+ team to request two simple enhancements which I think would be extremely useful - first and foremo...

    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
    37 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