Seqanswers Leaderboard Ad

Collapse

Announcement

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

  • SOLiD fastq file question

    Hi all,
    I just downloaded a public SOLiD whole genome dataset from the short read archive, and converted the .sra file to a fastq file. The fastq file is formated like this:

    @ERR123473.934 1_25_1048 length=120
    T100312003001020023222130331202112031020303121031301231232221G233113003011330303111102100131333312213333220011200121003033
    +ERR123473.934 1_25_1048 length=120
    !>@6@@@?@@=2@<@>2@?@>@@:@>=@@@2@@@?@=;@@@;@2@@/@/@>6@/?<2@8@?!@@@@@@@@@@@@@@@@@@@@@@@?@@@@>@@@@<@@@?@@@@@=@@@@@@@@2>@@</@@

    These data are a 1000 genomes sample sequenced with paired end, I believe with 2 X 60 reads. Why is it saying that the length is 120? Is the 'G' in the middle (highlighted in red), separating each read, and shouldn't they be as 2 separate entries in the file?

    I am just a little confused on the format here.
    Thanks for any help

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...
    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
57 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-10-2024, 10:19 PM
0 responses
53 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-10-2024, 09:21 AM
0 responses
45 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