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  • ptong7
    Member
    • Oct 2008
    • 10

    SAM file flag problem

    Hi all,
    Is any body know what's the the flag means in the SAM file.
    The Flag I got looks different with the SAM manual.

    Thanks!

    Here is a sample of my sam file.

    HWI-EAS283:8:1:1:695#0 69 * 0 0 * * 0 0 NACAAGGCATTGTTGTTGCTATCATTGCTTGCAAGCAGGAATNGCTAATGGAAGACTTCTTTTTTTTTGTGTACTT %/:56465,577-91-265//:######################################################
    HWI-EAS283:8:1:1:695#0 133 * 0 0 * * 0 0 AAANCGCTACGTAATGATTGCAGTGAGCACAGAGCGCCCTACTGCACTCCAGCCTGGGAAACAGAGCGCGATTCCG ############################################################################
    HWI-EAS283:8:1:1:749#0 99 chr7 91549950 37 76M = 91550245 354 NACCTATCTTAATTACGTTTCAAAGTATATACTCTTTTATAANAAATGAGCTCCATAACTTAAAAGCTAGATAACA %0:<;;9::7779<;;99979707999;::9:;::9:<<75.%*5789197978599################### XT:A:U NM:i:3 SM:i:37 AM:i:37 X0:i:1 X1:i:0 XM:i:3 XO:i:0 XG:i:0 MD:Z:0T41C31A1
    HWI-EAS283:8:1:1:749#0 147 chr7 91550245 37 17S59M = 91549950 -354 ATTGTGTTAGACCGTGAGTCCATAAAAATATATAGAGGTAATCTGTGGGCGTTTAGTAAATGGTGGTCCTACNACT #####################################################################B6>%42B XT:A:M NM:i:12 SM:i:37 AM:i:37 XM:i:12 XO:i:0 XG:i:0 MD:Z:2A4C9T1T4A5A6C0T0G5T1T0T6T3
    HWI-EAS283:8:1:1:1047#0 69 * 0 0 * * 0 0 NTTTTTTGTTCCTTTTTTTTCAAGAGGCCAGAGGCAGAGGCCNTTGTCATTTTCTGTGTGTCCAGGTAATTGCGTA %1:::98789:::999:::::985226#################################################
    HWI-EAS283:8:1:1:1047#0 133 * 0 0 * * 0 0 ACCNCGCCTGCCGAGTTTTTCCTTTCTATATTCTTAGTCGTTAAGAATGTTCTATCATGTTGTAATTTTTGTAGTC 0###########################################################################
  • nilshomer
    Nils Homer
    • Nov 2008
    • 1283

    #2
    Originally posted by ptong7 View Post
    Hi all,
    Is any body know what's the the flag means in the SAM file.
    The Flag I got looks different with the SAM manual.

    Thanks!

    Here is a sample of my sam file.

    HWI-EAS283:8:1:1:695#0 69 * 0 0 * * 0 0 NACAAGGCATTGTTGTTGCTATCATTGCTTGCAAGCAGGAATNGCTAATGGAAGACTTCTTTTTTTTTGTGTACTT %/:56465,577-91-265//:######################################################
    HWI-EAS283:8:1:1:695#0 133 * 0 0 * * 0 0 AAANCGCTACGTAATGATTGCAGTGAGCACAGAGCGCCCTACTGCACTCCAGCCTGGGAAACAGAGCGCGATTCCG ############################################################################
    HWI-EAS283:8:1:1:749#0 99 chr7 91549950 37 76M = 91550245 354 NACCTATCTTAATTACGTTTCAAAGTATATACTCTTTTATAANAAATGAGCTCCATAACTTAAAAGCTAGATAACA %0:<;;9::7779<;;99979707999;::9:;::9:<<75.%*5789197978599################### XT:A:U NM:i:3 SM:i:37 AM:i:37 X0:i:1 X1:i:0 XM:i:3 XO:i:0 XG:i:0 MD:Z:0T41C31A1
    HWI-EAS283:8:1:1:749#0 147 chr7 91550245 37 17S59M = 91549950 -354 ATTGTGTTAGACCGTGAGTCCATAAAAATATATAGAGGTAATCTGTGGGCGTTTAGTAAATGGTGGTCCTACNACT #####################################################################B6>%42B XT:A:M NM:i:12 SM:i:37 AM:i:37 XM:i:12 XO:i:0 XG:i:0 MD:Z:2A4C9T1T4A5A6C0T0G5T1T0T6T3
    HWI-EAS283:8:1:1:1047#0 69 * 0 0 * * 0 0 NTTTTTTGTTCCTTTTTTTTCAAGAGGCCAGAGGCAGAGGCCNTTGTCATTTTCTGTGTGTCCAGGTAATTGCGTA %1:::98789:::999:::::985226#################################################
    HWI-EAS283:8:1:1:1047#0 133 * 0 0 * * 0 0 ACCNCGCCTGCCGAGTTTTTCCTTTCTATATTCTTAGTCGTTAAGAATGTTCTATCATGTTGTAATTTTTGTAGTC 0###########################################################################
    Typically, the flag field is converted to an integer value for display. You will have to infer the bits set by their sum. In the newest trunk code, you can use "samtools view" with either the "-x" or "-X" for better viewing (C code only).

    Comment

    • ptong7
      Member
      • Oct 2008
      • 10

      #3
      Hi nilshomer,
      I try "samtools view -x aln.sorted.bam <region>".
      but I got this "view: illegal option -- x"

      Comment

      • nilshomer
        Nils Homer
        • Nov 2008
        • 1283

        #4
        Did you download the latest developers version from the trunk (not the release)?

        Comment

        • ptong7
          Member
          • Oct 2008
          • 10

          #5
          Thanks nilshomer, It works...

          Comment

          • hihoios
            Junior Member
            • Jun 2022
            • 1

            #6
            it's been a long time but the problem i had is the same happy wheels unblocked

            Comment

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