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  • A simple question on cDNA and protein sequence

    I downloaded cDNA sequence file and protein sequence files, see below:
    >ENST00000400890 cdna:known supercontig::GL000195.1:44724:86646:-1 gene:ENSG00000215781
    GTCTCCTCTTTCGCCTCCTCCGCTTTGGGAGCCCCGGGCTACTCTTTCACAGCCCCTGTT
    GCCCTGTGATCTGTAGGTCCTTGGGGACGCACAGTTAAGATGACAGGACATCCTGGAAGC
    TGGGAAATGATATGTATTCATTTCCTACCACCGTAGTGGAAGAGATACTATCCCTATCTT
    TACAACTGATAGCATTTCCAACAGTAAGCTGTGAGATTCTGCTTGAAATCACCTCTCAAA
    CAAATAAAAAACAGACCTGGGAGACATGCTACGCTCATTCTGCTGAAGAAATAGGCATCA
    TAGCTGGGAAACGGATTCACAAGACCCAGGCTGTTCCCTACATATGTTTCCTCCTCCGAC
    ATCAGTTCATCAGTCAATCAAGCCATGTGAGAGTGGAGGCCTTGTATTCCCTATTATTCT
    TGGGCACTCTACTCCAAGTAGGAAAAGGCCAGGAGGTCCTGTTAAAGGATGCACTCAGAG
    CCCGGGCTCCCTAA


    -------------------
    >ENSP00000383683 pep:known supercontig::GL000195.1:44724:86646:-1 gene:ENSG00000215781 transcript:ENST00000400890
    MYSFPTTVVEEILSLSLQLIAFPTVSCEILLEITSQTNKKQTWETCYAHSAEEIGIIAGK
    RIHKTQAVPYICFLLRHQFISQSSHVRVEALYSLLFLGTLLQVGKGQEVLLKDALRARAP


    They are not matched for the same gene and transciption, why? I'm a newcomer.
    Thanks.

  • #2
    Not sure if this answers your question but... are you sure they are not matching?

    It seems like the 3rd frame of that cDNA sequence contains the ORF that results in the protein sequence you have. The ORF opens at position 132 of the cDNA sequence and goes to the end. This was determined by BLAST 2 Sequences online at NCBI.

    Click that link, open the 'blastx' tab, paste the cDNA sequence in the first box and the protein sequence in the second box. Then hit the 'BLAST' button.

    Result:
    Attached Files

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