Troque Week 3

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The Genetic Code, by computer

Complement of DNA

To find the complement of the DNA strand, the following command is used:

cat prokaryote.txt | sed "y/actg/tgac/"

Reading Frames

+1:     cat prokaryote.txt | sed "s/t/u/g" | sed "s/.../& /g" | sed -f genetic-code.sed | sed "y/acug/    /" | sed "s/ //g"
Yields: STIFQ-VRWPKKTILNLKRCLIPCSAYNPAASSAGGIL

+2:     cat prokaryote.txt | sed "s/t/u/g" | sed "s/^.//g" | sed "s/.../& /g" | sed -f genetic-code.sed |
        sed "y/acug/    /" | sed "s/ //g"
Yields: LLYFNRYDGQRRQY-T-NVA-YHVPRITQPPVPLAAF-

+3:     cat prokaryote.txt | sed "s/t/u/g" | sed "s/^..//g" | sed "s/.../& /g" | sed -f genetic-code.sed | 
        sed "y/acug/    /" | sed "s/ //g"
Yields: YYISIGTMAKEDNIELETLPNTMFRV-PSRQFRWRHFN

-1:     rev prokaryote.txt | sed "s/t/u/g" | sed "y/acug/ugac/" | sed "s/.../& /g" | sed -f genetic-code.sed |
        sed "y/acug/    /" | sed "s/ //g"
Yields: VKMPPAELAAGLYAEHGIRQRFKFNIVFFGHRTY-NIV

-2:     rev prokaryote.txt | sed "s/t/u/g" | sed "y/acug/ugac/" | sed "s/^.//g" | sed "s/.../& /g" | sed -f genetic-code.sed | 
        sed "y/acug/    /" | sed "s/ //g"
Yields: LKCRQRNWRLGYTRNMVLGNVSSSILSSLAIVPIEI--

-3:     rev prokaryote.txt | sed "s/t/u/g" | sed "y/acug/ugac/" | sed "s/^..//g" | sed "s/.../& /g" | sed -f genetic-code.sed | 
        sed "y/acug/    /" | sed "s/ //g"
Yields: -NAASGTGGWVIRGTWY-ATFQVQYCLLWPSYLLKYSR

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