Make a Perl program translating 'all' combinations of triple bases into amino acids by MJ
#Code
print "Enter the DNA sequence: ";
$dna = <>;
chomp($dna);
$dna =~s/[^acgt]//ig; #specify parameters
my $dna = uc($dna);
my(%genetic_code) = (
'TCA' => 'S', 'TCC' => 'S', 'TCG' => 'S', 'TCT' => 'S', # Serine
'TTC' => 'F', 'TTT' => 'F', # Phenylalanine
'TTA' => 'L', 'TTG' => 'L', # Leucine
'TAC' => 'Y', 'TAT' => 'Y', # Tyrosine
'TAA' => '_', 'TAG' => '_', 'TGA' => '_', # Stop
'TGC' => 'C', 'TGT' => 'C', # Cysteine
'TGG' => 'W', # Tryptophan
'CTA' => 'L', 'CTC' => 'L', 'CTG' => 'L', 'CTT' => 'L', # Leucine
'CCA' => 'P', 'CCC' => 'P', 'CCG' => 'P', 'CCT' => 'P', # Proline
'CAC' => 'H', 'CAT' => 'H', # Histidine
'CAA' => 'Q', 'CAG' => 'Q', # Glutamine
'CGA' => 'R', 'CGC' => 'R', 'CGG' => 'R', 'CGT' => 'R', # Arginine
'ATA' => 'I', 'ATC' => 'I', 'ATT' => 'I', # Isoleucine
'ATG' => 'M', # Methionine
'ACA' => 'T', 'ACC' => 'T', 'ACG' => 'T', 'ACT' => 'T', # Threonine
'AAC' => 'N', 'AAT' => 'N', # Asparagine
'AAA' => 'K', 'AAG' => 'K', # Lysine
'AGC' => 'S', 'AGT' => 'S', # Serine
'AGA' => 'R', 'AGG' => 'R', # Arginine
'GTA' => 'V', 'GTC' => 'V', 'GTG' => 'V', 'GTT' => 'V', # Valine
'GCA' => 'A', 'GCC' => 'A', 'GCG' => 'A', 'GCT' => 'A', # Alanine
'GAC' => 'D', 'GAT' => 'D', # Aspartic Acid
'GAA' => 'E', 'GAG' => 'E', # Glutamic Acid
'GGA' => 'G', 'GGC' => 'G', 'GGG' => 'G', 'GGT' => 'G', # Glycine
);
my ($protein) = "";
for(my $i=0;$i<length($dna)-2;$i+=3)
{
$codon = substr($dna,$i,3);
$protein .= $genetic_code{$codon};
}
print "The amino acids is $protein";
<>;
#Result-Example
Perl Programming HW by MJ 20180604