A quick codon table

Sometimes it’s nice to be able to have a codon table handy. Rather than typing out one by hand, theTranslate module contains the codon table of your choice in dictionary form:

from Bio import Translate
translater=Translate.unambiguous_dna_by_id[11]
bacterial_table=translater.table.forward_table

Note 1: See the NCBI Translation Tables for the correctid number to use for your sequence.

bacterial_table['TAT']
>>>'Y'

And here’s how to easily reverse it, where the keys are amino acids and the values are lists of codons:

back_table = {}
for key,value in bacterial_table.iteritems():
    try:
        back_table[value].append(key)
    except KeyError:
        back_table[value]=[key]