DNA, Coding, Template e RNA e trinca com código genético

dna.py

class DNA(object):
    def __init__(self):
        pass

    def getSingleTemplate(self, std):
        if std == 'A':
            return 'T'
        elif std == 'T':
            return 'A'
        elif std == 'G':
            return 'C'
        elif std == 'C':
            return 'G'

    def getSingleRNA(self, std):
        if std == 'A':
            return 'U'
        elif std == 'T':
            return 'A'
        elif std == 'G':
            return 'C'
        elif std == 'C':
            return 'G'

    # 6 - Dado uma fita codificante (coding) faça a complementar (template);
    def getFullTemplate(self, _coding):
        template = ''
        for i in _coding:
            template += self.getSingleTemplate(i)
        return template

    # 7 - Dado uma fita complementar(template) encontre a sequência de RNA correspondente;
    def getFullRNA(self, _type, _input):
        template = _input
        rna      = ''

        if _type == 'coding':
            template = self.getFullTemplate(_input)
        for i in template:
            rna += self.getSingleRNA(i)
        return rna

    def getCodingFromRNA(self, _rna):
        return _rna.replace('U','T')

    def getTranslation(self, _tree_letters):
        if _tree_letters in ('TTT', 'TTC'):
            return 'Phe'
        elif _tree_letters in ('TTA', 'TTG'):
            return 'Leu'
        elif _tree_letters in ('TCT', 'TCC', 'TCA', 'TCG'):
            return 'Ser'
        elif _tree_letters in ('TAT', 'TAC'):
            return 'Tyr'
        elif _tree_letters in ('TGT', 'TGC'):
            return 'Cys'
        elif _tree_letters in ('TGG'):
            return 'Trp'
        elif _tree_letters in ('CTT', 'CTC', 'CTA', 'CTG'):
            return 'Leu'
        elif _tree_letters in ('CCT', 'CCC', 'CCA', 'CCG'):
            return 'Pro'
        elif _tree_letters in ('CAT', 'CAC'):
            return 'His'
        elif _tree_letters in ('CAA', 'CAG'):
            return 'Gin'
        elif _tree_letters in ('CGT', 'CGC', 'CGA', 'CGG'):
            return 'Arg'
        elif _tree_letters in ('ATT', 'ATC', 'ATA'):
            return 'Ile'
        elif _tree_letters in ('ATG'):
            return 'Met'
        elif _tree_letters in ('ACT', 'ACC', 'ACA', 'ACG'):
            return 'Thr'
        elif _tree_letters in ('AAT', 'AAC'):
            return 'Asn'
        elif _tree_letters in ('AAA', 'AAG'):
            return 'Lys'
        elif _tree_letters in ('AGT', 'AGC'):
            return 'Ser'
        elif _tree_letters in ('AGA', 'AGG'):
            return 'Arg'
        elif _tree_letters in ('GTT', 'GTC', 'GTA', 'GTG'):
            return 'Val'
        elif _tree_letters in ('GCT', 'GCC', 'GCA', 'GCG'):
            return 'Ala'
        elif _tree_letters in ('GAT', 'GAC'):
            return 'Asp'
        elif _tree_letters in ('GAA', 'GAG'):
            return 'Giu'
        elif _tree_letters in ('GGT', 'GGC', 'GGA', 'GGG'):
            return 'Gly'

        else:
            return False


    def getFullTranslation(self, _rna):
        full_translation = []
        aminoacidos = []
        translation = ''
        trinca = ''
        for i in _rna:
            trinca += i
            if len(trinca) == 3:
                single = self.getTranslation(trinca)
                if single:
                    aminoacidos.append(single)
                else:
                    if len(aminoacidos) > 0:
                        full_translation.append(aminoacidos)
                    aminoacidos = []
                trinca = ''

        return full_translation

dna = DNA()
sequence = 'AAAAGGTCCACGCTTTCGCGCCCCGGT'

template = dna.getFullTemplate(sequence)
print('')
print('----- TEMPLATE -------')
print(template)
print('')

rna = dna.getFullRNA(_type='coding', _input=sequence)
print('----- RNA -------')
print(rna)
print('')

print('----- CODING FROM RNA -------')
codingFromRNA = dna.getCodingFromRNA(rna)
print(codingFromRNA)
print('')
print('----- FULL TRANSLATION -------')
print(dna.getFullTranslation(rna))