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restriction.py
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restriction.py
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import re
def revComp(dna):
revComp = ''
for char in dna:
rev=''
if char == 'A':
rev = 'T'
elif char == 'T':
rev = 'A'
elif char == 'G':
rev = 'C'
elif char == 'C':
rev = 'G'
revComp = rev + revComp
return revComp
file = open('dna7.txt', 'r')
folder = file.read()
dna = re.sub(r'\n', '' , folder)
ans = []
print(dna)
for i in range(len(dna)-3):
if dna[i:i+4] == revComp(dna[i:i+4]):
ans.append((i+1, 4))
for i in range(len(dna)-5):
if dna[i:i+6] == revComp(dna[i:i+6]):
ans.append((i+1, 6))
for i in range(len(dna)-7):
if dna[i:i+8] == revComp(dna[i:i+8]):
ans.append((i+1, 8))
for i in range(len(dna)-9):
if dna[i:i+10] == revComp(dna[i:i+10]):
ans.append((i+1, 10))
for i in range(len(dna)-11):
if dna[i:i+12] == revComp(dna[i:i+12]):
ans.append((i+1, 12))
print(ans)
for e in ans:
print(str(e[0]) +" " + str(e[1]))