[Tutor] finding a polymer of letters in a string

Hs Hs ilhs_hs at yahoo.com
Thu Jan 19 19:09:27 CET 2012

I am writing to see if I could any help.
I am trying to find if a mutation in gene falls in a polymer region of DNA. To explain in simplistic terms, 

Given a piece of DNA string, with following characters, I know where mutation happens.  Happens at T (in quotes with spaces.) 3 As before T and 4 As after T are removed in a disease. 

Given following sequence, I should be able to find if this T is in a polymer region. such as 'AAA' T 'AAAA. 


I am not sure if there are any methods in python to find these.  Do you think a script has to be written with more logic involving some known algorithms. 

Please advise. 

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