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Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption "Experts" and to the use of our report dated March 15, 2013, in Amendment No. 2 to the Registration Statement (Form S-1 File No. 188657) and related Prospectus of PTC Therapeutics, Inc.
/s/ Ernst & Young LLP
Metro Park, New Jersey
June 4, 2013