Exhibit 23.3
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of Protagonist Therapeutics, Inc., of our report dated March 10, 2020 relating to the financial statements, which appears in Protagonist Therapeutics’s Annual Report on Form 10-K for the year ended December 31, 2020.
/s/ PricewaterhouseCoopers LLP
San Jose, California
March 10, 2021