4U7V:
reference: Triggering HIV polyprotein processing by light using rapid photodegradation of a tight-binding protease inhibitor., Schimer J, Pavova M, Anders M, Pachl P, Sacha P, Cigler P, Weber J, Majer P, Rezacova P, Krausslich HG, Muller B, Konvalinka J, Nat Commun. 2015 Mar 9;6:6461. doi: 10.1038/ncomms7461. PMID: 25751579

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