4AZ1:
reference: Structure of the Trypanosoma cruzi protein tyrosine phosphatase TcPTP1, a potential therapeutic target for Chagas' disease., Lountos GT, Tropea JE, Waugh DS, Mol Biochem Parasitol. 2012 Nov 5. pii: S0166-6851(12)00262-9. doi:, 10.1016/j.molbiopara.2012.10.006. PMID: 23137716

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