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Class: Mainly Beta (13760)
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Architecture: Beta Barrel (4804)
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Topology: Cathepsin D, subunit A; domain 1 (745)
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Homologous Superfamily: Acid Proteases (745)
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Simian immunodeficiency virus. Organism_taxid: 11723. Cell_line: s2. (1)
1SIPA:1-99ALTERNATIVE NATIVE FLAP CONFORMATION REVEALED BY 2.3 ANGSTROMS RESOLUTION STRUCTURE OF SIV PROTEINASE