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Class: Alpha Beta (26913)
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Architecture: 2-Layer Sandwich (8480)
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Topology: GTP Cyclohydrolase I, domain 2 (31)
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Homologous Superfamily: [code=3.30.1130.10, no name defined] (31)
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Human (Homo sapiens) (1)
1FB1A:117-250; B:117-250; C:117-250; D:117-250; E:117-250CRYSTAL STRUCTURE OF HUMAN GTP CYCLOHYDROLASE I