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Class: Alpha Beta (26913)
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Architecture: 3-Layer(aba) Sandwich (12045)
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Topology: Rossmann fold (7312)
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Homologous Superfamily: [code=3.40.50.2300, no name defined] (308)
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Escherichia coli. Organism_taxid: 562. Expression_system_vector_type:lac (1)
1TLFA:162-290,A:321-336; B:162-290,B:321-336; C:162-290,C:321-336; D:162-290,D:321-336; A:61-161,A:291-320; B:61-161,B:291-320; C:61-161,C:291-320; D:61-161,D:291-320UNPRECEDENTED QUATERNARY STRUCTURE OF E. COLI LAC REPRESSOR CORE TETRAMER: IMPLICATIONS FOR DNA LOOPING