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Class: All alpha proteins (14657)
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Fold: Sigma2 domain of RNA polymerase sigma factors (19)
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Superfamily: Sigma2 domain of RNA polymerase sigma factors (19)
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Family: Sigma2 domain of RNA polymerase sigma factors (17)
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Protein domain: Sigma70 (10)
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Escherichia coli [TaxId: 562] (1)
1SIGA:CRYSTAL STRUCTURE OF A SIGMA70 SUBUNIT FRAGMENT FROM ESCHERICHIA COLI RNA POLYMERASE