>d1jz1i1 b.1.4.1 (I:220-333) beta-Galactosidase, domains 2 and 4 {Escherichia coli [TaxId: 562]} tqisdfhvatrfnddfsravleaevqmcgelrdylrvtvslwqgetqvasgtapfggeii derggyadrvtlrlnvenpklwsaeipnlyravvelhtadgtlieaeacdvgfr