>d1hn1b1 b.1.4.1 (B:220-333) beta-Galactosidase, domains 2 and 4 {Escherichia coli} tqisdfhvatrfnddfsravleaevqmcgelrdylrvtvslwqgetqvasgtapfggeii derggyadrvtlrlnvenpklwsaeipnlyravvelhtadgtlieaeacdvgfr