>d3vdbb4 b.1.4.1 (B:626-730) beta-Galactosidase, domains 2 and 4 {Escherichia coli [TaxId: 562]} ffqfrlsgqtievtseylfrhsdnellhwmvaldgkplasgevpldvapqgkqlielpel pqpesagqlwltvrvvqpnatawseaghisawqqwrlaenlsvtl