PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26959282-5 2016 To gain structural insight into its substrate specificity, we determined crystal structures of TBG4 and its complex with beta-d-galactose. beta-D-galactose 121-137 beta-galactosidase 4 Solanum lycopersicum 95-99