>4uzs_A mol:protein length:689 BETA-GALACTOSIDASEMSKRRKHSWPQPLKGAESRLWYGGDYNPDQWPEEVWDDDIRLMKKAGVNLVSVGIFSWAKIEPEEGKYDFDWLDRAIDKLGKAGIAVDLASATASPPMWLTQAHPEVLWKDERGDTVWPGAREHWRPTSPVFREYALNLCRRMAEHYKGNPYVVAWHVSNEYGCHNRFDYSDDAMRAFQKWCKKRYKTIDAVNEAWGTAFWAQHMNDFSEIIPPRYIGDGNFMNPGKLLDYKRFSSDALKELYIAERDVLESITPGLPLTTNFMVSAGGSMLDYDDWGAEVDFVSNDHYFTPGEAHFDEVAYAASLMDGISRKEPWFQMEHSTSAVNWRPINYRAEPGSVVRDSLAQVAMGADAICYFQWRQSKAGAEKWHSSMVPHAGEDSQIFRDVCELGADLGRLSDEGLMGTKTVKSKVAVVFDYESQWATEYTANPTQQVDHWTEPLDWFRALADNGITADVVPVRSDWDSYEIAVLPCVYLLSEETSRRVREFVANGGKLFVTYYTGLSDENDHIWLGGYPGSIRDVVGVRVEEFAPMGNDMPGALDHLDLDNGTVAHDFADVITSTADTSTVLASYKAERWTGMNEVPAIVANGYGDGRTVYVGCRLGRQGLAKSLPAMLGSMGLSDLAGDGRVLRVERADAAAASHFEFVFNRTHEPVTVDVEGEAIAASLAHVDDGRATIDPTGVVVLRR