O se kenera beta-glucosidase (bgl3) mai Streptomyces sp.QM-B814 (American Type Culture Collection 11238) ua faʻapipiʻiina e ala i le faʻaogaina o le beta-glucosidase-negative mutant o Streptomyces lividans.O se faavaa faitau matala o 1440 nucleotides o loʻo faʻapipiʻiina se polypeptide o 479 amino acids na maua e ala i le faʻasologa.O le polotini fa'ailoga (Bgl3) o lo'o fa'aalia ai le tutusa tele (sili atu i le 45% fa'asinomaga) ma beta-glycosidases mai le aiga-1 glycosyl hydrolases.O le enzyme cloned, fa'amamāina pe a mae'a le ammonium sulphate precipitation ma lua chromatographic step, o le monomeric ma le mole mole 52.6 kDa, e pei ona fuafuaina e le tele spectrometry, ma le isoelectric point o pI 4.4.O le enzyme e foliga mai o se beta-glucosidase faʻatasi ai ma le lautele o mea e faʻapitoa, o loʻo galue i cellooligomers, ma faʻatino gaioiga transglycosylation.Ole fua fa'atatau Km mo p-nitrophenyl-beta-D-glucopyranoside ma cellobiose e 0.27 mM ma le 7.9 mM.O tau Ki mo le kulukose ma le delta-gluconolactone, faʻaaoga p-nitrophenyl-beta-D-glucopyranoside e fai ma sui, e 65 mM ma le 0.08 mM, i le faasologa.O le enzyme fa'amamaina e iai le pH sili ona maualuga o le pH 6.5 ma o le vevela sili ona lelei mo gaioiga e 50 tikeri
