NOVELTY - Beta-glucosidase variant comprising an amino acid sequence having a sequence identity of at least 80% to SEQ ID NO: 2 and comprises an amino acid substitution at one position corresponding to Gln211 at positions 1 to 871 of SEQ ID NO: 2, where the beta-glucosidase variant has a reduced transglycosylation activity compared to the native beta-glucosidase, is new. Sequences not defined here may be defined at ftp://ftp.wipo.int/pub/published_pct_sequences/publication.    USE - The beta-glucosidase variant, host cell, enzyme composition, and methods are useful for producing fermentable sugar; and for producing bioproduct, where the bioproduct is ethanol (all claimed), preferably bioethanol.    ADVANTAGE - The beta-glucosidase variants have improved and reduced transglycosylation activity that can optimize the hydrolysis step of cellulosic material to fermentable sugars.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are:    (1) an isolated nucleic acid sequence encoding the beta-glucosidase variant;    (2) a nucleic acid sequence complementary to the isolated nucleic acid sequence above;    (3) a gene construct comprising the nucleic acid sequence;    (4) a host cell comprising the gene construct;    (5) an enzymatic composition comprising the beta-glucosidase variant;    (6) a process for selecting beta-glucosidase variant with reduced transglycosylation activity compared to the native beta-glucosidase, comprising: (a) incubating beta-glucosidase variant comprising an amino acid sequence having a sequence identity of at least 80% to SEQ ID NO: 2 and comprising an amino acid substitution at one position corresponding to Gln211 at positions 1-871 of SEQ ID NO: 2, with p-nitrophenyl-glucopyranoside in the presence of cellobiose; (b) measuring the release of p-nitrophenol; (c) comparing the value of p-nitrophenol measured in step (b) with a reference value; and (d) selecting beta-glucosidase variants with measured values higher than the reference value;    (7) a process for producing the beta-glucosidase variant;    (8) a method for producing fermentable sugar comprising: (a) incubating cellulosic material with the beta-glucosidase variant, with the host cell, or with the enzyme composition; and (b) recovering the fermentable sugar obtained after incubation in step (a); and    (9) a process for producing a bioproduct comprising: (a) incubating cellulosic material with the beta-glucosidase variant, with the host cell or with the enzyme composition; (b) fermenting the fermentable sugars obtained after incubation in step (a) with at least a fermenting microorganism; and (c) recovering the bioproduct obtained after fermentation in step (b).