NCBI Accession #
NP_176801.1
NCBI GenBank Nucleotide #
NM_105298.4
NCBI Official Full Name
Glycosyl hydrolase superfamily protein
NCBI Official Symbol
BGLU21
NCBI Official Synonym Symbols
T6J19.2
NCBI Protein Information
Glycosyl hydrolase superfamily protein
NCBI Summary
BGLU21 encodes a beta-glucosidase that has a high level of activity against the naturally occuring secondary metabolite scopolin. Recombinant BGLU21 produced in insect cells shows lower levels of activity using the structurally similar substrates esculin (33%) and 4-MU-glucoside (9%). BGLU21 is glycosylated in planta and has a C-terminal ER retention signal. Transcript analysis as well as protein extraction and western blotting from various plant organs suggest that BGLU21 is only present in roots and seedlings. Transcript levels increase in response to cold, auxin (2,4-D), and methyl jasmonate treatments.
UniProt Synonym Gene Names
PSR3.2; AtBGLU21
UniProt Protein Name
Beta-glucosidase 21
UniProt Synonym Protein Names
Protein PHOSPHATE STARVATION-RESPONSE 3.2
UniProt Primary Accession #
Q9C525
UniProt Secondary Accession #
O23656; Q3ECH6
UniProt Related Accession #
Q9C525
UniProt Comments
Beta-D-glucosidase active on scopolin >> esculin >> 4-MU-glucoside > DIMBOA-glucoside. No activity with pNP-glucoside, oNP-glucoside and sinigrin as substrates.