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TitleThe Mechanism of Substrate (Aglycone) Specificity in Beta -Glucosidases is Revealed by Crystal Structures of Mutant Maize Beta -Glucosidase-Dimboa, -Dimboaglc, and -Dhurrin Complexes
Journal, issue, pagesProc. Natl. Acad. Sci. USA, Vol. 97, Page 13555-, Year 2000
Publish dateJul 10, 2000 (structure data deposition date)
AuthorsCzjzek, M. / Cicek, M. / Zamboni, V. / Bevan, D.R. / Henrissat, B. / Esen, A.
External linksProc. Natl. Acad. Sci. USA / PubMed:11106394
MethodsX-ray diffraction
Resolution2 - 2.2 Å
Structure data

PDB-1e4l:
Crystal structure of the inactive mutant Monocot (Maize ZMGlu1) beta-glucosidase ZM Glu191Asp
Method: X-RAY DIFFRACTION / Resolution: 2.2 Å

PDB-1e4n:
Crystal structure of the inactive mutant Monocot (Maize ZMGlu1) beta-glucosidase ZMGluE191D in complex with the natural aglycone DIMBOA
Method: X-RAY DIFFRACTION / Resolution: 2.1 Å

PDB-1e55:
Crystal structure of the inactive mutant Monocot (Maize ZMGlu1) beta-glucosidase ZMGluE191D in complex with the competitive inhibitor dhurrin
Method: X-RAY DIFFRACTION / Resolution: 2 Å

PDB-1e56:
Crystal structure of the inactive mutant Monocot (Maize ZMGlu1) beta-glucosidase ZMGluE191D in complex with the natural substrate DIMBOA-beta-D-glucoside
Method: X-RAY DIFFRACTION / Resolution: 2.1 Å

Chemicals

ChemComp-GOL:
GLYCEROL / Glycerol

ChemComp-HOH:
WATER / Water

ChemComp-HBO:
2,4-DIHYDROXY-7-(METHYLOXY)-2H-1,4-BENZOXAZIN-3(4H)-ONE

ChemComp-BGC:
beta-D-glucopyranose / Glucose

ChemComp-DHR:
(2S)-HYDROXY(4-HYDROXYPHENYL)ETHANENITRILE

Source
  • zea mays (maize)
KeywordsHYDROLASE / GLYCOSIDE HYDROLASE / FAMILY 1 / RETENTION OF THE ANOMERIC CONFIGURATION / INACTIVE MUTANT E191D / BETA-GLUCOSIDASE / HYDROLASE COMPLEX WITH DIMBOA / COMPLEX WITH DHURRIN / COMPLEX WITH DIMBOA-GLUCOSIDE

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