Biology:Blood group B linear chain alpha-1,3-galactosidase

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Baicalin-beta-D-glucuronidase
Identifiers
EC number3.2.1.167
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

Baicalin-beta-D-glucuronidase (EC 3.2.1.167, baicalinase) is an enzyme with systematic name 5,6,7-trihydroxyflavone-7-O-beta-D-glucupyranosiduronate glucuronosylhydrolase.[1][2][3][4] This enzyme catalyses the following chemical reaction

baicalin + H2O [math]\displaystyle{ \rightleftharpoons }[/math] baicalein + D-glucuronate

The enzyme also hydrolyses wogonin 7-O-beta-D-glucuronide and oroxylin 7-O-beta-D-glucuronide with lower efficiency.

References

  1. "Purification and properties of a plant beta-D-glucuronidase form Scutellaria root". Biological & Pharmaceutical Bulletin 18 (11): 1531–4. November 1995. doi:10.1248/bpb.18.1531. PMID 8593473. 
  2. "Purification and characterization of baicalin-β-D-glucuronidase hydrolyzing baicalin to baicalein from fresh roots of Scutellaria viscidula Bge". Proc. Biochem. 40: 1911–1915. 2005. doi:10.1016/j.procbio.2004.07.003. 
  3. "Molecular characterization of a novel beta-glucuronidase from Scutellaria baicalensis georgi". The Journal of Biological Chemistry 275 (35): 27466–72. September 2000. doi:10.1074/jbc.m004674200. PMID 10858442. 
  4. "Purification and characterization of flavone-specific β-glucuronidase from callus cultures of Scutellaria baicalensis Georgi". Planta 195: 535–540. 1995. doi:10.1007/bf00195712. 

External links