Purification of an acidic coniferin-hydrolysing beta-glucosidase from developing xylem of Pinus banksiana

Phytochemistry. 1994 Sep;37(2):311-5. doi: 10.1016/0031-9422(94)85053-4.

Abstract

Two cytosolic, acidic (pI 3.8) glycoproteins (M(r) 110,000 and 90,000) from lignifying xylem of Pinus banksiana were electrophoretically isolated and confirmed by combined gas chromatography-mass spectrometry to be capable of hydrolysing E-coniferin to trans-coniferyl alcohol. These isoenzymes yielded identical N-terminal sequences having negligible homology with documented glucosidases, suggesting that they constitute a novel form of beta-glucosidase.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Chromatography, Ion Exchange
  • Cinnamates / metabolism*
  • Hydrolysis
  • Isoelectric Focusing
  • Molecular Sequence Data
  • Trees / enzymology*
  • Trees / growth & development
  • beta-Glucosidase / isolation & purification*
  • beta-Glucosidase / metabolism

Substances

  • Cinnamates
  • beta-Glucosidase
  • coniferin