Fluorescence study on ligand induced conformational changes of human erythrocyte glucose transporter

W. S. Xie, J. C. Yue, Yaping Tu

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Abstract

The nanosecond time-resolved fluorescence and fluorescence lifetime quenching have been used to detect the conformational changes of human erythrocyte glucose transporter induced by its ligands. Results show that D-glucose can decrease the fluorescence lifetimes, while L-glucose exhibits no effect. The fluorescence lifetime quenching results also show that in the presence of D-glucose, the quenching efficiency of hypocrellin B (a hydrophobic quencher obtained from a parasitic fungus, growing in Yunnan, China) is lower than in the presence of L-glucose. It can be deduced that the conformational changes of human erythrocyte glucose transporter induced by D-glucose are different from those induced by L-glucose.

Original languageEnglish
Pages (from-to)279-284
Number of pages6
JournalBiochemistry and Molecular Biology International
Volume39
Issue number2
Publication statusPublished - 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Genetics
  • Molecular Biology

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