Skip to main content

Advertisement

Log in

Diversity of sugar acceptor of glycosyltransferase 1 from Bacillus cereus and its application for glucoside synthesis

  • Biotechnologically relevant enzymes and proteins
  • Published:
Applied Microbiology and Biotechnology Aims and scope Submit manuscript

Abstract

Glycosyltransferase 1 from Bacillus cereus (BcGT1) catalyzes the transfer of a glucosyl moiety from uridine diphosphate glucose (UDP-glucose) to various acceptors; it was expressed and characterized. The specificity of acceptors was found to be broad: more than 20 compounds classified into O-, S-, and N-linkage glucosides can be prepared with BcGT1 catalysis. Based on this work, we conclude that the corresponding acceptors of these compounds must possess the following features: (1) the acceptors must contain at least one aromatic or fused-aromatic or heteroaromatic ring; (2) the reactive hydroxyl or sulfhydryl or amino group can attach either on the aromatic ring or on its aliphatic side chain; and (3) the acceptors can be a primary, secondary, or even a tertiary amine. Four representative acceptors—fluorescein methyl ester, 17-β-estradiol, 7-mercapto-4-methylcoumarin, and 6-benzylaminopurine—were chosen as a candidate acceptor for O-, S-, and N-glucosidation, respectively. These enzymatic products were purified and the structures were confirmed with mass and NMR spectra. As all isolated glucosides are β-anomers, BcGT1 is confirmed to be an inverting enzyme. This study not only demonstrates the substrate promiscuity of BcGT1 but also showed the great application prospect of this enzyme in bioconversion of valuable bioactive molecules.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

Download references

Acknowledgments

We thank Ms. Chia-Yu Lu, Ms. Ko-Jen Su for enzyme preparation, Dr. Hsing-Pang Hsieh (National Health Research Institutes, Taiwan) for providing BPR2P0064S0, Mr. Chang-Lin Yang for isolating 7-mercapto-4-methylcoumarin 7-S-glucoside, Dr. Kuang-Po Chen, Ms. Chloe Chang and Dr. Li-Ching Shen for the NMR analysis, Ms. Yun-Ming Li (Mass Laboratory, Center for Advanced Instrumentation at National Chiao Tung University, Taiwan) for mass analysis, and Dr. Yu-Kuo Wang (Department of Biological Science and Technology, National Chiao Tung University, Taiwan) for MALDI-TOF-MS peptide-mapping analysis.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Yaw-Kuen Li.

Ethics declarations

Funding

This study was funded by the Ministry of Science and Technology in Taiwan (101-2113-M-009-012-MY3).

Conflict of interest

The authors declare that they have no competing interests.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Electronic supplementary material

ESM 1

(PDF 1.67 mb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chiu, HH., Shen, MY., Liu, YT. et al. Diversity of sugar acceptor of glycosyltransferase 1 from Bacillus cereus and its application for glucoside synthesis. Appl Microbiol Biotechnol 100, 4459–4471 (2016). https://doi.org/10.1007/s00253-015-7270-1

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00253-015-7270-1

Keywords

Navigation