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author:

Chen, L. (Chen, L..) [1] | Chen, J. (Chen, J..) [2] | Lin, X. (Lin, X..) [3] | Cai, H. (Cai, H..) [5]

Indexed by:

Scopus PKU CSCD

Abstract:

To achieve high-level expression or cyclodextrin glycosyltranslerase from Gebacillius sp. CHBl in methylotrophic yeast Pichia pastoris GS115, the DNA sequence (CGTl) encoding 680 aminno acids was amplified. The CGT2 was synthesized based on the codon preference of Pichia pastoris. Then CGTl and CGT2 were respectively fused to the pPICZaA and expressed in Pichia pastoris. Two strains (GSl 15/pPICZaA-CGTl and GS115/pPICZaA-CGT2) were abtained. After methanol induction for 120 h in a shake fiask, the enzyme activity of CGT2 reached 0.62 U/mL, 1.7 times higher than CGTl (0.37 U/mL). Shake fiask experiments were conducted to optimize the fermentation conditions. Higliest enzyme activity acliieved to 1.26 U/mL by induction for 120 h under the optimal conditions.(pH 6.5, 28°C, 200 r/min, inoculation amount of 1.5% methanol), two times higher than before. © Editorial office of Journal of Food Science and Biotechnology. All rights reserved.

Keyword:

Codon qptimization; Cyclodextrin glycosyltransferase; Gebacillius sp.CHBl; Pichia pastom

Community:

  • [ 1 ] [Chen, L.]Soil and Fertilizer Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
  • [ 2 ] [Chen, J.]Soil and Fertilizer Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
  • [ 3 ] [Lin, X.]Soil and Fertilizer Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
  • [ 4 ] [Lin, X.]College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Lin, X.]Soil and Fertilizer Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
  • [ 6 ] [Lin, X.]College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Cai, H.]Soil and Fertilizer Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China

Reprint 's Address:

  • [Cai, H.]Soil and Fertilizer Institute, Fujian Academy of Agricultural SciencesChina

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Source :

Journal of Food Science and Biotechnology

ISSN: 1673-1689

Year: 2018

Issue: 9

Volume: 37

Page: 994-999

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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