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author:

Li, Ren-Kuan (Li, Ren-Kuan.) [1] | Fu, Cai-Li (Fu, Cai-Li.) [2] | Chen, Ping (Chen, Ping.) [3] | Ng, Tzi Bun (Ng, Tzi Bun.) [4] | Ye, Xiu-Yun (Ye, Xiu-Yun.) [5] (Scholars:叶秀云)

Indexed by:

Scopus SCIE

Abstract:

Production of a sika deer Cu/Zn-SOD was achieved in Pichia pastoris after the reconstituted expression vector pPIC9K was transformed into the strain GS115. By employing Saccharomyces cerevisiae secretion signal peptide (a-factor) under the regulation of the methanol-inducible prornoter of the gene of alcohol oxidase 1 (AOX1), sika deer Cu/Zn-SOD with a molecular mass of 16 kDa was expressed while recombinant sika deer Cu/Zn-SOD with an activity of 3500 U/mL was obtained from a 5 L bioreactor. After two successive steps of chromatography on DEAE-650 C and Superdex75, recombinant sika deer Cu/Zn-SOD was obtained with 13.8% yield, 14.5-fold purification, and a specific activity of 3447 U/mg. Its optimum temperature and optimum pH were 40 degrees C and 7.0, respectively. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.

Keyword:

Expression Pichia pastoris Purification Sika deer Superoxide dismutase

Community:

  • [ 1 ] [Li, Ren-Kuan]Fuzhou Univ, Coll Biol Sci & Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Fu, Cai-Li]Fuzhou Univ, Coll Biol Sci & Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Ye, Xiu-Yun]Fuzhou Univ, Coll Biol Sci & Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Ng, Tzi Bun]Chinese Univ Hong Kong, Fac Med, Sch Biomed Sci, Shatin, Hong Kong, Peoples R China

Reprint 's Address:

  • 叶秀云

    [Ye, Xiu-Yun]Fuzhou Univ, Coll Biol Sci & Technol, Qi Shan Campus,2 Xue Yuan Rd, Fuzhou 350108, Fujian, Peoples R China

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Source :

ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY

ISSN: 1382-6689

Year: 2013

Issue: 2

Volume: 35

Page: 185-192

1 . 8 6 2

JCR@2013

4 . 2 0 0

JCR@2023

ESI Discipline: PHARMACOLOGY & TOXICOLOGY;

JCR Journal Grade:2

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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