Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Hansenula Polymorpha 알코올 산화효소의 기질특이성 및 안정성 분석Analysis on the Substrate Speciticity and Stability of Hansenula Polymorpha Alcohol Oxidase

Authors
제갈향조현영김은호공광훈
Issue Date
Feb-2004
Publisher
한국분석과학회
Keywords
alcohol oxidase; Hansenula polymorpha; inducible expression; substrate specificity; stability
Citation
분석과학, v.17, no.1, pp 37 - 44
Pages
8
Journal Title
분석과학
Volume
17
Number
1
Start Page
37
End Page
44
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/29882
ISSN
1225-0163
2288-8985
Abstract
효모 Hansenula polymorpha 로부터 탄소원으로 0.5% 메탄올을 이용하여 알코올 산화효소를 대량 유도 발현하였다. 발현 유도된 Hansenula polymorpha 알코올 산화효소는 두 단계의 컬럼 크로마토그래피를 통하여 전기영동에서 단일밴드로 정제하였다. 정제한 효소는 주로 일차 지방족 알코올을 산화시키며, 에탄올에 대해 가장 높은 기질특이성을 보였다. 이 효소가 촉매하는 에탄올 산화반응의 최적 pH는 8.5 이였으며, 최적 온도는 50 ℃를 나타내었다. 효소의 Tm 값은 약 52 ℃ 이었으며, 65 ℃에서도 완전히 불활성화 되지 않았다. 또한 효소는 변성제와 7주간의 비교적 장기간 보전에 대해서도 안정하였다. 이 효소는 알코올 측정을 위한 효소학적 방법 및 알코올과 알데히드의 공업적 생산에 이용될 수 있다.
An alcohol oxidase from Hansenula polymorpha was strongly induced when cells were grown with 0.5% methanol supplementation as the carbon source. The induced Hansenula polymorpha alcohol oxidase was purified to electrophoretic homogeneity by using DEAE-Sephacel and Mono Q column chromatographys. The enzyme oxidized mainly primary aliphatic alcohols and exhibited high substrate specificity towards ethanol and methanol. The activity of the enzyme optimally proceeded at pH 8.5 and 50℃. The midpoint of the temperature-stability curve for the enzyme was approximately 52℃ and the enzyme was not completely inactivated even at 65℃ temperature. The enzyme showed resistance toward detergents and highly stable over 7 weeks of storage condition. This Hansenula polymorpha alcohol oxidase may be useful for the enzymatic determination of alcohol and for the industrial production of alcohols and aldehydes.
Files in This Item
Go to Link
Appears in
Collections
College of Natural Sciences > Department of Chemistry > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Kong, Kwang-Hoon photo

Kong, Kwang-Hoon
자연과학대학 (화학과)
Read more

Altmetrics

Total Views & Downloads

BROWSE