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Detection of Zymogenic ChsC Activity in Vegetative Hyphae of Aspergillus nidulans.  

박범찬 (충남대학교 생명과학부 미생물학전공)
박윤희 (충남대학교 생명과학부 미생물학전)
박희문 (충남대학교 생명과학부 미생물학전공)
Publication Information
Korean Journal of Microbiology / v.40, no.2, 2004 , pp. 178-182 More about this Journal
Abstract
In the vegetative hyphae of Aspergillus nidulans, a zymogenic form of the class I chitin synthase activity was successfully measured by the assay condition for Saccharomyces cerevisiae class I chitin synthase, Chsl. The class I chitin synthase activity of the A. nidulans chsC wild type strain was increased about six-fold by trypsin-pretreatment, but that of the chsC disruption strain revealed no increase. Interestingly enough, level of the class I chitin synthase activity of the chsC disruption strain was almost the same as that of the chsC wild type without trypsin-pretreatment. These results indicated that the A. nidulans ChsC activity could be measured by account-ing the class I chitin synthase activity without the trypsin-pretreatment as an internal control. Consistence to the expression pattern of the chsC revealed by northern blot analysis, the activity of ChsC was increased upon reaching the culture time for acquiring developmental competence. Our results shown here also supported the previous report suggesting the possible involvement of ChsC in vegetative hyphal growth of A. nidulans.
Keywords
A. nidulans; ChsC; class I chitin synthase; vegetative hyphae; zymogen;
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Times Cited By KSCI : 1  (Citation Analysis)
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