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Title 

cAMP-mediated catabolite repression and electrochemical potential-dependent production of an extracellular amylase in Vibrio alginolyticus

Authors 

Un Ok KimKyung Soo HahmYong Ha ParkYoung Jae Kim

Publisher 

Japan Society for Bioscience, Biotechnology and Agrochemistry

Issue Date 

1999

Citation 

Bioscience Biotechnology and Biochemistry, vol. 63, no. 2, pp. 288-292

Keywords 

Vibrio alginolyticusextracellular amylasecatabolite repressionproductionelectrochemical potential

Abstract 

Vibrio alginolyticus, a halophilic marine bacterium, produced an extracellular amylase with a molecular mass of approximately 56,000, and the amylase appeared to be subject to catabolite repression mediated by cAMP. The production of amylase at pH 6.5, at which the respiratory chain-linked H+ pump functions, was inhibited about 75% at 24 hours following the addition of 2μM carbonyl cyanide m-chlorophenylhydrazone (CCCP), while the production at pH 8.5, at which the respiratory chain-linked Na+ pump functions, was only slightly inhibited by the addition of 2μM CCCP. In contrast, the production of amylase in a mutant bacterium defective in the Na+ pump was almost completely inhibited even at pH 8.5 as well as pH 6.5 by the addition of 2 μM CCCP.

ISSN 

0916-8451

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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