Document Detail


Regulation of the feruloyl esterase (faeA) gene from Aspergillus niger.
MedLine Citation:
PMID:  10584009     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Feruloyl esterases can remove aromatic residues (e.g., ferulic acid) from plant cell wall polysaccharides (xylan, pectin) and are essential for complete degradation of these polysaccharides. Expression of the feruloyl esterase-encoding gene (faeA) from Aspergillus niger depends on D-xylose (expression is mediated by XlnR, the xylanolytic transcriptional activator) and on a second system that responds to aromatic compounds with a defined ring structure, such as ferulic acid and vanillic acid. Several compounds were tested, and all of the inducing compounds contained a benzene ring which had a methoxy group at C-3 and a hydroxy group at C-4 but was not substituted at C-5. Various aliphatic groups occurred at C-1. faeA expression in the presence of xylose or ferulic acid was repressed by glucose. faeA expression in the presence of ferulic acid and xylose was greater than faeA expression in the presence of either compound alone. The various inducing systems allow A. niger to produce feruloyl esterase not only during growth on xylan but also during growth on other ferulic acid-containing cell wall polysaccharides, such as pectin.
Authors:
R P de Vries; J Visser
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Applied and environmental microbiology     Volume:  65     ISSN:  0099-2240     ISO Abbreviation:  Appl. Environ. Microbiol.     Publication Date:  1999 Dec 
Date Detail:
Created Date:  2000-01-27     Completed Date:  2000-01-27     Revised Date:  2013-04-17    
Medline Journal Info:
Nlm Unique ID:  7605801     Medline TA:  Appl Environ Microbiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  5500-3     Citation Subset:  IM    
Affiliation:
Molecular Genetics of Industrial Micro-organisms, Wageningen Agricultural University, NL-6703 HA Wageningen, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Aspergillus niger / enzymology*,  genetics*
Carboxylic Ester Hydrolases / biosynthesis,  genetics*
Enzyme Induction
Enzyme Repression
Fungal Proteins / genetics,  metabolism
Gene Expression Regulation, Fungal* / drug effects,  radiation effects
Mutagenesis
Mutagens / pharmacology
Promoter Regions, Genetic
Repressor Proteins / genetics,  metabolism
Trans-Activators / genetics,  metabolism
Ultraviolet Rays
Chemical
Reg. No./Substance:
0/Fungal Proteins; 0/Mutagens; 0/Repressor Proteins; 0/Trans-Activators; 0/XlnR protein, Aspergillus; 144516-87-0/CreA protein, Aspergillus nidulans; EC 3.1.1.-/Carboxylic Ester Hydrolases; EC 3.1.1.73/feruloyl esterase
Comments/Corrections

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