Document Detail

The pectic enzymes of Aspergillus niger. A mercury-activated exopolygalacturonase.
MedLine Citation:
PMID:  5964957     Owner:  NLM     Status:  MEDLINE    
1. An exopolygalacturonase was separated from a mycelial extract of Aspergillus niger with a 290-fold purification and a recovery of 8.6%. 2. The enzyme displayed its full activity only in the presence of Hg(2+) ions; K(A) for mercuric chloride was about 6x10(-8)m. 3. The mercury-activated enzyme progressively removed the terminal galacturonic acid residues from alpha-(1-->4)-linked galacturonide chains and converted digalacturonic acid, trigalacturonic acid, tetragalacturonic acid and pectic acid into galacturonic acid.
P J Mill
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Biochemical journal     Volume:  99     ISSN:  0264-6021     ISO Abbreviation:  Biochem. J.     Publication Date:  1966 Jun 
Date Detail:
Created Date:  1967-07-02     Completed Date:  1967-07-02     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  2984726R     Medline TA:  Biochem J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  557-61     Citation Subset:  IM    
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MeSH Terms
Aspergillus / enzymology*
Chemical Phenomena
Chromatography, Paper
Glycoside Hydrolases*
Hydrogen-Ion Concentration
Reg. No./Substance:
7439-97-6/Mercury; EC 3.2.1.-/Glycoside Hydrolases

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