Saccharomyces cerevisiae chitin biosynthesis activation by N-acetylchitooses depends on size and structure of chito-oligosaccharides.

Abstract : ABSTRACT: BACKGROUND: To explore chitin synthesis initiation, the effect of addition of exogenous oligosaccharides on in vitro chitin synthesis was studied. Oligosaccharides of various natures and lengths were added to a chitin synthase assay performed on a Saccharomyces cerevisiae membrane fraction. FINDINGS: N-acetylchito-tetra, -penta and -octaoses resulted in 11 to 25 % [14C]-GlcNAc incorporation into [14C]-chitin, corresponding to an increase in the initial velocity. The activation appeared specific to N-acetylchitooses as it was not observed with oligosaccharides in other series, such as beta-(1,4), beta-(1,3) or alpha-(1,6) glucooligosaccharides. CONCLUSIONS: The effect induced by the N-acetylchitooses was a saturable phenomenon and did not interfere with free GlcNAc and trypsin which are two known activators of yeast chitin synthase activity in vitro. The magnitude of the activation was dependent on both oligosaccharide concentration and oligosaccharide size.
Document type :
Journal articles
Complete list of metadatas

Cited literature [26 references]  Display  Hide  Download

https://www.hal.inserm.fr/inserm-00642455
Contributor : Ed. Bmc <>
Submitted on : Friday, November 18, 2011 - 7:08:49 AM
Last modification on : Thursday, February 7, 2019 - 3:46:57 PM
Long-term archiving on : Friday, November 16, 2012 - 11:25:24 AM

Files

Identifiers

Citation

Hubert Becker, Annie Piffeteau, Annie Thellend. Saccharomyces cerevisiae chitin biosynthesis activation by N-acetylchitooses depends on size and structure of chito-oligosaccharides.. BMC Research Notes, BioMed Central, 2011, 4 (1), pp.454. ⟨10.1186/1756-0500-4-454⟩. ⟨inserm-00642455⟩

Share

Metrics

Record views

539

Files downloads

192