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primary topic: Cellulophaga algicola alginate lyase inhibits biofilm formation of a clinical Pseudomonas aeruginosa strain MCC 2081

Cellulophaga algicola alginate lyase inhibits biofilm formation of a clinical Pseudomonas aeruginosa strain MCC 2081
type: AcademicArticle
type: Article
abstract: Alginate lyases are potential agents for disrupting alginate-rich Pseudomonas biofilms in the infected lungs of cystic fibrosis patients but there is as yet no clinically approved alginate lyase that can be used as a therapeutic. We report here the endolytic alginate lyase activity of a recombinant Cellulophaga algicola alginate lyase domain (CaAly) encoded by a gene that also codes for an N-terminal carbohydrate-binding module, CBM6, and a central F-type lectin domain (CaFLD). CaAly degraded both polyM and polyG alginates with optimal temperature and pH of 37 degrees C and pH 7, respectively, with greater preference for polyG. Recombinant CaFLD bound to fucosylated glycans with a preference for H-type 2 glycan motif, and did not have any apparent effect on the enzyme activity of the co-associated alginate lyase domain in the recombinant protein construct, CaFLD_Aly. We assessed the potential of CaAly and other alginate lyases previously reported in published literature to inhibit biofilm formation by a clinical strain, Pseudomonas aeruginosa MCC 2081. Of all the alginate lyases tested, CaAly displayed most inhibition of in vitro biofilm formation on plastic surfaces. We also assessed its inhibitory ability against P. aeruginosa 2081 biofilms formed over a monolayer of A549 lung epithelial cells. Our study indicated that CaAly is efficacious in inhibition of biofilm formation even on A549 lung epithelial cell line monolayers.
date: 2021-02-01
volume: 73
issue: 2
is part of: IUBMB life
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository
subject: QR Microbiology

Wiley
type: Organization

IUBMB life
type: Collection
issn: 15216551

T N C Ramya
type: Person
given name: T N C
family name: Ramya

Sonal Mahajan
type: Person
given name: Sonal
family name: Mahajan

HTML Summary of #2654 Cellulophaga algicola alginate lyase inhibits biofilm formation of a clinical Pseudomonas aeruginosa strain MCC 2081
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primary topic: Cellulophaga algicola alginate lyase inhibits biofilm formation of a clinical Pseudomonas aeruginosa strain MCC 2081

QR Microbiology
type: Concept