Titre :

Substrate prediction of Ixodes ricinus salivary lipocalins differentially expressed during Borrelia afzelii infection

Auteur(s) :

Valdes, James J. [Auteur]
Cabezas Cruz, Alejandro [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Biologie moléculaire et immunologie parasitaires et fongiques [BIPAR]
Sima, Radek [Auteur]
Butterill, Philip T. [Auteur]
Czech Academy of Sciences [Prague] [CAS]
Růžek, Daniel [Auteur]
Czech Academy of Sciences [Prague] [CAS]
Nuttall, Patricia A. [Auteur]

Titre de la revue :

Scientific Reports

Éditeur :

Nature Publishing Group

Date de publication :

2016

ISSN :

2045-2322

Discipline(s) HAL :

Sciences du Vivant [q-bio]

Résumé en anglais : [en]

Evolution has provided ticks with an arsenal of bioactive saliva molecules that counteract host defense mechanisms. This salivary pharmacopoeia enables blood-feeding while enabling pathogen transmission. High-throughput ...
Lire la suite >Evolution has provided ticks with an arsenal of bioactive saliva molecules that counteract host defense mechanisms. This salivary pharmacopoeia enables blood-feeding while enabling pathogen transmission. High-throughput sequencing of tick salivary glands has thus become a major focus, revealing large expansion within protein encoding gene families. Among these are lipocalins, ubiquitous barrel-shaped proteins that sequester small, typically hydrophobic molecules. This study was initiated by mining the Ixodes ricinus salivary gland transcriptome for specific, uncharacterized lipocalins: three were identified. Differential expression of these I. ricinus lipocalins during feeding at distinct developmental stages and in response to Borrelia afzelii infection suggests a role in transmission of this Lyme disease spirochete. A phylogenetic analysis using 803 sequences places the three I. ricinus lipocalins with tick lipocalins that sequester monoamines, leukotrienes and fatty acids. Both structural analysis and biophysical simulations generated robust predictions showing these I. ricinus lipocalins have the potential to bind monoamines similar to other tick species previously reported. The multidisciplinary approach employed in this study characterized unique lipocalins that play a role in tick blood-feeding and transmission of the most important tick-borne pathogen in North America and Eurasia.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Projet Européen :

USE OF MODEL ORGANISMS TO RESOLVE CRUCIAL BIOLOGICAL PROBLEMS ON THE PATH TO INNOVATIONS

Collections :

• Centre d'Infection et d'Immunité de Lille (CIIL) - U1019 - UMR 9017

Source :

Harvested from HAL