Mapping of Adenovirus of serotype 3 fibre interaction to desmoglein 2 revealed a novel 'non-classical' mechanism of viral receptor engagement

High-affinity binding of the trimeric fibre protein to a cell surface primary receptor is a common feature shared by all adenovirus serotypes. Recently, a long elusive species B adenovirus receptor has been identified. Desmoglein 2 (DSG2) a component of desmosomal junction, has been reported to interact at high affinity with Human adenoviruses HAd3, HAd7, HAd11 and HAd14. Little is known with respect to the molecular interactions of adenovirus fibre with the DSG2 ectodomain. By using different DSG2 ectodomain constructs and biochemical and biophysical experiments, we report that the third extracellular cadherin domain (EC3) of DSG2 is critical for HAd3 fibre binding. Unexpectedly, stoichiometry studies using multi-angle laser light scattering (MALLS) and analytical ultra-centrifugation (AUC) revealed a non-classical 1:1 interaction (one DSG2 per trimeric fibre), thus differentiating 'DSG2-interacting' adenoviruses from other protein receptor interacting adenoviruses in their infection strategy.

Medienart:

E-Artikel

Erscheinungsjahr:

2018

Erschienen:

2018

Enthalten in:

Zur Gesamtaufnahme - volume:8

Enthalten in:

Scientific reports - 8(2018), 1 vom: 30. Mai, Seite 8381

Sprache:

Englisch

Beteiligte Personen:

Vassal-Stermann, Emilie [VerfasserIn]
Mottet, Manon [VerfasserIn]
Ducournau, Corinne [VerfasserIn]
Iseni, Frédéric [VerfasserIn]
Vragniau, Charles [VerfasserIn]
Wang, Hongjie [VerfasserIn]
Zubieta, Chloe [VerfasserIn]
Lieber, André [VerfasserIn]
Fender, Pascal [VerfasserIn]

Links:

Volltext

Themen:

Desmoglein 2
Journal Article
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 07.10.2019

Date Revised 07.10.2019

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-018-26871-x

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM28494369X