Title

The search for cryptic L-Rhamnosyltransferases on the Sporothrix schenckii genome

Author

Hector M. Mora-Montes

Karina García-Gutiérrez

Laura Cristina García Carnero

Nancy Lozoya-Perez

Jorge Humberto Ramírez Prado

Access level

Open Access

License

http://creativecommons.org/licenses/by-nc-nd/4.0

Dataset reference

datasetDOI/https://doi.org/10.3390/jof8050529

Subjects

FUNGAL CELL-WALL - (AUTORES) GLYCANS - (AUTORES) RHAMNOCONJUGATES - (AUTORES) RHAMNOSYLTRANSFERASE - (AUTORES) BIOLOGÍA Y QUÍMICA - (CTI) CIENCIAS DE LA VIDA - (CTI) BIOLOGÍA VEGETAL (BOTÁNICA) - (CTI) ECOLOGÍA VEGETAL - (CTI) ECOLOGÍA VEGETAL - (CTI)

Summary or description

The fungal cell wall is an attractive structure to look for new antifungal drug targets and for understanding the host-fungus interaction. Sporothrix schenckii is one of the main causative agents of both human and animal sporotrichosis and currently is the species most studied of the Sporothrix genus. The cell wall of this organism has been previously analyzed, and rhamnoconjugates are signature molecules found on the surface of both mycelia and yeast-like cells. Similar to other reactions where sugars are covalently linked to other sugars, lipids, or proteins, the rhamnosylation process in this organism is expected to involve glycosyltransferases with the ability to transfer rhamnose from a sugar donor to the acceptor molecule, i.e., rhamnosyltransferases. However, no obvious rhamnosyltransferase has thus far been identified within the S. schenckii proteome or genome. Here, using a Hidden Markov Model profile strategy, we found within the S. schenckii genome five putative genes encoding for rhamnosyltransferases. Expression analyses indicated that only two of them, named RHT1 and RHT2, were significantly expressed in yeast-like cells and during interaction with the host. These two genes were heterologously expressed in Escherichia coli, and the purified recombinant proteins showed rhamnosyltransferase activity, dependent on the presence of UDP-rhamnose as a sugar donor. To the best of our knowledge, this is the first report about rhamnosyltransferases in S. schenckii. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Publish date

2022

Publication type

Article

Publication version

Published Version

Information Resource

http://cicy.repositorioinstitucional.mx/jspui/handle/1003/2854

Format

application/pdf

Source

Journal of Fungi, 8(5), 529, 2022.

Language

English

Citation suggestion

Mora-Montes, H.M.; García-Gutiérrez, K.; García-Carnero, L.C.; Lozoya-Pérez, N.E.; Ramirez-Prado, J.H. The search for cryptic L-Rhamnosyltransferases on the Sporothrix schenckii genome. J. Fungi 2022, 8, 529. https://doi.org/10.3390/jof8050529

Source repository

Repositorio Institucional CICY

Downloads

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