Open Access. Powered by Scholars. Published by Universities.®
Biochemistry, Biophysics, and Structural Biology
Articles 1 - 1 of 1
Full-Text Articles in Entire DC Network
Phosphorylation Of Calcineurin At A Novel Serine-Proline Rich Region Orchestrates Hyphal Growth And Virulence In Aspergillus Fumigatus, Praveen R. Juvvadi, Christopher Gehrke, Jarrod R. Fortwendel, Frédéric Lamoth, Erik J. Soderblom, Erik C. Cook, Michael A. Hast, Yohannes G. Asfaw, M. Arthur Moseley, Trevor P. Creamer, William J. Steinbach
Phosphorylation Of Calcineurin At A Novel Serine-Proline Rich Region Orchestrates Hyphal Growth And Virulence In Aspergillus Fumigatus, Praveen R. Juvvadi, Christopher Gehrke, Jarrod R. Fortwendel, Frédéric Lamoth, Erik J. Soderblom, Erik C. Cook, Michael A. Hast, Yohannes G. Asfaw, M. Arthur Moseley, Trevor P. Creamer, William J. Steinbach
Molecular and Cellular Biochemistry Faculty Publications
The fungus Aspergillus fumigatus is a leading infectious killer in immunocompromised patients. Calcineurin, a calmodulin (CaM)-dependent protein phosphatase comprised of calcineurin A (CnaA) and calcineurin B (CnaB) subunits, localizes at the hyphal tips and septa to direct A. fumigatus invasion and virulence. Here we identified a novel serine-proline rich region (SPRR) located between two conserved CnaA domains, the CnaB-binding helix and the CaM-binding domain, that is evolutionarily conserved and unique to filamentous fungi and also completely absent in human calcineurin. Phosphopeptide enrichment and tandem mass spectrometry revealed the phosphorylation of A. fumigatus CnaA in vivo at four clustered serine residues …