PRR1 — Fusarium graminearum PH-1

Summary

FgPRR1 (PRR1) on chromosome 3 of Fusarium graminearum PH-1 encodes a phosphorelay response regulator with DNA-binding transcription activator activity, RNA polymerase II-specific, and transferase activity. The protein contains a signal transduction response regulator receiver domain and an HSF DNA-binding domain. FgPRR1 is associated with defense response, response to singlet oxygen and AOS, metabolic burst, regulation of the ER unfolded protein response, cellular thermotolerance, osmotic response, histidyl-aspartyl phosphorelay, cell size control, and upregulation of filamentous growth in response to starvation and biotic stimulus. It localizes to the nucleus, cytoplasm, chromatin, and RNA polymerase II transcription regulator complex. Phenotypic associations include thermotolerance, biofilm formation, flocculation, adhesion, mating efficiency, cell cycle progression, and carbon source utilization. Related genes in other species link it to oxidative stress response and pH response.