PRR1 — Verticillium dahliae

Summary

VdPRR1 (VDAG_02250) on chromosome DS572697 of Verticillium dahliae 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-type DNA-binding domain. VdPRR1 is associated with the regulation of transcription by RNA polymerase II, histidyl-aspartyl phosphorelay, and responses to singlet oxygen, oxidative stress, and starvation. It is linked to filamentous growth, cell size control, and hypersensitivity. The gene product localizes to the nucleus, cytosol, and chromatin. VdPRR1 is associated with vascular wilt. Studies of related genes in other species link the family to oxidative stress resistance, cell cycle progression, and flocculation.