PP1 — Triticum turgidum subsp. durum

Summary

TRITD1BV1G051590, designated TtPP1, encodes a protein serine/threonine phosphatase catalytic subunit belonging to the PP1 family on durum wheat chromosome 1B. The product exhibits protein serine/threonine phosphatase activity and is associated with protein phosphatase inhibitor activity, auxin efflux transmembrane transporter activity, and transcription coactivator activity. TtPP1 is linked to diverse biological processes including auxin export, regulation of epidermal cell division, leaf shaping, trichome differentiation, root hair tip growth, gibberellic acid homeostasis, and cellular responses to abscisic acid and chitin. The protein localizes to the protein phosphatase type 1 complex, basal plasma membrane, vacuole, nucleolus, and plasmodesmata. TtPP1 is associated with traits such as bacterial blight disease resistance, seed set percent, temperature stress response, plant male sterility, aluminum response, shoot axis branching, and leaf morphology traits including margin serration and vein patterning.