PPI1 — Pisum sativum

Summary

PSAT2G109560 (symbol PPI1, also known as PsOEP34 and PsTOC33) on chromosome 2LG1 encodes a P-loop NTPase domain-containing protein with multiple annotated molecular functions including GTPase activity, GTP binding, chloroplast targeting sequence receptor activity, protein translocase activity, voltage-gated monoatomic cation channel activity, and glycolipid binding. The gene is associated with chloroplast localization and protein import, particularly through the Toc and Tic complexes, as well as regulation of ion membrane transport, cellular response to cold, abscisic acid-mediated signaling, and the transition from vegetative to reproductive phase. Associations include traits such as chlorophyll content, photosynthetic ability, drought tolerance, disease tolerance, seed viability, flowering time, root morphology, and plant growth and development. Related genes in other species link the family to plastid development, plastid protein import, embryogenesis, and light stress tolerance.