TIC22 — Pisum sativum

Summary

PSAT7G076520, designated PsTIC22-III on chromosome 7LG7 of garden pea (Pisum sativum), encodes a Tic22-like protein that localises to the chloroplast envelope and inner membrane, where it is a component of the TIC complex and TOC-TIC supercomplex. The gene product is associated with protein binding and molecular function, and is linked to chloroplast stroma protein import, protein transport, and chloroplast organisation. Annotated associations link PsTIC22-III to plastid and chloroplast development, seed viability, and phenotypes including reduced cotyledon greening in an ABA-dependent manner, small dark-green rosettes with early flowering and short stature, and embryo lethality with chlorotic phenotype. Related genes in other species connect the family to chloroplast development and protein import, while sequence similarity links extend to traits such as chlorophyll content and photochemical quenching.