AFB4 — Pisum sativum

Summary

AFB4 (PSAT2G067640) on garden pea chromosome 2LG1 encodes an F-box protein with auxin receptor activity, auxin binding, IP6 binding, ubiquitin-protein transferase activity, and DNA-binding transcription factor activity. It is associated with auxin signaling, transport, and response, as well as regulation of jasmonic acid-mediated signaling, defense response to insects, lateral root morphogenesis, stamen development, geotropism, and cellular response to phosphate starvation. The protein localizes to the SCF complex, ubiquitin ligase complex, cytoplasm, and nucleus. AFB4 is linked to numerous traits including auxin sensitivity, herbicide sensitivity, phototropism, root and seedling development, flowering time, seed growth, leaf morphology, and abiotic stress responses. Studies of related genes in other species connect the family to auxin perception, root development, and embryo viability.