ABF1 — Glycine max

Summary

GmABF1 (GLYMA_02G131700V4) on soybean chromosome 2 encodes a bZIP protein of the BZIP46-like family with calcium-dependent PKC activity, Ca2+/CaM-dependent kinase activity, calcium-dependent protein serine/threonine kinase activity, phosphatase activity, protein phosphatase activity, cis-regulatory region sequence-specific DNA binding, protein kinase binding, transcription coactivator activity, protein serine/threonine phosphatase activity, protein phosphorylated amino acid binding, kinase binding, calcium ion binding, and ubiquitin-protein transferase activity. In soybean, GmABF1 is associated with alanine anabolism, unsaturated fatty acid anabolism, proline metabolism, upregulation of chlorophyll breakdown, glucose mediated signalling, response to hormone, response to water, regulation of stomatal opening, regulation of pollen tube growth, and endosomal transport. It localises to the nuclear envelope, plastid, mitochondria, Golgi complex, plasmodesma, and cytosol. The gene is linked to traits including leaf area index, vegetative vigor, seed set percent, photosynthetic ability, water stress response, photoperiod sensitivity trait, iron content trait, cadmium concentration, linoleic acid content, linolenic acid content, lignin biosynthesis trait, phosphorus uptake, and plant male sterility. Studies of related genes in other species connect this gene family to drought tolerance, cold tolerance, heat tolerance, salt response, and tuber yield and quality.