PSA — Pisum sativum

Summary

PsPSAT1 (PSAT2G150440) on garden pea chromosome 2LG1 encodes a phosphoserine aminotransferase, a pyridoxal phosphate-dependent enzyme with O-phospho-L-serine:2-oxoglutarate transaminase activity and protein homodimerization activity. The product localizes to the chloroplast thylakoid, stroma, and plastid. This gene is associated with calcium concentration and protein content, as well as phenotypes including plant growth, leaf senescence, seed germination, seed coat development, and sterol metabolism, homeostasis, and ester synthesis. Related genes in other species link the family to serine biosynthesis, seed coat morphology, nitrogen content, leaf senescence, seed growth and development, plant growth and development, and photochemical quenching.