PUN1 — Capsicum annuum

Summary

T459_06020 (PUN1, also known as CaASAT3 or ASAT3) on pepper chromosome 2 encodes a protein with acyltransferase and O-acetyltransferase activity, classified as EC 2.3.2.35. The gene is associated with capsaicin biosynthesis and capsaicinoid content, and has been linked to pungency, fruit weight, fruit shape, fruit size, and flower color. It is associated with fruit development and fruit ripening, as well as response to jasmonic acid, wound healing, and secondary metabolism including alkaloid, lignin, and indole alkaloid anabolism. Additional associations include placentation, fermentation, and metabolism of carbohydrates, sucrose, mannose, nucleotides, and amino acids. The encoded protein localizes to both the cytoplasm and nucleus. Studies of related genes in other species link the family to additional acyltransferase activities (EC 2.3.1.107, 2.3.1.322, 2.3.1.325, 2.3.1.326).