PAP2 — Brassica juncea

Summary

BJUA01G32710S, also known as PAP2 or BjFBN1B, encodes a protein containing a PAP/fibrillin domain and is associated with multiple enzymatic activities including phosphoriboisomerase, starch synthase, and transglycosidase activity, as well as protein binding and enzyme modulation. This gene is linked to the pentose-phosphate shunt, photosynthetic electron transport in photosystem II, ATP synthesis, and reductive pentose-phosphate cycle. It has been connected to pigmentation, anthocyanin anabolism, starch metabolism, lipogenesis, and responses to cold, abscisic acid, and light stimulus. The product localizes to chloroplast thylakoid membranes, stroma, envelope, and thylakoid lumen. Associations include starch grain shape and content, flower and petal color, chlorophyll content, anthocyanin content, jasmonic acid content, chloroplast development, shoot growth angle, and root morphology traits. Related genes in other species link the family to starch granule initiation and number.