I9H — Asparagus officinalis

Summary

A4U43_C05F19010, symbol I9H (also known as IRX9H, IRX9-L, AoIRX9-L, AoIRX9H) on asparagus chromosome 5, encodes a protein belonging to the Glyco_trans_43 and nucleotide-diphossugar_trans families. It has galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase and xylosyltransferase activities, and is associated with glucuronoxylan and xylan biosynthesis, secondary cell wall biogenesis, cell wall organization, and pollen exine formation. The product localizes to the Golgi membrane and Golgi complex. It is linked to xylan biosynthesis and carbohydrate metabolism pathways. Related genes in other species connect the family to glucuronoxylan biosynthesis.