CesA4 (IRX5)

Full Name

Cellulose synthase A catalytic subunit 4 [UDP-forming]

Keywords

Cellulose synthase A catalytic subunit 4 [UDP-forming]; Cellulose synthase A catalytic subunit 4; CesA4; IRX5

Background

CesA4 (IRX5) (EC=2.4.1.12) is a catalytic subunit of xylem-specific cellulose synthase enzyme, involved in secondary cell wall biosynthesis - cellulose synthase trerminal complexes. It interacts with CESA7 and CESA8 which is required for a functyional complex and localization in secondary cell wall deposition sites. Expressed in young plants, stems and flowers but not in leaves, roots and shoots. Amounts are increasing as stems mature.