preferred_name: [(1->2)-alpha-L-rhamnosyl-(1->4)-alpha-D-galacturonosyl](n+1) + UDP + H(+) => alpha-D-galacturonosyl-[(1->2)-alpha-L-rhamnosyl-(1->4)-alpha-D-galacturonosyl](n) + UDP-beta-L-rhamnose
preferred_name_lc: [(1->2)-alpha-l-rhamnosyl-(1->4)-alpha-d-galacturonosyl](n+1) + udp + h(+) => alpha-d-galacturonosyl-[(1->2)-alpha-l-rhamnosyl-(1->4)-alpha-d-galacturonosyl](n) + udp-beta-l-rhamnose
label: [(1->2)-alpha-L-rhamnosyl-(1->4)-alpha-D-galacturonosyl](n+1) + UDP + H(+) => alpha-D-galacturonosyl-[(1->2)-alpha-L-rhamnosyl-(1->4)-alpha-D-galacturonosyl](n) + UDP-beta-L-rhamnose
label_lc: [(1->2)-alpha-l-rhamnosyl-(1->4)-alpha-d-galacturonosyl](n+1) + udp + h(+) => alpha-d-galacturonosyl-[(1->2)-alpha-l-rhamnosyl-(1->4)-alpha-d-galacturonosyl](n) + udp-beta-l-rhamnose