label: an alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid IVA + CMP-3-deoxy-beta-D-manno-octulosonate => an alpha-Kdo-(2->8)-alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid IVA + CMP + H(+)
label_lc: an alpha-kdo-(2->4)-alpha-kdo-(2->6)-lipid iva + cmp-3-deoxy-beta-d-manno-octulosonate => an alpha-kdo-(2->8)-alpha-kdo-(2->4)-alpha-kdo-(2->6)-lipid iva + cmp + h(+)