O-antigen group O:45 polymerase yielding a very long O antigen chain length (100 repeat units)
100.0 udcdpglcnac_b1_3_gal_a1_2_fuc_b1_4_rib_a1_3_fucac_b1_4_glc_p ⇌ 99.0 udcpdp_p + OA45_VL_p