O-antigen group O:52 polymerase yielding a very long O antigen chain length (100 repeat units)
100.0 udcdpglcnac_b1_3_gal_a1_4_glcnac_b1_4_gal_b1_4_rib_p ⇌ 99.0 udcpdp_p + OA52_VL_p