Enzymatic reactions [BR:br08201]
2. Transferase reactions
2.5 Transferring alkyl or aryl groups, other than methyl groups
2.5.1 Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)
2.5.1.76
R09530 O-Phospho-L-serine + Sulfite <=> L-Cysteate + Orthophosphate