O-phospho-L-serine + thiosulfate => S-sulfo-L-cysteine + phosphate
o-phospho-l-serine + thiosulfate => s-sulfo-l-cysteine + phosphate
O-phospho-L-serine + thiosulfate => S-sulfo-L-cysteine + phosphate
o-phospho-l-serine + thiosulfate => s-sulfo-l-cysteine + phosphate