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 => o-phospho-l-serine + thiosulfate