(2S)-2-phospholactate + GTP + H(+) = (2S)-lactyl-2-diphospho-5'-guanosine + diphosphate
(2s)-2-phospholactate + gtp + h(+) = (2s)-lactyl-2-diphospho-5'-guanosine + diphosphate
"2-phospho-L-lactate guanylyltransferase"
"2-phospho-l-lactate guanylyltransferase"