L-serine + ADP <=> O-phospho-L-serine + AMP + H(+)
l-serine + adp <=> o-phospho-l-serine + amp + h(+)
L-serine + ADP <=> O-phospho-L-serine + AMP + H(+)
l-serine + adp <=> o-phospho-l-serine + amp + h(+)