L-seryl-L-threonine + H2O = L-threonine + L-serine
l-seryl-l-threonine + h2o = l-threonine + l-serine
L-seryl-L-threonine + H2O = L-threonine + L-serine
l-seryl-l-threonine + h2o = l-threonine + l-serine