Form:Supplied as a liquid in PBS, pH7.4, 0.2% BSA, 0.05% sodium azide. Labeled with Biotin. F/P ratio ~10-20:1.
Specificity:Recognizes phosphorylated serine both as free amino acid or when conjugated to carriers such as BSA or KLH. Does not react with nonphosphorylated serine, phosphorylated tyrosine or threonine, AMP, or ATP.