Tau, phosphorylated (Thr231)

May be stored at 4 °C for short-term only. For long-term storage and to avoid repeated freezing and thawing, add sterile glycerol (40-50%), aliquot and store at -20 °C. Aliquots are stable for at least 12 months at -20 °C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Recognizes human tau protein phosphorylated at threonine 231, fetal tau, and dephosphorylated neurofibrillary tangles. It is reactive with the Thr231 phosphorylated and diphosphorylated peptides. Does not react with autopsy derived normal adult tau or with unphosphorylated or Ser235 phosphorylated protein.