Technical Data
Choline Acetyltransferase (CHAT, CMS1A, CMS1A2, Acetyl CoA:choline O-acetyltransferase)
Choline acetyltransferase is a neuronal enzyme which catalyzes the reaction between Acetyl CoA and choline resulting in the formation of acetylcholine. It is therefore found primarily in cholinergic neurons making it a valuable marker for diseases associated with decreased cholinergic function such as Schizophrenia, Alzheimer disease (AD) and Down syndrome (Holt et al. 1999). Decreased choline acetyltransferase activity in particular has been shown in Schizophrenic subjects (Karson et al 1993). It has furthermore been demonstrated that in patients with AD, there are significantly lower levels of cortical ChAT that correlate with severity of the disease as measured by loss of neuropsychological function (Baskin et al. 1999).

Suitable for use in Immunohistochemistry and Western Blot. Other applications not tested.

Recommended Dilution:
Immunohistochemistry 1:100
Western Blot 1:1000
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4C for short-term only. For long-term storage and to avoid repeated freezing and thawing, add sterile glycerol (40-50%), aliquot and store at -20C. Aliquots are stable for at least 3 months at -20C. 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.
100ul-20CBlue IceHumanRabbit
Not determined
Synthetic peptide corresponding to native choline acetyltransferase purified from human placenta.
Supplied as a liquid.
Recognizes human 68/70 k choline acetyltransferase protein. Species Crossreactivity: Chicken, guinea pig, mouse, non-human primate and rat tissues.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
Karson CN, Casanova MF, Kleinman JE, Griffin WS (1993) Choline acetyltransferase in schizophrenia. Am. J.Psychiatry 150:454-459. Holt DJ, Herman MM, Hyde TM, Kleinman JE, Cinton CM, German DC, Hersh LB, Greybiel AM, Saper CB (1999) Evidence for a deficit in cholinergic interneurons in the striatum in schizophrenia. Neuroscience 94(1):21-31. Baskin DS, Browning JL, Pirozzolo FJ, Korporaal S, Baskin JA, Appel SH (1999) Brain choline acetyltransferase and mental function in Alzheimer disease. Arch Neurol. 56:1121-1123.