Technical Data
Enkephalin, Prepro (ppENK)
Met-enkephalin (tyr-gly-gly-phe-met) and leu-enkephalin (tyr-gly-gly-phe-leu) are pentapeptides which compete with and mimic the effects of opiate drugs. Although interest in enkephalins stems largely from their possible role in the brain, the richest source of these peptides is the adrenal gland. The amino acid sequence shows that the precursor is 267 amino acids long and contains 6 interspersed Met-enkephalin sequences and 1 Leu-enkephalin sequence. The precursor does not contain the sequences of dynorphin, alpha-neo-endorphin or beta-endorphin. (Because of structural similarities it had been postulated that beta-endorphin is precursor of Met-enkephalin, and that dynorphin or alpha-neo-endorphin is precursor of Leu-enkephalin.) It is involved in the modulation of nociceptive pain. ppENK may be capable of enhancing immune function in cancer or AIDS patients. Enkephalin is one of several naturally occurring morphine-like substances released from nerve endings of the central nervous system and the adrenal medulla. Enkephalins act as analgesics and sedatives in the body and appear to affect mood and motivation.

Suitable for use in Immunohistochemistry. Other applications not tested.

Recommended Dilutions:
Immunohistochemistry: 1:1000
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
50ul-20°CBlue IceRatRabbit
Not Determined
Synthetic peptide corresponding to CSYSKEVPEMEKRYGGFMRF of rat Enkephalin, Prepro (ppENK), conjugated to KLH.
Supplied as a liquid, 0.05% sodium azide.
Recognizes rat Enkephalin, Prepro. Species Crossreactivity: mouse. Both processes and cell bodies were observed when screened on rat and mouse brain and spinal cord.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Martin Novak, Briac Halbout, Eoin C. O'Connor, Jan Rodriguez Parkitna, Tian, Su, Minqiang Chai, Hans S. Crombag, Ainhoa Bilbao, Rainer Spanagel, David N. Stephens, Günther Schütz, and David Engblom. J. Neurosci., Sep 2010; 30: 11973-11982.