MET-ENK
Methionine Enkephalin
YGGFM Amino Acids · MW: 573.64
Amino Acids
YGGFM
Molecular Weight
573.64
Half-life
seconds to minutes
Research Score
4.6
Studies
85
Storage
Store lyophilized at -20°C, reconstituted at 2-8°C
What is MET-ENK?
An endogenous pentapeptide closely related to leucine enkephalin and derived from proenkephalin. It is studied for opioid receptor activity, pain modulation, and neuroimmune signaling.
Key Benefits & Mechanisms
opioid signaling
pain modulation
neuroimmune research
Research Summary
Methionine enkephalin is a documented endogenous opioid neuropeptide with short persistence in plasma and tissues. It is commonly used in biochemical and receptor studies as a prototype enkephalin peptide.
Related Peptides
Neurokinin A
Neurokinin A
A tachykinin neuropeptide generated from the preprotachykinin A precursor. It participates in pain transmission, neurogenic inflammation, and smooth muscle signaling.
NeuropeptidesOXT
Oxytocin
A hypothalamic nonapeptide neuropeptide and hormone best known for roles in parturition, lactation, and social behavior. It is also used as a reference compound in receptor and intranasal-delivery research.
NeuropeptidesSP
Substance P
A tachykinin neuropeptide involved in nociception, inflammation, and gastrointestinal signaling. It is widely used in receptor pharmacology and pain-pathway research.
NeuropeptidesLEU-ENK
Leucine Enkephalin
An endogenous pentapeptide from the proenkephalin family that acts on opioid receptors. It is a classic opioid neuropeptide used in analgesia and receptor-binding studies.
Neuropeptides