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Endomorphins

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Endomorphins are two endogenous opioid peptides. Endomorphin-1 (Tyr-Pro-Trp-Phe-NH2) and endomorphin-2 (Tyr-Pro-Phe-Phe-NH2) are tetrapeptides with the highest known affinity and specificity for the μ opioid receptor. Endomorphin-1 is located in the nucleus of the solitary tract, the periventricular hypothalamus, and the dorsomedial hypothalamus, where it is found within histaminergic neurons and may regulate sedative and arousal behaviors.[1] It is assumed that endomorphins are the cleavage products of a larger precursor, but this polypeptide or protein has not yet been identified.

Endomorphins
Endomorphins
General
Systematic name  ?
Other names  ?
Molecular formula  ?
SMILES  ?
Molar mass  ?.?? g/mol
Appearance  ?
CAS number [?-?-?]
Properties
Density and phase  ? g/cm³, ?
Solubility in water  ? g/100 ml (?°C)
Melting point  ?°C (? K)
Boiling point  ?°C (? K)
Acidity (pKa)  ?
Basicity (pKb)  ?
Chiral rotation [α]D  ?°
Viscosity  ? cP at ?°C
Structure
Molecular shape  ?
Coordination
geometry
 ?
Crystal structure  ?
Dipole moment  ? D
Hazards
MSDS External MSDS
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NFPA 704
Flash point  ?°C
R/S statement R: ?
S: ?
RTECS number  ?
Supplementary data page
Structure and
properties
n, εr, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
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Other cations  ?
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Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references


See alsoEdit

ReferencesEdit

  1. (2008). Opioidergic projections to sleep-active neurons in the ventrolateral preoptic nucleus. Brain Research 1245: 96–107.
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