Back to Peptide Catalog
P-32056

β-Endorphin (Human)

An endogenous opioid peptide generated by cleavage of the POMC precursor. A potent μ-opioid receptor agonist with analgesic activity stronger than morphine. Involved in analgesia, reward, stress, and mood regulation. Release increases after exercise (“runner’s high”). Research grade for studies of the opioid system, pain, exercise physiology, and mood regulation.

Basic Information

Product Name
β-Endorphin (Human)
Catalog No.
P-32056
CAS No.
61214-51-5
Sequence
H-YGGFMTSEKSQTPLVTLFKNAIIKNAYKKGE-OH
Molecular Formula
C158H251N39O46S
Molecular Weight
3465.03

Peptide Depictor

31 aa

H--OHY1G2G3F4M5T6S7E8K9S10Q11T12P13L14V15T16L17F18K19N20A21I22I23K24N25A26Y27K28K29G30E31
Mouse wheel or pinch to zoom, drag to pan, click to show residue structure
Natural AA
Non-natural AA
Linker-like
Side-chain mod
Unknown
Acidic
Basic
Hydrophobic
Aromatic
Modified
Disulfide bond
Cyclization bond
AI-Assisted Peptide Property AnalysisShow

Sequence Overview

H-YGGFMTSEKSQTPLVTLFKNAIIKNAYKKGE-OH
Length
31.00
Molecular Weight
3462.82 Da
Monoisotopic Mass
3462.82 Da
Estimated Net Charge
3.000
pI
10.07
Hydrophobicity GRAVY
-0.4580

Physicochemical Properties

Basic Residue Ratio
16%
Acidic Residue Ratio
7%
Aromatic Residue Ratio
13%
Cys Count
0.000
Oxidation-Risk Residues
1.000
Asp-Gly / Asn-Gly
0.000

Solubility Analysis

Water Solubility
Moderate
Acidic Aqueous Compatibility
Suitable
Basic Aqueous Compatibility
Use with caution
DMSO Solubility Tendency
Moderate
Recommended Delivery Form
TFA
  • 疏水残基比例偏高,建议先小量溶解测试

Calculation Parameters

Calculated parameters are model predictions for research design, candidate comparison, and project evaluation only. They are not experimental measurements or final synthesis outcomes.

PropertyParameterValueResult
Hemolysis Riskscore threshold0.4392————0.5640Non-hemolytic
Non-Foulingscore threshold0.02014————0.3892Fouling
Solubilityscore threshold0.9843————0.3290Soluble
Cell-Penetrating Potentialscore threshold0.6028————0.5028Cell-Penetrating
Toxicity Riskscore threshold0.5587————0.4900Toxic
PAMPA Passive Membrane Permeabilitypredicted value-13.35PAMPA prediction: lower passive membrane permeability
Caco-2 Permeabilitypredicted value-5.860Caco-2 prediction: higher cell-model permeability
Half-Life Model Outputmodel output0.8552Model output only, not in-vivo half-life