The molecular structure of Dermorphin is composed of seven amino acids, of which six are non polar and the seventh is polar. The primary structure of Dermorphin is highly specific, and its sequence includes H-Tyr Gly Gly Phe Met Thr Ser Glu Lys Gln Tr Pro Leu Val Tr OH, where H represents histidine, Tyr represents tyrosine, Gly represents glycine, Phe represents phenylalanine, Met represents methionine, Thr represents threonine, Ser represents serine, Glu represents glutamate, Lys represents lysine, Gln represents glutamine, Pro represents proline, and Leu represents leucine, Val represents valine, Thr represents threonine. The molecular weight is 1068.17 and the molecular formula is C40H69N7O10. In addition, Dermorphin also has some special chemical properties. It is a type of μ- Opioid receptor (MOR) agonists can bind to and activate opioid receptors in the body. In addition, Dermorphin also has high affinity and specificity, and can interact with other targets such as NOP receptors. These properties give Dermorphin certain potential in clinical treatment of some pain and inflammatory diseases.
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Dermorphin is a heptapeptide that has been isolated for the first time from the skin of South American frogs belonging to the genus Euphorbia. This peptide is a natural opioid substance that acts as an agonist and binds to μ Opioid receptors have high potency and selectivity. Its amino acid sequence is H-Tyr D-Ala Phe Gly Tyr Pro Ser NH2. Dermorphin has not been found in the skin of humans or other mammals, while similar D-amino acid peptides are only found in bacteria, amphibians, and mollusks. This means that it was generated through unusual post translational modifications carried out by amino acid isomerases. This unusual process is necessary because the D-alanine in this peptide is not within the 20 amino acids encoded in the genetic code, so the peptide cannot be synthesized from the coding in the biological genome in the usual way.
Method 1:
The method of extracting Dermorphin from the skin of South American frogs mainly includes the following steps:
1. Prepare relevant reagents and equipment: including chromatographic columns, methanol, acetic acid, water and other reagents, as well as equipment such as high-performance liquid chromatography and spectrophotometer.
2. Wash the skin of the South American frog thoroughly, then cut it into small pieces and soak it in water. Boil in water to extract the active ingredients from the skin.
3. Filter with filter paper to remove impurities and obtain a clear solution.
4. Wash the solution through a chromatographic column using methanol and acetic acid as the mobile phase. During the elution process, Dermorphin will be separated from other compounds and adsorbed on the chromatographic column.
5. Collect the eluate and detect it with a spectrophotometer, and collect the eluate containing Dermorphin.
6. Dry the eluent to obtain the crude Dermorphin.
7. Recrystallize the crude Dermorphin to obtain the pure Dermorphin. The solvent used in the recrystallization process is generally a mixture of water and ethanol.
Although chemical reaction equations cannot be provided, a general reaction principle can be provided: during the extraction process, Dermorphin reacts with water under high temperature and acidic conditions, generating a series of derivatives and metabolites. These products can be separated by chromatography column and purified by recrystallization and other methods to obtain pure Dermorphin.
It should be noted that the above methods are for reference only, and adjustments and improvements need to be made based on specific experimental conditions and actual situations during actual operation.
Method 2:
There are many methods for preparing Dermorphin in the laboratory, which involve different reaction conditions, raw materials, and steps. The following will introduce one of the methods for preparing Dermorphin in the laboratory, with the specific steps as follows:
1. Prepare relevant reagents and raw materials: including acetic anhydride, ethanol, acetic acid, sodium acetate, lead acetate, ammonia, methanol, and other reagents, as well as experimental equipment such as stirrers, separation funnels, thermometers, and burets.
2. Mix ethanol and ammonia, add acetic anhydride, heat and stir evenly to obtain solution A.
3. Mix sodium acetate and lead acetate, add to solution A, heat and stir evenly to obtain solution B.
4. Add methanol to solution B, heat and stir evenly to obtain solution C.
5. Drop solution C into ice water, stir evenly, and let it settle for a period of time to obtain the crude Dermorphin.
6. Recrystallize the crude Dermorphin to obtain the pure Dermorphin.
The chemical reaction equation for preparing Dermorphin in the laboratory is as follows:
(CH3)2CHCOOH+2CH3OH+NH3→(CH3)2CHCOOCH3+NH4HCOOCH3+H2O
(CH3)2CHCOOCH3+NH4HCOOCH3+NaOH+Pb(CH3COO)2→(CH3)2CHCOONa+Na2Pb(CH3COO)2+CH3OH+H2O
(CH3)2CHCOONa+Na2Pb(CH3COO)2+NH4OH→(CH3)2CHCOOH+(CH3)2CHCONH4+Pb(OH)2↓+NaOH
Among them, Pb(OH)2 ↓ is the precipitate.
Dermorphin peptide is a natural heptapeptide compound extracted from the skin of Phylomedusa frogs. The chemical structure of Dermorphin is composed of seven amino acids, of which six are non polar and the seventh is polar. The molecular weight of Dermorphin is 1068.17, and the molecular formula is C40H69N7O10. In addition, Dermorphin has some special chemical properties. It is a type of μ- Opioid receptor (MOR) agonists can bind to and activate opioid receptors in the body, thereby exerting analgesic, anti-inflammatory, immunomodulatory, and neuroprotective effects. In addition, Dermorphin also has high affinity and specificity, and can interact with other targets such as NOP receptors. These properties give Dermorphin certain potential in clinical treatment of some pain and inflammatory diseases. However, due to its limited production, current research and development mainly focus on finding analogues and derivatives of Dermorphin to increase its stability and activity, and reduce potential adverse reactions.