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EnglishWe studied the effect of partial retro-inverso modification of selected peptide bonds of dermorphin (H-Tyr-D-Ala-Phe-Gly-Tyr-Pro-Ser-NH2. The modifications concern two consecutive peptide bonds (Phe3-Cly4-Tyr5, I) or a single one (Gly4-Tyr5-, II or Phe3-Gly4, III). All pseudoheptapeptides showed low opioid activity in the in vitro and in vivo tests. Compound III has a biological potency comparable to that of morphine but only 2-5% of original dermorphin when tested in guinea pig ileum preparation and in mice tail-flick assay after intracerebro or subcutaneous administration.
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http://hdl.handle.net/11584/6786| Titolo: | Synthesis and opioid activity of partially retro-inverso analogs of dermorphin |
| Autori interni: | BALBONI, GIANFRANCO |
| Data di pubblicazione: | 1985 |
| Rivista: | INTERNATIONAL JOURNAL OF PEPTIDE & PROTEIN RESEARCH |
| Abstract: | We studied the effect of partial retro-inverso modification of selected peptide bonds of dermorphin (H-Tyr-D-Ala-Phe-Gly-Tyr-Pro-Ser-NH2. The modifications concern two consecutive peptide bonds (Phe3-Cly4-Tyr5, I) or a single one (Gly4-Tyr5-, II or Phe3-Gly4, III). All pseudoheptapeptides showed low opioid activity in the in vitro and in vivo tests. Compound III has a biological potency comparable to that of morphine but only 2-5% of original dermorphin when tested in guinea pig ileum preparation and in mice tail-flick assay after intracerebro or subcutaneous administration. |
| Handle: | http://hdl.handle.net/11584/6786 |
| Tipologia: | 1.1 Articolo in rivista |
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