The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
AMINO ACID COMPOSITION AND SEQUENCE OF DERMORPHIN, A NOVEL OPIATE‐LIKE PEPTIDE FROM THE SKIN OF PHYLLOMEDUSA SAUVAGEI
Abstract
Dermorphin, a heptapeptide with very potent opiate‐like activity, has been isolated from methanol extracts of the skin of the South American frog Phyllomedusa sauvagei. The amino acid sequence of the peptide is: H‐Tyr‐D‐Ala‐Phe‐Gly‐Tyr‐Pro‐Ser‐NH 2. Dermorphin presents striking differences from the known enkephalins; it offers a surprising example of a peptide from Vertebrata containing a D‐amino acid residue in its sequence.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Identification of two related pentapeptides from the brain with potent opiate agonist activity
Hughes, J., Smith, T. W., Kosterlitz, H. W., Fothergill, L. A., Morgan, B. A., & Morris, H. R. (1975) · Nature · doi:10.1038/258577a0 · Cited by 3,806
Cited by
Mor, A., Huong, N. V., Delfour, A., Migliore-Samour, D., & Nicolas, P. (1991) · Biochemistry · doi:10.1021/bi00100a014 · Cited by 313
Genchi, G. (2017) · Amino Acids · doi:10.1007/s00726-017-2459-5 · Cited by 283
d-Aspartic acid: An endogenous amino acid with an important neuroendocrine role
D'Aniello, A. (2007) · Brain Research Reviews · doi:10.1016/j.brainresrev.2006.08.005 · Cited by 265
Nagata, Y., Fujiwara, T., Kawaguchi-Nagata, K., Fukumori, Y., & Yamanaka, T. (1998) · Biochimica et Biophysica Acta (BBA) - General Subjects · doi:10.1016/s0304-4165(97)00084-6 · Cited by 76
Metadata
- Authors
- MONTECUCCHI, P. C., DE CASTIGLIONE, R., PIANI, S., GOZZINI, L., & ERSPAMER, V.
- Venue
- International Journal of Peptide and Protein Research
- Publisher
- Wiley
- Published
- 1981-03
- Volume
- 17
- Issue
- 3
- Pages
- 275-283
- ISSN
- 0367-8377 (ISSN-L)
- OpenAlex
- W2089320192
- Cited by
- 473
- References
- 1
- FWCI
- 6.32
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: AMINO ACID COMPOSITION AND SEQUENCE OF DERMORPHIN, A NOVEL OPIATE‐LIKE PEPTIDE FROM THE SKIN OF PHYLLOMEDUSA SAUVAGEI. https://app.cochat.ai/papers/10.1111/j.1399-3011.1981.tb01993.x
- The paper
- MONTECUCCHI, P. C., DE CASTIGLIONE, R., PIANI, S., GOZZINI, L., & ERSPAMER, V. (1981). AMINO ACID COMPOSITION AND SEQUENCE OF DERMORPHIN, A NOVEL OPIATE‐LIKE PEPTIDE FROM THE SKIN OF PHYLLOMEDUSA SAUVAGEI. International Journal of Peptide and Protein Research. https://doi.org/10.1111/j.1399-3011.1981.tb01993.x
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.