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Cited by 309

The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.

Nonprotein Amino Acids in the Murchison Meteorite

Open access
Kvenvolden, Keith A., Lawless, James G., Ponnamperuma, Cyril·1971·Proceedings of the National Academy of Sciences

Abstract

Twelve nonprotein amino acids appear to be present in the Murchison meteorite. The identity of eight of them has been conclusively established as N -methylglycine, β-alanine, 2-methylalanine, α-amino- n -butyric acid, β-amino- n -butyric acid, γ-amino- n -butyric acid, isovaline, and pipecolic acid. Tentative evidence is presented for the presence of N -methylalanine, N -ethylglycine, β-aminoisobutyric acid, and norvaline. These amino acids appear to be extraterrestrial in origin and may provide new evidence for the hypothesis of chemical evolution.

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Metadata

Authors
Kvenvolden, K. A., Lawless, J. G., & Ponnamperuma, C.
Venue
Proceedings of the National Academy of Sciences
Published
1971-02
Volume
68
Issue
2
Pages
486-490
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2088686908
Cited by
309
References
10
FWCI
25.18
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Nonprotein Amino Acids in the Murchison Meteorite. https://app.cochat.ai/papers/10.1073/pnas.68.2.486
The paper
Kvenvolden, K. A., Lawless, J. G., & Ponnamperuma, C. (1971). Nonprotein Amino Acids in the Murchison Meteorite. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.68.2.486

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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