Open Access
Stability toward High Energy Radiation of Non-Proteinogenic Amino Acids: Implications for the Origins of Life
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Actinium Chemical Research srl, Via Casilina 1626A, Rome 00133, Italy
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Astrophysical Observatory of Catania, Via S. Sofia 78, Catania 95123, Italy
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Astrophysical Institute of Canary Islands, Via Lactea s/n, La Laguna 38200, Tenerife, Spain
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4
Institute of Chemical Methodologies, CNR, Via Salaria Km 29,300, Monterotondo Stazione, Rome 00016, Italy
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5
National Center for Astronomy, KACST, P.O. Box 6086, Riyad 11442, Saudi Arabia
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Publication type: Journal Article
Publication date: 2013-07-30
PubMed ID:
25369815
General Biochemistry, Genetics and Molecular Biology
Ecology, Evolution, Behavior and Systematics
Paleontology
Space and Planetary Science
Abstract
A series of non-proteinogenic amino acids, most of them found quite commonly in the meteorites known as carbonaceous chondrites, were subjected to solid state radiolysis in vacuum to a total radiation dose of 3.2 MGy corresponding to 23% of the total dose expected to be taken by organic molecules buried in asteroids and meteorites since the beginning of the solar system 4.6 × 109 years ago. The radiolyzed amino acids were studied by FT-IR spectroscopy, Differential Scanning Calorimetry (DSC) and by polarimety and Optical Rotatory Dispersion (ORD). It is shown that an important fraction of each amino acid is able to “survive” the massive dose of radiation, while the enantiomeric excess is partially preserved. Based on the results obtained, it is concluded that it is unsurprising to find amino acids even in enantiomeric excess in carbonaceous chondrites.
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Total citations:
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Citations from 2025:
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(17.65%)
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GOST
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Cataldo F. et al. Stability toward High Energy Radiation of Non-Proteinogenic Amino Acids: Implications for the Origins of Life // Life. 2013. Vol. 3. No. 3. pp. 449-473.
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Cataldo F., Iglesias-Groth S., Angelini G., Hafez Y. Stability toward High Energy Radiation of Non-Proteinogenic Amino Acids: Implications for the Origins of Life // Life. 2013. Vol. 3. No. 3. pp. 449-473.
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RIS
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TY - JOUR
DO - 10.3390/life3030449
UR - https://doi.org/10.3390/life3030449
TI - Stability toward High Energy Radiation of Non-Proteinogenic Amino Acids: Implications for the Origins of Life
T2 - Life
AU - Cataldo, Franco
AU - Iglesias-Groth, Susana
AU - Angelini, Giancarlo
AU - Hafez, Yaser
PY - 2013
DA - 2013/07/30
PB - MDPI
SP - 449-473
IS - 3
VL - 3
PMID - 25369815
SN - 2075-1729
ER -
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BibTex (up to 50 authors)
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@article{2013_Cataldo,
author = {Franco Cataldo and Susana Iglesias-Groth and Giancarlo Angelini and Yaser Hafez},
title = {Stability toward High Energy Radiation of Non-Proteinogenic Amino Acids: Implications for the Origins of Life},
journal = {Life},
year = {2013},
volume = {3},
publisher = {MDPI},
month = {jul},
url = {https://doi.org/10.3390/life3030449},
number = {3},
pages = {449--473},
doi = {10.3390/life3030449}
}
Cite this
MLA
Copy
Cataldo, Franco, et al. “Stability toward High Energy Radiation of Non-Proteinogenic Amino Acids: Implications for the Origins of Life.” Life, vol. 3, no. 3, Jul. 2013, pp. 449-473. https://doi.org/10.3390/life3030449.