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Open AccessJournal ArticleDOI

Formaldehyde and Ammonia as Precursors to Prebiotic Amino Acids

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This article is published in Science.The article was published on 1971-12-03 and is currently open access. It has received 34 citations till now. The article focuses on the topics: Amino acid.

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Citations
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Journal ArticleDOI

Serpentinization, Carbon, and Deep Life

TL;DR: McCollom et al. as mentioned in this paper explored the physiological challenges presented by the serpentinite environment, data from studies of serpentinite-hosted microbial ecosystems, and areas in need of further investigation.
Journal ArticleDOI

Geochemical constraints on the origin of organic compounds in hydrothermal systems

TL;DR: In this article, it is shown that at hydrothermal conditions, organic compounds are formed or destroyed primarily through oxidation/reduction reactions, and that the role of temperature is to lower the kinetic barriers to these reactions.
Journal ArticleDOI

Detection of cometary amines in samples returned by Stardust

TL;DR: The abundances of amino acids and amines, as well as their enantiomeric compositions, were measured in samples of Stardust comet-exposed aerogel and foil using liquid chromatography with UV fluorescence detection and time of flight mass spectrometry (LC-FD/ToF-MS) as mentioned in this paper.
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Prebiotic Astrochemistry and the Formation of Molecules of Astrobiological Interest in Interstellar Clouds and Protostellar Disks

TL;DR: Because these chemical processes are universal and should occur in these environments wherever they are found, this implies that some of the starting materials for life are likely to be widely distributed throughout the universe.
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Thermal reactions in interstellar ice: A step towards molecular complexity in the interstellar medium

TL;DR: In this article, a list of purely thermal reactions involving electronically stable reactants to complement existing grain chemistry networks is provided, and the kinetic parameters of the reactions are given when available.
References
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Book ChapterDOI

[117] Chromatographic determination of amino acids by the use of automatic recording equipment

TL;DR: This chapter describes the chromatographic determination of amino acids by the use of automatic recording equipments and suggests that air-oxidation of cysteine in the hydrolyzate to cystine, before chromatography, is desirable in order to obtain a more accurate value for the total cyStine + cySteine content of the protein.
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Detection of NH sub 3 molecules in the interstellar medium by their microwave emission.

TL;DR: Ammonia gas molecules in interstellar medium, discussing detection in direction of galactic center by means of microwave emission as mentioned in this paper, discussed detection in the direction of the galactic center using microwave emission.
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Microwave Detection of Interstellar Formaldehyde

TL;DR: Interstellar formaldehyde has been detected in absorption against numerous galactic and extragalactic radio sources by means of the ground-state rotational transition at 4830 MHz as mentioned in this paper.
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Ammonium Ion Concentration in the Primitive Ocean

TL;DR: If ion exchange on clay minerals regulated the cationts in the primitive ocean as it does in the present ocean, the pH would have been 8 and the K+ concentration 0.01M, and the minimum NH4+ concentratin is 1 x 10-3M, based on the reversible deamination of as partic acid and the assumption that aspartic acid is necessary for the origin of life.
Journal ArticleDOI

Amino acid synthesis from formaldehyde and hydroxylamine.

TL;DR: The experiments reported here have shown that by heating an aqueous mixture of formaldehyde and hydroxylamine hydrochloride, several amino acids, hydroxy acids, and other biochemical compounds are formed, the predominant amino acid formed is glycine.
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