Cited by 52Origins and Evolution of LifeAsymmetric Synthesis and CatalysisEnzyme Catalysis and Immobilization

Chiral Sugars Drive Enantioenrichment in Prebiotic Amino Acid Synthesis

Open access
Wagner, Alexander J., Zubarev, Dmitry Yu., Aspuru-Guzik, Alán, Blackmond, Donna G.·2017·ACS Central Science

Abstract

Chiral pentose sugars mediate the enantioselective synthesis of amino acid precursors, with the magnitude of the chiral induction dictated by a subtle cooperativity between sugar hydroxyl groups. Ribose and lyxose give opposite chiral preferences, and theoretical calculations reveal the pseudoenantiomeric nature of transition state structures from the two sugars. Prebiotically plausible mixtures of natural d-sugars lead to enantioenrichment of natural l-amino acid precursors. Temporal monitoring and kinetic modeling of the reaction reveal an unusual dynamic kinetic resolution that shifts toward an enantioselective pathway over time, providing an amplification mechanism for the transfer of chiral information. This work adds to growing evidence for synergy in the etiology of the single chirality of the two most important classes of biological molecules, the sugars that make up DNA and RNA and the amino acids that form proteins.

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Crossref · 10.1021/acscentsci.7b00085

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  • D-ribose provided the product with 70% e.e. biased in favour of unnatural (R)-configuration.

    “Notably, D-ribose provided the product with 70% e.e. biased in favour of unnatural (R)-configuration (Fig. 20, ( 5)).”

    From Possible chemical and physical scenarios towards biological homochirality (2022) · cites this paper as [515]

    The discussion of Table 5 (indexed under Abstract; page unavailable) identifies the major product of the d-ribose-mediated reaction as the R aminoamide. The copy’s Table 1 passage describes enantiomeric-excess measurements, but its numerical results are absent, so the specific 70% e.e. is not supported by the available text. (LLM, conf=0.85)

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  • The mixture of four D-pentoses favoured the natural (S) amino acid precursor.

    “the mixture of four D-pentoses actually favoured the natural (S) amino acid precursor.”
  • Hydrolysis of 2-benzyl a-amino nitrile yielded the corresponding a-amino amide (precursor of phenylalanine) with various e.e. values and configurations depending on the nature of the sugars.

    “The hydrolysis of 2-benzyl a-amino nitrile yielded the corresponding a-amino amide (precursor of phenylalanine) with various e.e. values and configurations depending on the nature of the sugars.”

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5 of the 57 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. Edward J. T.; Chubb F. L. Pseudo-enzymatic hydrolyses of amino-nitriles to amino-amides. Proc. R. Ir. Acad. 1983, 83B, 57– 64.
  2. Hoops S.; Sahle S.; Gauges R.; Lee C.; Pahle J.; Simus N.; Singhal M.; Xu L.; Mendes P.; Kummer U. COPASI--a COmplex PAthway SImulator. Bioinformatics 2006, 22, 3067– 3074. 10.1093/bioinformatics/btl485. 17032683 · DOI · Paper page

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Authors
Wagner, A. J., Zubarev, D. Y., Aspuru-Guzik, A., & Blackmond, D. G.
Affiliations
  • Scripps Research Institute (US)
  • Harvard University (US)
  • Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02139, United States
Corresponding author
Blackmond, Donna G.
Venue
ACS Central Science
Published
2017-03-21
Volume
3
Issue
4
Pages
322-328
ISSN
  • 2374-7943 (ISSN-L)
  • 2374-7951
OpenAlex
W2600935015
Cited by
52
References
57
Citations by year
2026: 1 · 2025: 4 · 2024: 6 · 2023: 5 · 2022: 4 · 2021: 7 · 2020: 3 · 2019: 8 · 2018: 10 · 2017: 4
FWCI
3.74
Type
journal article
Language
en
Open access
Locations
  • ACS Central Science (publishedVersion, other-oa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Simons Foundation (SCOL 287625, SCOL 291937)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
  • Physical Sciences › Chemistry › Organic Chemistry › Asymmetric Synthesis and Catalysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Enzyme Catalysis and Immobilization
Keywords
enantioenrichment, ribose, lyxose, chiral induction, dynamic kinetic resolution, asymmetric synthesis, transition state structure, kinetic modeling, origin of homochirality, amino acid precursors

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