Evidence map›Paper›PMID 34001606›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Short hydrogen bonds enhance nonaromatic protein-related fluorescence.

Amberley D Stephens, Muhammad Nawaz Qaisrani, Michael T Ruggiero, Gonzalo Díaz Mirón, Uriel N Morzan, Mariano C González Lebrero, Saul T E Jones, Emiliano Poli, Andrew D Bond, Philippa J Woodhams and 7 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Anomalous Water Fluorescence Induced by Solutes.The journal of physical chemistry letters · 2025
    Article
  7. Crystallization of L-Cysteine in Heavy Water Induces Intrinsic Fluorescence.Angewandte Chemie (International ed. in English) · 2025
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. One- and Two-Photon Excited Autofluorescence of Lysozyme Amyloids.The journal of physical chemistry letters · 2022
    Article
  14. Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Amberley D StephensChemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom.ORCID 0000-0002-7303-6392
Muhammad Nawaz QaisraniCondensed Matter and Statistical Physics, The Abdus Salam International Centre for Theoretical Physics, 34151 Trieste, Italy.ORCID 0000-0003-4167-3116
Michael T RuggieroChemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom.ORCID 0000-0003-1848-2565
Gonzalo Díaz MirónDepartamento de Química Inorgánica, Analítica y Química Física, Instituto de Química Física de los Materiales, Medio Ambiente y Energía, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina.
Uriel N MorzanCondensed Matter and Statistical Physics, The Abdus Salam International Centre for Theoretical Physics, 34151 Trieste, Italy.
Mariano C González LebreroDepartamento de Química Inorgánica, Analítica y Química Física, Instituto de Química Física de los Materiales, Medio Ambiente y Energía, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina.
Saul T E JonesCavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom.
Emiliano PoliCondensed Matter and Statistical Physics, The Abdus Salam International Centre for Theoretical Physics, 34151 Trieste, Italy.
Andrew D BondDepartment of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom.
Philippa J WoodhamsChemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom.ORCID 0000-0003-4537-5976
Elyse M KleistDepartment of Chemistry, University of Vermont, Burlington, VT 05405.ORCID 0000-0001-8596-659X
Luca GrisantiDivision of Theoretical Physics, Ruđer Bošković Institute, 10000 Zagreb, Croatia.
Ralph GebauerCondensed Matter and Statistical Physics, The Abdus Salam International Centre for Theoretical Physics, 34151 Trieste, Italy.
J Axel ZeitlerChemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom.ORCID 0000-0002-4958-0582
Dan CredgingtonCavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom.
Ali HassanaliCondensed Matter and Statistical Physics, The Abdus Salam International Centre for Theoretical Physics, 34151 Trieste, Italy; ahassana@ictp.it gsk20@cam.ac.uk.
Gabriele S Kaminski SchierleChemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom; ahassana@ictp.it gsk20@cam.ac.uk.ORCID 0000-0002-1843-2202

Funding

Medical Research Council MR/K02292X/1Wellcome TrustWellcome Trust 065807/Z/01/Z
6 · The paper itself

Abstract

Fluorescence in biological systems is usually associated with the presence of aromatic groups. Here, by employing a combined experimental and computational approach, we show that specific hydrogen bond networks can significantly affect fluorescence. In particular, we reveal that the single amino acid L-glutamine, by undergoing a chemical transformation leading to the formation of a short hydrogen bond, displays optical properties that are significantly enhanced compared with L-glutamine itself. Ab initio molecular dynamics simulations highlight that these short hydrogen bonds prevent the appearance of a conical intersection between the excited and the ground states and thereby significantly decrease nonradiative transition probabilities. Our findings open the door to the design of new photoactive materials with biophotonic applications.

Indexed as

AmmoniaDensity Functional TheoryFluorescenceGlutamineHumansHydrogen BondingMolecular Dynamics SimulationOptics and PhotonicsPeptidesAmmoniaGlutaminePeptidespolyglutamineintrinsic fluorescenceshort hydrogen bondultraviolet fluorescence

Identifiers

PMID34001606
PMCPMC8166056

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.