Evidence map›Paper›PMID 34214252›Full record

ArticleChemistry, an Asian journal2021

Chalcogen Bonds in Selenocysteine Seleninic Acid, a Functional GPx Constituent, and in Other Seleninic or Sulfinic Acid Derivatives.

Abhishek Tripathi, Andrea Daolio, Andrea Pizzi, Zhifang Guo, David R Turner, Alberto Baggioli, Antonino Famulari, Glen B Deacon, Giuseppe Resnati, Harkesh B Singh

Open access · hybridAbstract read
In one paragraph

Article in Chemistry, an Asian journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.2field-weighted citation impact, top 14% of its field
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

5 citing papers in PubMed, 22 citations in OpenAlex.

  1. When CuClCrystal growth & design · 2025
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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

10 authors at 4 institutions in 3 countries.

Abhishek TripathiDepartment of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India.ORCID http://orcid.org/0000-0002-7488-5556
Andrea DaolioDepartment of Chemistry, Materials and Chemical Engineering, "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131, Milano, Italy.ORCID http://orcid.org/0000-0003-3571-3935
Andrea PizziDepartment of Chemistry, Materials and Chemical Engineering, "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131, Milano, Italy.ORCID http://orcid.org/0000-0002-4180-9151
Zhifang GuoSchool of Chemistry, Monash University, Clayton, Victoria, 3800, Australia.
David R TurnerSchool of Chemistry, Monash University, Clayton, Victoria, 3800, Australia.ORCID http://orcid.org/0000-0003-1603-7994
Alberto BaggioliDepartment of Chemistry, Materials and Chemical Engineering, "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131, Milano, Italy.ORCID http://orcid.org/0000-0001-8159-6077
Antonino FamulariDepartment of Chemistry, Materials and Chemical Engineering, "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131, Milano, Italy.ORCID http://orcid.org/0000-0001-5287-1092
Glen B DeaconSchool of Chemistry, Monash University, Clayton, Victoria, 3800, Australia.ORCID http://orcid.org/0000-0002-6966-6121
Giuseppe ResnatiDepartment of Chemistry, Materials and Chemical Engineering, "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131, Milano, Italy.ORCID http://orcid.org/0000-0002-0797-9296
Harkesh B SinghDepartment of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India.
Politecnico di Milano · ITIITB-Monash Research Academy · INIndian Institute of Technology Bombay · INMonash University · AU

Funding

IITB-Monash Research Academy IMURA 0478
6 · The paper itself

Abstract

The controlled oxidation reaction of L-selenocystine under neutral pH conditions affords selenocysteine seleninic acid (3-selenino-L-alanine) which is characterized also by means of single-crystal X-ray diffraction. This technique shows that selenium forms three chalcogen bonds (ChBs), one of them being outstandingly short. A survey of seleninic acid derivatives in the Cambridge Structural Database (CSD) confirms that the C-Se(=O)O- functionality tends to act as a ChB donor robust enough to systematically influence the interactional landscape in the solid. Quantum Theory of Atom in Molecules (QTAIM) analysis proves the attractive nature of the short contacts observed in crystals containing the seleninic functionality and calculation of surface molecular electrostatic potential (MEP) reveals that remarkably positive σ-holes can frequently be found opposite to the covalent bonds at selenium. Both CSD searches and QTAIM and MEP approaches show that also the sulfinic acid moiety can function as a ChB donor, albeit less frequently than the seleninic acid one. These findings may contribute to a better understanding, at the atomic level, of the mechanism of action of the enzymes that control oxidative stress and ROS deactivation and that contain selenocysteine seleninic acid and cysteine sulfinic acid in the active site.

Indexed as

Amino AcidsChalcogen BondSeleniumSelenocysteineSigma-hole

Identifiers

PMID34214252
PMCPMC8456948
OpenAlexW3176263301

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.