Evidence map›Paper›PMID 35058365›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2022

Atomic-resolution chemical characterization of (2x)72-kDa tryptophan synthase via four- and five-dimensional

Alexander Klein, Petra Rovó, Varun V Sakhrani, Yangyang Wang, Jacob B Holmes, Viktoriia Liu, Patricia Skowronek, Laura Kukuk, Suresh K Vasa, Peter Güntert and 2 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

28 citing papers in PubMed.

  1. NMR crystallography reveals active-site protonation states of Toho-1 β-lactamase in complex with avibactam.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Solution-state nuclear magnetic resonance studies of theBiochemistry and biophysics reports · 2026
    Article
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  7. OPTO: Automated Optimization for Solid-State NMR Spectroscopy.Journal of the American Chemical Society · 2025
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  10. Review
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  14. Solid-State NMRJournal of magnetic resonance (San Diego, Calif. : 1997) · 2024
    Article
  15. Protein deuterationChemical communications (Cambridge, England) · 2024
    Article
  16. Article
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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

12 authors.

Alexander KleinDepartment of Chemistry and Pharmacy, Ludwig Maximilians University, 81377 Munich, Germany.
Petra RovóDepartment of Chemistry and Pharmacy, Ludwig Maximilians University, 81377 Munich, Germany.
Varun V SakhraniDepartment of Chemistry, University of California, Riverside, CA 92521.
Yangyang WangDepartment of Chemistry, University of California, Riverside, CA 92521.
Jacob B HolmesDepartment of Chemistry, University of California, Riverside, CA 92521.
Viktoriia LiuDepartment of Chemistry, University of California, Riverside, CA 92521.
Patricia SkowronekDepartment of Chemistry and Pharmacy, Ludwig Maximilians University, 81377 Munich, Germany.
Laura KukukDepartment of Chemistry and Chemical Biology, TU Dortmund University, 44227 Dortmund, Germany.
Suresh K VasaDepartment of Chemistry and Pharmacy, Ludwig Maximilians University, 81377 Munich, Germany.
Peter GüntertInstitute of Biophysical Chemistry, Goethe University, 60438 Frankfurt am Main, Germany.
Leonard J MuellerDepartment of Chemistry, University of California, Riverside, CA 92521.ORCID 0000-0002-2607-9875
Rasmus LinserDepartment of Chemistry and Pharmacy, Ludwig Maximilians University, 81377 Munich, Germany; rasmus.linser@tu-dortmund.de.ORCID 0000-0001-8983-2935

Funding

Chemically-Rich Structure and Dynamics in the Active Site of Tryptophan SynthaseR01GM097569 · NIGMS · UNIVERSITY OF CALIFORNIA RIVERSIDE · PI MUELLER, LEONARD J · 2011 to 2020
$2.9M
Structural and proton dynamics of pyridoxal-5’-phosphate dependent enzymes Resubmission (Equipment Supplement)R01GM137008 · NIGMS · UNIVERSITY OF GEORGIA · PI KOVALEVSKYI, ANDRII Y, MUELLER, LEONARD J · 2020 to 2023
$2.8M
Acquisition of a Scalable Storage Cluster for Data Intensive NIH ResearchS10OD016290 · OD · UNIVERSITY OF CALIFORNIA RIVERSIDE · PI GIRKE, THOMAS · 2014 to 2014
$593k
NIGMS NIH HHS R01 GM097569NIGMS NIH HHS R01 GM137008NIH HHS S10 OD016290
6 · The paper itself

Abstract

NMR chemical shifts provide detailed information on the chemical properties of molecules, thereby complementing structural data from techniques like X-ray crystallography and electron microscopy. Detailed analysis of protein NMR data, however, often hinges on comprehensive, site-specific assignment of backbone resonances, which becomes a bottleneck for molecular weights beyond 40 to 45 kDa. Here, we show that assignments for the (2x)72-kDa protein tryptophan synthase (665 amino acids per asymmetric unit) can be achieved via higher-dimensional, proton-detected, solid-state NMR using a single, 1-mg, uniformly labeled, microcrystalline sample. This framework grants access to atom-specific characterization of chemical properties and relaxation for the backbone and side chains, including those residues important for the catalytic turnover. Combined with first-principles calculations, the chemical shifts in the β-subunit active site suggest a connection between active-site chemistry, the electrostatic environment, and catalytically important dynamics of the portal to the β-subunit from solution.

Indexed as

Crystallography, X-RayModels, MolecularNuclear Magnetic Resonance, BiomolecularProtein ConformationMolecular WeightProtein BindingProtein MultimerizationTryptophan SynthaseTryptophan SynthaseNMR crystallographyPLP-dependent enzymessolid-state NMRtautomerismtryptophan synthase

Identifiers

PMID35058365
PMCPMC8795498

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.