Evidence map›Paper›PMID 19490124›Full record

ArticleThe FEBS journal2009

Structural basis for the erythro-stereospecificity of the L-arginine oxygenase VioC in viomycin biosynthesis.

Verena Helmetag, Stefan A Samel, Michael G Thomas, Mohamed A Marahiel, Lars-Oliver Essen

Open access · bronzeAbstract read
In one paragraph

Article in The FEBS journal, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

34 citing papers in PubMed, 70 citations in OpenAlex.

  1. Discovery and Biosynthesis of the Novel Glycotetrapeptide Antibiotic Biffamycin A.Angewandte Chemie (International ed. in English) · 2026
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  13. The Desotamide Family of Antibiotics.Antibiotics (Basel, Switzerland) · 2020
    Review
  14. Article
  15. Article
  16. Genomic analysis of siderophore β-hydroxylases reveals divergent stereocontrol and expands the condensation domain family.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  17. Article
  18. 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

5 authors at 2 institutions in 2 countries.

Verena HelmetagDepartment of Chemistry, Philipps-University Marburg, Germany.
Stefan A Samel
Michael G Thomas
Mohamed A Marahiel
Lars-Oliver Essen
Philipps University of Marburg · DEUniversity of Wisconsin–Madison · US

Funding

Discovering New Anti-Tuberculosis DrugsR01AI065850 · NIAID · UNIVERSITY OF WISCONSIN-MADISON · PI THOMAS, MICHAEL GEORGE · 2006 to 2010
$1.5M
NIAID NIH HHS AI065850NIAID NIH HHS R01 AI065850
6 · The paper itself

Abstract

The nonheme iron oxygenase VioC from Streptomyces vinaceus catalyzes Fe(II)-dependent and alpha-ketoglutarate-dependent Cbeta-hydroxylation of L-arginine during the biosynthesis of the tuberactinomycin antibiotic viomycin. Crystal structures of VioC were determined in complexes with the cofactor Fe(II), the substrate L-arginine, the product (2S,3S)-hydroxyarginine and the coproduct succinate at 1.1-1.3 A resolution. The overall structure reveals a beta-helix core fold with two additional helical subdomains that are common to nonheme iron oxygenases of the clavaminic acid synthase-like superfamily. In contrast to other clavaminic acid synthase-like oxygenases, which catalyze the formation of threo diastereomers, VioC produces the erythro diastereomer of Cbeta-hydroxylated L-arginine. This unexpected stereospecificity is caused by conformational control of the bound substrate, which enforces a gauche(-) conformer for chi(1) instead of the trans conformers observed for the asparagine oxygenase AsnO and other members of the clavaminic acid synthase-like superfamily. Additionally, the substrate specificity of VioC was investigated. The side chain of the L-arginine substrate projects outwards from the active site by undergoing interactions mainly with the C-terminal helical subdomain. Accordingly, VioC exerts broadened substrate specificity by accepting the analogs L-homoarginine and L-canavanine for Cbeta-hydroxylation.

Indexed as

Protein Structure, TertiaryAnti-Bacterial AgentsArginineBacterial ProteinsCatalytic DomainCrystallography, X-RayModels, MolecularMolecular Sequence DataMolecular StructureNonheme Iron ProteinsOxygenasesProtein Structure, SecondaryStereoisomerismStreptomycesSubstrate SpecificityViomycinAnti-Bacterial AgentsArginineBacterial ProteinsNonheme Iron ProteinsOxygenasesvioC protein, Chromobacterium violaceumViomycin

Identifiers

PMID19490124
PMCPMC2771579
OpenAlexW1880598511

What OpenQuestion holds

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LicenceTDM
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.