Evidence map›Paper›PMID 28882204›Full record

ArticleMethods in enzymology2017

TsrM as a Model for Purifying and Characterizing Cobalamin-Dependent Radical S-Adenosylmethionine Methylases.

Anthony J Blaszczyk, Roy X Wang, Squire J Booker

Abstract read
In one paragraph

Article in Methods in enzymology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Review
  2. Structural basis for iterative methylation by a cobalamin-dependent radicalProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Structural Evidence for DUF512 as a RadicalACS bio & med chem Au · 2024
    Article
  7. S-adenosyl-L-methionine is the unexpected methyl donor for the methylation of mercury by the membrane-associated HgcAB complex.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  8. Methyltransferases: Functions and Applications.Chembiochem : a European journal of chemical biology · 2022
    Review
  9. Cobalamin-Dependent RadicalACS bio & med chem Au · 2022
    Review
  10. Article
  11. Heterologous Expression of ActiveApplied and environmental microbiology · 2022
    Article
  12. Structure of a BNature · 2022
    Article
  13. Article
  14. Article
  15. Article
  16. Biomolecules · 2020
    Article
  17. Understanding the role of electron donors in the reaction catalyzed by Tsrm, a cobalamin-dependent radical S-adenosylmethionine methylase.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2019
    Article
  18. Methanogenesis marker protein 10 (Mmp10) fromThe Journal of biological chemistry · 2019
    Article
  19. Article
  20. 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

3 authors.

Anthony J BlaszczykThe Pennsylvania State University, University Park, PA, United States.
Roy X WangThe Pennsylvania State University, University Park, PA, United States.
Squire J BookerThe Pennsylvania State University, University Park, PA, United States; Howard Hughes Medical Institute, The Pennsylvania State University, University Park, PA, United States. Electronic address: squire@psu.edu.

Funding

Radical Mechanisms of Iron-Sulfur ProteinsR35GM122595 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI SQUIRE J. BOOKER · 2017 to 2026
$3.4M
Functionalization of unactivated sp2-hybridized carbon atomsR01GM103268 · NIGMS · PENNSYLVANIA STATE UNIVERSITY, THE · PI BOLLINGER, JOSEPH M, BOOKER, SQUIRE J. · 2012 to 2015
$1.3M
Mechanisms of Radical-Dependent Biological MethylationR01GM101957 · NIGMS · PENNSYLVANIA STATE UNIVERSITY, THE · PI BOOKER, SQUIRE J. · 2012 to 2015
$1.0M
Radical strategies for inhibiting the antibiotic resistance protein, CfrR21AI111419 · NIAID · PENNSYLVANIA STATE UNIVERSITY, THE · PI BOOKER, SQUIRE J., CHEN, GONG · 2014 to 2015
$398k
NIAID NIH HHS R21 AI111419NIGMS NIH HHS R01 GM101957NIGMS NIH HHS R01 GM103268NIGMS NIH HHS R35 GM122595
6 · The paper itself

Abstract

Cobalamin-dependent radical S-adenosylmethionine (SAM) methylases play vital roles in the de novo biosynthesis of many antibiotics, cofactors, and other important natural products, yet remain an understudied subclass of radical SAM enzymes. In addition to a [4Fe-4S] cluster that is ligated by three cysteine residues, these enzymes also contain an N-terminal cobalamin-binding domain. In vitro studies of these enzymes have been severely limited because many are insoluble or sparingly soluble upon their overproduction in Escherichia coli. This solubility issue has led a number of groups either to purify the protein from inclusion bodies or to purify soluble protein that often lacks proper cofactor incorporation. Herein, we use TsrM as a model to describe methods that we have used to generate soluble protein that is purified in an active form with both cobalamin and [4Fe-4S] cluster cofactors bound. Additionally, we highlight the methods that we developed to characterize the enzyme following purification.

Indexed as

Bacterial ProteinsBiocatalysisCoenzymesCysteineEscherichia coliIron-Sulfur ProteinsMethylationMethyltransferasesProtein BindingS-AdenosylmethionineSmall Ubiquitin-Related Modifier ProteinsTryptophanVitamin B 12Bacterial ProteinsCoenzymesCysteineIron-Sulfur ProteinsMethyltransferasesS-AdenosylmethionineSmall Ubiquitin-Related Modifier ProteinsTryptophanVitamin B 122-MethyltryptophanElectron paramagnetic resonance spectroscopyIron–sulfur clusterMethylaseMethylcobalaminRadicalS-AdenosylmethionineSUMOTryptophan

Identifiers

PMID28882204
PMCPMC5941296

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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.