Evidence map›Paper›PMID 34799699›Full record

ArticleNature metabolism2021

Methionine synthase supports tumour tetrahydrofolate pools.

Jonathan M Ghergurovich, Xincheng Xu, Joshua Z Wang, Lifeng Yang, Rolf-Peter Ryseck, Lin Wang, Joshua D Rabinowitz

Open access · greenAbstract read
In one paragraph

Article in Nature metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
9.4field-weighted citation impact, top 1% 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

55 citing papers in PubMed, 74 citations in OpenAlex.

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  11. The role of BCancer & metabolism · 2025
    Article
  12. Article
  13. Article
  14. Novel Method for the Synthesis of Hydroxycobalamin[International journal of molecular sciences · 2025
    Article
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  19. Review
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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

7 authors at 2 institutions in 1 country.

Jonathan M Ghergurovich *Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.ORCID http://orcid.org/0000-0002-6565-2275
Xincheng Xu *Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.
Joshua Z Wang *Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.ORCID http://orcid.org/0000-0003-0319-8967
Lifeng YangLewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.
Rolf-Peter RyseckLewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.
Lin WangLewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.ORCID http://orcid.org/0000-0002-9370-6891
Joshua D RabinowitzLewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA. joshr@princeton.edu.ORCID http://orcid.org/0000-0002-1247-4727
Princeton University · USChildren's Hospital of Philadelphia · US

Funding

Tumor cell metabolism in actionR01CA163591 · NCI · RUTGERS, THE STATE UNIV OF N.J. · PI JOSHUA D RABINOWITZ, Eileen P. White · 2012 to 2026
$7.0M
Metabolism in Action: Quantitative Fluxes in MammalsDP1DK113643 · NIDDK · PRINCETON UNIVERSITY · PI RABINOWITZ, JOSHUA D · 2016 to 2020
$5.7M
NCI NIH HHS R01 CA163591NIDDK NIH HHS DP1 DK113643
6 · The paper itself

Abstract

Mammalian cells require activated folates to generate nucleotides for growth and division. The most abundant circulating folate species is 5-methyl tetrahydrofolate (5-methyl-THF), which is used to synthesize methionine from homocysteine via the cobalamin-dependent enzyme methionine synthase (MTR). Cobalamin deficiency traps folates as 5-methyl-THF. Here, we show using isotope tracing that MTR is only a minor source of methionine in cell culture, tissues or xenografted tumours. Instead, MTR is required for cells to avoid folate trapping and assimilate 5-methyl-THF into other folate species. Under conditions of physiological extracellular folates, genetic MTR knockout in tumour cells leads to folate trapping, purine synthesis stalling, nucleotide depletion and impaired growth in cell culture and as xenografts. These defects are rescued by free folate but not one-carbon unit supplementation. Thus, MTR plays a crucial role in liberating THF for use in one-carbon metabolism.

Indexed as

5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseCell Line, TumorCell ProliferationFolic AcidGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticHumansMetabolic Networks and PathwaysMethionineMethylationMutationNeoplasmsPurinesTetrahydrofolatesVitamin B 12 Deficiency5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseFolic AcidMethionineMTR protein, humanpurinePurinesTetrahydrofolates

Identifiers

PMID34799699
PMCPMC9284419
OpenAlexW3214360707

What OpenQuestion holds

Textmetadata
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.