Evidence map›Paper›PMID 14645276›Full record

ArticleJournal of bacteriology2003

Formaldehyde-detoxifying role of the tetrahydromethanopterin-linked pathway in Methylobacterium extorquens AM1.

Christopher J Marx, Ludmila Chistoserdova, Mary E Lidstrom

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
3.3field-weighted citation impact, top 9% 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

67 citing papers in PubMed, 134 citations in OpenAlex.

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7 more citing papers are in PubMed but not listed here.

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 at 1 institution in 1 country.

Christopher J MarxDepartment of Microbiology, University of Washington, Seattle, Washington 98195, USA.
Ludmila Chistoserdova
Mary E Lidstrom
University of Washington · US

Funding

REGULATION OF C1 METABOLISM IN METHYLOTROPHSR01GM036296 · NIGMS · UNIVERSITY OF WISCONSIN MILWAUKEE · PI LIDSTROM, MARY E · 1985 to 2007
$1.7M
NIGMS NIH HHS GM 36296NIGMS NIH HHS R01 GM036296
6 · The paper itself

Abstract

The facultative methylotroph Methylobacterium extorquens AM1 possesses two pterin-dependent pathways for C(1) transfer between formaldehyde and formate, the tetrahydrofolate (H(4)F)-linked pathway and the tetrahydromethanopterin (H(4)MPT)-linked pathway. Both pathways are required for growth on C(1) substrates; however, mutants defective for the H(4)MPT pathway reveal a unique phenotype of being inhibited by methanol during growth on multicarbon compounds such as succinate. It has been previously proposed that this methanol-sensitive phenotype is due to the inability to effectively detoxify formaldehyde produced from methanol. Here we present a comparative physiological characterization of four mutants defective in the H(4)MPT pathway and place them into three different phenotypic classes that are concordant with the biochemical roles of the respective enzymes. We demonstrate that the analogous H(4)F pathway present in M. extorquens AM1 cannot fulfill the formaldehyde detoxification function, while a heterologously expressed pathway linked to glutathione and NAD(+) can successfully substitute for the H(4)MPT pathway. Additionally, null mutants were generated in genes previously thought to be essential, indicating that the H(4)MPT pathway is not absolutely required during growth on multicarbon compounds. These results define the role of the H(4)MPT pathway as the primary formaldehyde oxidation and detoxification pathway in M. extorquens AM1.

Indexed as

CarbonFormaldehydeGene Expression Regulation, BacterialGene Expression Regulation, EnzymologicGlutathioneMethanolMethylobacterium extorquensMutationOxidation-ReductionOxidoreductases Acting on CH-NH Group DonorsPhenotypePterins5,6,7,8-tetrahydromethanopterinCarbonFormaldehydeGlutathioneMethanolmethylenetetrahydromethanopterin dehydrogenaseOxidoreductases Acting on CH-NH Group DonorsPterins

Identifiers

PMID14645276
PMCPMC296243
OpenAlexW2169659184

What OpenQuestion holds

Textmetadata
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.