Evidence map›Paper›PMID 33001550›Full record

ArticleEnvironmental microbiology2020

Unravelling lactate-acetate and sugar conversion into butyrate by intestinal Anaerobutyricum and Anaerostipes species by comparative proteogenomics.

Sudarshan A Shetty, Sjef Boeren, Thi P N Bui, Hauke Smidt, Willem M de Vos

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Environmental microbiology, 2020. 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
2.8field-weighted citation impact, top 8% 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, 94 citations in OpenAlex.

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  2. Gut microbes · 2025
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  18. Photobiomodulation Strengthens Muscles via Its Dual Functions in Gut Microbiota.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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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 3 institutions in 2 countries.

Sudarshan A ShettyLaboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands.ORCID 0000-0001-7280-9915
Sjef BoerenLaboratory of Biochemistry, Wageningen University and Research, Wageningen, The Netherlands.
Thi P N BuiLaboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands.
Hauke SmidtLaboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands.
Willem M de VosLaboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands.ORCID 0000-0002-0273-3166
Wageningen University & Research · NLCentrient Pharmaceuticals (Netherlands) · NLUniversity of Helsinki · FI

Funding

Nederlandse Organisatie voor Wetenschappelijk Onderzoek 024.002.002Nederlandse Organisatie voor Wetenschappelijk Onderzoek NRGWI.obrug.2018.005
6 · The paper itself

Abstract

The d- and l-forms of lactate are important fermentation metabolites produced by intestinal bacteria but are found to negatively affect mucosal barrier function and human health. Both enantiomers of lactate can be converted with acetate into the presumed beneficial butyrate by a phylogenetically related group of anaerobes, including Anaerobutyricum and Anaerostipes spp. This is a low energy yielding process with a partially unknown pathway in Anaerobutyricum and Anaerostipes spp. and hence, we sought to address this via a comparative genomics, proteomics and physiology approach. We compared growth of Anaerobutyricum soehngenii on lactate with that on sucrose and sorbitol. Comparative proteomics revealed complete pathway of butyrate formation from sucrose, sorbitol and lactate. Notably, a gene cluster, lctABCDEF was abundantly expressed when grown on lactate. This gene cluster encodes a lactate dehydrogenase (lctD), electron transport proteins A and B (lctCB), nickel-dependent racemase (lctE), lactate permease (lctF) and short-chain acyl-CoA dehydrogenase (lctG). Investigation of available genomes of intestinal bacteria revealed this new gene cluster to be highly conserved in only Anaerobutyricum and Anaerostipes spp. Present study demonstrates that A. soehngenii and several related Anaerobutyricum and Anaerostipes spp. are highly adapted for a lifestyle involving lactate plus acetate utilization in the human intestinal tract.

Indexed as

AcetatesBacterial ProteinsButyratesEubacterialesFermentationHumansIntestinesLactic AcidMultigene FamilyPhylogenyProteogenomicsSugarsAcetatesBacterial ProteinsButyratesLactic AcidSugars

Identifiers

PMID33001550
PMCPMC7702098
OpenAlexW3089551412

What OpenQuestion holds

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LicenceCC BY
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.