Evidence map›Paper›PMID 38172624›Full record

ArticleNature microbiology2024

BilR is a gut microbial enzyme that reduces bilirubin to urobilinogen.

Brantley Hall, Sophia Levy, Keith Dufault-Thompson, Gabriela Arp, Aoshu Zhong, Glory Minabou Ndjite, Ashley Weiss, Domenick Braccia, Conor Jenkins, Maggie R Grant and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Nature microbiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
104.3field-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

49 citing papers in PubMed, 56 citations in OpenAlex.

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  13. Deconvolving Phylogenetic Distance Mixtures.bioRxiv : the preprint server for biology · 2026
    Article
  14. Disrupted terminal bilirubin catabolism linksFrontiers in microbiology · 2026
    Article
  15. Article
  16. Review
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  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 4 institutions in 1 country.

Brantley HallDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, College Park, MD, USA. brantley@umd.edu.ORCID 0000-0001-7553-8209
Sophia LevyDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, College Park, MD, USA.ORCID 0009-0003-8055-3202
Keith Dufault-ThompsonNational Library of Medicine, National Institutes of Health, Bethesda, MD, USA.ORCID 0000-0002-0991-2255
Gabriela ArpDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, College Park, MD, USA.ORCID 0009-0004-3819-5648
Aoshu ZhongDivision of Molecular and Cellular Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA.ORCID 0000-0002-5793-3990
Glory Minabou NdjiteDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, College Park, MD, USA.
Ashley WeissDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, College Park, MD, USA.
Domenick BracciaCenter for Bioinformatics and Computational Biology, University of Maryland, College Park, College Park, MD, USA.
Conor JenkinsDepartment of Chemistry and Biochemistry, University of Maryland, College Park, MD, USA.ORCID 0000-0002-2333-9184
Maggie R GrantDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, College Park, MD, USA.ORCID 0000-0003-2607-9493
Stephenie AbeysingheDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, College Park, MD, USA.
Yiyan YangNational Library of Medicine, National Institutes of Health, Bethesda, MD, USA.
Madison D JermainDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, College Park, MD, USA.ORCID 0009-0005-1979-5426
Chih Hao WuProgram of Computational Biology, Bioinformatics, and Genomics, University of Maryland, College Park, MD, USA.
Bing MaInstitute for Genome Sciences, Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA.ORCID 0000-0002-3488-2393
Xiaofang JiangNational Library of Medicine, National Institutes of Health, Bethesda, MD, USA. xiaofang.jiang@nih.gov.ORCID 0000-0002-0955-8284
University of Maryland, College Park · USNational Institutes of Health · USEunice Kennedy Shriver National Institute of Child Health and Human Development · USUniversity of Maryland, Baltimore · US

Funding

Proteomics CoreU54DK110858 · NIDDK · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI Anna E Beaudin, JAMES Eric COX · 2016 to 2026
$8.6M
Comparative genomic analysis of bacteria speciesZIALM202010 · NLM · NATIONAL LIBRARY OF MEDICINE · PI JIANG, XIAOFANG · 2020 to 2025
$6.9M
Training in Host-pathogens interactionsT32AI089621 · NIAID · UNIV OF MARYLAND, COLLEGE PARK · PI LEE, VINCENT T, MCIVER, KEVIN S. · 2010 to 2025
$2.1M
NIDDK NIH HHS U54 DK110858
6 · The paper itself

Abstract

Metabolism of haem by-products such as bilirubin by humans and their gut microbiota is essential to human health, as excess serum bilirubin can cause jaundice and even neurological damage. The bacterial enzymes that reduce bilirubin to urobilinogen, a key step in this pathway, have remained unidentified. Here we used biochemical analyses and comparative genomics to identify BilR as a gut-microbiota-derived bilirubin reductase that reduces bilirubin to urobilinogen. We delineated the BilR sequences from similar reductases through the identification of key residues critical for bilirubin reduction and found that BilR is predominantly encoded by Firmicutes species. Analysis of human gut metagenomes revealed that BilR is nearly ubiquitous in healthy adults, but prevalence is decreased in neonates and individuals with inflammatory bowel disease. This discovery sheds light on the role of the gut microbiome in bilirubin metabolism and highlights the significance of the gut-liver axis in maintaining bilirubin homeostasis.

Indexed as

BilirubinGastrointestinal MicrobiomeAdultBacteriaHumansInfant, NewbornLiverUrobilinogenBilirubinUrobilinogen

Identifiers

PMID38172624
PMCPMC10769871
OpenAlexW4390571178

What OpenQuestion holds

Textmetadata
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.