Evidence map›Paper›PMID 34517185›Full record

ArticleRedox biology2021

Mitochondrial contact site and cristae organizing system (MICOS) machinery supports heme biosynthesis by enabling optimal performance of ferrochelatase.

Jonathan V Dietz, Mathilda M Willoughby, Robert B Piel, Teresa A Ross, Iryna Bohovych, Hannah G Addis, Jennifer L Fox, William N Lanzilotta, Harry A Dailey, James A Wohlschlegel and 3 more

Open access · goldAbstract read
In one paragraph

Article in Redox biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

24 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. An extended network for regulation of heme homeostasis in cells.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Molecular machineries shaping the mitochondrial inner membrane.Nature reviews. Molecular cell biology · 2025
    Review
  6. Mechanisms of heme transport in the mitochondria.Biochemical Society transactions · 2025
    Review
  7. Review
  8. Review
  9. Article
  10. Fluorometric Methods to Measure Bioavailable and Total Heme.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  11. Article
  12. Article
  13. Mitochondrial heterogeneity in diseases.Signal transduction and targeted therapy · 2023
    Review
  14. Applications of the Whole-Cell System in the Efficient Biosynthesis of Heme.International journal of molecular sciences · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. Structural aspects of enzymes involved in prokaryotic Gram-positive heme biosynthesis.Computational and structural biotechnology journal · 2023
    Review
  19. Review
  20. Molecular Mechanisms of Iron and Heme Metabolism.Annual review of nutrition · 2022
    Review
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

13 authors at 5 institutions in 1 country.

Jonathan V DietzDepartment of Biochemistry, University of Nebraska, Lincoln, NE, 68588, USA.
Mathilda M WilloughbySchool of Chemistry and Biochemistry and School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Parker Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
Robert B PielDepartment of Biochemistry and Molecular Biology, University of Georgia, Athens, GA, 30602, USA.
Teresa A RossDepartment of Biochemistry and Molecular Biology, University of Georgia, Athens, GA, 30602, USA.
Iryna BohovychDepartment of Biochemistry, University of Nebraska, Lincoln, NE, 68588, USA.
Hannah G AddisDepartment of Chemistry and Biochemistry, College of Charleston, Charleston, SC, 29424, USA.
Jennifer L FoxDepartment of Chemistry and Biochemistry, College of Charleston, Charleston, SC, 29424, USA.
William N LanzilottaDepartment of Biochemistry and Molecular Biology, University of Georgia, Athens, GA, 30602, USA.
Harry A DaileyDepartment of Biochemistry and Molecular Biology, University of Georgia, Athens, GA, 30602, USA; Department of Microbiology, University of Georgia, Athens, GA, 30602, USA.
James A WohlschlegelDepartment of Biological Chemistry, University of California, Los Angeles, CA, 90095, USA.
Amit R ReddiSchool of Chemistry and Biochemistry and School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Parker Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
Amy E MedlockDepartment of Biochemistry and Molecular Biology, University of Georgia, Athens, GA, 30602, USA; Augusta University/University of Georgia Medical Partnership, Athens, GA, 30602, USA.
Oleh KhalimonchukDepartment of Biochemistry, University of Nebraska, Lincoln, NE, 68588, USA; Nebraska Redox Biology Center, University of Nebraska, Lincoln, NE, 68588, USA; Fred & Pamela Buffett Cancer Center, Omaha, NE, 68198, USA. Electronic address: okhalimonchuk2@unl.edu.
University of Georgia · USUniversity of Nebraska–Lincoln · USCollege of Charleston · USGeorgia Institute of Technology · USUniversity of California, Los Angeles · US

Funding

Proteolytic Control of Iron Metabolism by the Ubiquitin Ligase FBXL5R01GM089778 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI WOHLSCHLEGEL, JAMES AKIRA · 2010 to 2023
$4.0M
Mitochondrial Fidelity and HomeostasisR35GM131701 · NIGMS · UNIVERSITY OF NEBRASKA LINCOLN · PI Oleh Khalimonchuk · 2019 to 2026
$2.4M
Imaging heme based mitochondrial-cell signaling networks in cell and animal modelR33ES025661 · NIEHS · GEORGIA INSTITUTE OF TECHNOLOGY · PI REDDI, AMIT RAM · 2017 to 2019
$1.7M
A Conserved Metalloprotease Required for Mitochondrial Maintenance and ProtectionR01GM108975 · NIGMS · UNIVERSITY OF NEBRASKA LINCOLN · PI KHALIMONCHUK, OLEH · 2014 to 2018
$1.4M
Molecular Mechanisms of DiseaseT32GM107001 · NIGMS · UNIVERSITY OF NEBRASKA LINCOLN · PI BECKER, DONALD F, BLACK, PAUL N. · 2015 to 2019
$1.0M
NIEHS NIH HHS R33 ES025661NIGMS NIH HHS R01 GM089778NIGMS NIH HHS R01 GM108975NIGMS NIH HHS R35 GM131701NIGMS NIH HHS T32 GM107001
6 · The paper itself

Abstract

Heme is an essential cofactor required for a plethora of cellular processes in eukaryotes. In metazoans the heme biosynthetic pathway is typically partitioned between the cytosol and mitochondria, with the first and final steps taking place in the mitochondrion. The pathway has been extensively studied and its biosynthetic enzymes structurally characterized to varying extents. Nevertheless, understanding of the regulation of heme synthesis and factors that influence this process in metazoans remains incomplete. Therefore, we investigated the molecular organization as well as the physical and genetic interactions of the terminal pathway enzyme, ferrochelatase (Hem15), in the yeast Saccharomyces cerevisiae. Biochemical and genetic analyses revealed dynamic association of Hem15 with Mic60, a core component of the mitochondrial contact site and cristae organizing system (MICOS). Loss of MICOS negatively impacts Hem15 activity, affects the size of the Hem15 high-mass complex, and results in accumulation of reactive and potentially toxic tetrapyrrole precursors that may cause oxidative damage. Restoring intermembrane connectivity in MICOS-deficient cells mitigates these cytotoxic effects. These data provide new insights into how heme biosynthetic machinery is organized and regulated, linking mitochondrial architecture-organizing factors to heme homeostasis.

Indexed as

FerrochelataseMitochondrial ProteinsHemeMitochondriaMitochondrial MembranesFerrochelataseHemeMitochondrial ProteinsFerrochelataseHemeMICOSMitochondriaYeast

Identifiers

PMID34517185
PMCPMC8441213
OpenAlexW3198361073

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.