Evidence map›Paper›PMID 34035176›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Unravelling the mechanisms controlling heme supply and demand.

Galvin C-H Leung, Simon S-P Fung, Andrea E Gallio, Robert Blore, Dominic Alibhai, Emma L Raven, Andrew J Hudson

Open access · hybridAbstract readEvaluation Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

20 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Key roles of GAPDH, Hsp90, and NO in heme trafficking.Journal of inorganic biochemistry · 2026
    Review
  5. 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
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Applications of the Whole-Cell System in the Efficient Biosynthesis of Heme.International journal of molecular sciences · 2023
    Review
  12. Review
  13. Article
  14. Heme sensing and trafficking in fungi.Fungal biology reviews · 2023
    Article
  15. Review
  16. Article
  17. A Chemical Proteomic Map of Heme-Protein Interactions.Journal of the American Chemical Society · 2022
    Article
  18. Regulation of protein function and degradation by heme, heme responsive motifs, and CO.Critical reviews in biochemistry and molecular biology · 2022
    Review
  19. Review
  20. Article
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.

Galvin C-H LeungSchool of Chemistry, University of Leicester, LE1 7RH Leicester, United Kingdom.
Simon S-P FungSchool of Chemistry, University of Leicester, LE1 7RH Leicester, United Kingdom.ORCID 0000-0003-0789-7765
Andrea E GallioSchool of Chemistry, University of Bristol, BS8 1TS Bristol, United Kingdom.ORCID 0000-0003-3094-681X
Robert BloreSchool of Chemistry, University of Leicester, LE1 7RH Leicester, United Kingdom.
Dominic AlibhaiWolfson Bioimaging Facility, Faculty of Life Sciences, University of Bristol, BS8 1TD Bristol, United Kingdom.ORCID 0000-0001-5421-4424
Emma L RavenSchool of Chemistry, University of Bristol, BS8 1TS Bristol, United Kingdom; emma.raven@bristol.ac.uk andrew.hudson@leicester.ac.uk.ORCID 0000-0002-1643-8694
Andrew J HudsonSchool of Chemistry, University of Leicester, LE1 7RH Leicester, United Kingdom; emma.raven@bristol.ac.uk andrew.hudson@leicester.ac.uk.ORCID 0000-0003-1849-9666
University of Leicester · GBUniversity of Bristol · GB

Funding

Biotechnology and Biological Sciences Research Council BB/L01386X/1
6 · The paper itself

Abstract

In addition to heme's role as the prosthetic group buried inside many different proteins that are ubiquitous in biology, there is new evidence that heme has substantive roles in cellular signaling and regulation. This means that heme must be available in locations distant from its place of synthesis (mitochondria) in response to transient cellular demands. A longstanding question has been to establish the mechanisms that control the supply and demand for cellular heme. By fusing a monomeric heme-binding peroxidase (ascorbate peroxidase, mAPX) to a monomeric form of green-fluorescent protein (mEGFP), we have developed a heme sensor (mAPXmEGFP) that can respond to heme availability. By means of fluorescence lifetime imaging, this heme sensor can be used to quantify heme concentrations; values of the mean fluorescence lifetime (τ

Indexed as

Molecular Probe TechniquesAscorbate PeroxidasesEscherichia coliGreen Fluorescent ProteinsHemeAscorbate PeroxidasesGreen Fluorescent ProteinsHemebiosensingfluorescence lifetime imagingheme biology

Identifiers

PMID34035176
PMCPMC8179208
OpenAlexW3165621829

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.