Evidence map›Paper›PMID 31381301›Full record

ArticleAccounts of chemical research2019

Exploring Iron Withholding by the Innate Immune Protein Human Calprotectin.

Emily M Zygiel, Elizabeth M Nolan

Open access · greenAbstract read
In one paragraph

Article in Accounts of chemical research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

23 citing papers in PubMed, 26 citations in OpenAlex.

  1. Plants (Basel, Switzerland) · 2026
    Article
  2. Article
  3. The innate immune protein calprotectin ablates the bactericidal activity of β-lactam antibiotics.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Imaging-Selected Host Responses in the Context of Infections.The Journal of infectious diseases · 2023
    Article
  11. Post-translational modifications on the metal-sequestering protein calprotectin.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2023
    Review
  12. Steric Effects on the Chelation of MnChemistry (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. 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

2 authors at 1 institution in 1 country.

Emily M ZygielDepartment of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States.
Elizabeth M NolanDepartment of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States.ORCID 0000-0002-6153-8803
Massachusetts Institute of Technology · US

Funding

Signaling Pathways in Innate ImmunityT32AI095190 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI Stefanie N. Vogel · 2012 to 2026
$4.7M
Metallobiochemistry of innate immunity and bacterial physiologyR01GM126376 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI NOLAN, ELIZABETH M, OGLESBY, AMANDA GAIL · 2017 to 2024
$2.4M
Bioinorganic Explorations of Host-Defense ProteinsR01GM118695 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI NOLAN, ELIZABETH M · 2017 to 2025
$2.3M
NIAID NIH HHS T32 AI095190NIGMS NIH HHS R01 GM118695NIGMS NIH HHS R01 GM126376
6 · The paper itself

Abstract

Calprotectin (CP) is a versatile player in the metal-withholding innate immune response, a process termed "nutritional immunity." CP is a heterooligomer of the polypeptides S100A8 and S100A9 and houses two transition-metal-binding sites at its S100A8/S100A9 heterodimer interface. During infection, CP is released from host cells and sequesters "bioavailable" transition metal ions in the extracellular space, thereby preventing microbial acquisition of these essential nutrients. For many years, the role of CP in nutritional immunity was interpreted in the contexts of Mn(II) and Zn(II) limitation, but recent work has broadened our understanding of its contributions to this process. We uncovered that CP provides a form of nutritional immunity that has previously received little attention: the battle between host and microbe for ferrous iron (Fe(II)). In this Account, we present our current understanding of Fe(II) coordination by CP and its role in Fe(II) withholding as well as considerations for future discovery. Nutritional immunity was first described in the context of host-microbe competition for ferric iron (Fe(III)). The battle for Fe(II) has received comparably little attention because the abundance of Fe(II) at infection sites and the importance of Fe(II) acquisition for microbial pathogenesis were recognized only recently. Several years ago, we discovered that human CP sequesters Fe(II) at its His

Indexed as

AnimalsBacteriaHistidineHumansImmunity, InnateIronIron DeficienciesLeukocyte L1 Antigen ComplexMiceProtein BindingHistidineIronLeukocyte L1 Antigen Complex

Identifiers

PMID31381301
PMCPMC6702060
OpenAlexW2966589986

What OpenQuestion holds

Textmetadata
LicenceTDM
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.