Cited by 1,422Iron Metabolism and DisordersTrace Elements in HealthNeurological diseases and metabolism

The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.

A Novel Duodenal Iron-Regulated Transporter, IREG1, Implicated in the Basolateral Transfer of Iron to the Circulation

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Abstract

Iron absorption by the duodenal mucosa is initiated by uptake of ferrous Fe(II) iron across the brush border membrane and culminates in transfer of the metal across the basolateral membrane to the portal vein circulation by an unknown mechanism. We describe here the isolation and characterization of a novel cDNA (Ireg1) encoding a duodenal protein that is localized to the basolateral membrane of polarized epithelial cells. Ireg1 mRNA and protein expression are increased under conditions of increased iron absorption, and the 5' UTR of the Ireg1 mRNA contains a functional iron-responsive element (IRE). IREG1 stimulates iron efflux following expression in Xenopus oocytes. We conclude that IREG1 represents the long-sought duodenal iron export protein and is upregulated in the iron overload disease, hereditary hemochromatosis.

Overview

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Crossref · 10.1016/s1097-2765(00)80425-6

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Research works printed but not linked: 1

  1. Umbreit, 1998, Iron absorption and cellular transport, Semin. Hematol., 35, 13

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Metadata

Authors
McKie, A. T., Marciani, P., Rolfs, A., Brennan, K., Wehr, K., Barrow, D., Miret, S., Bomford, A., Peters, T. J., Farzaneh, F., Hediger, M. A., Hentze, M. W., & Simpson, R. J.
Affiliations
  • King's College London (GB)
  • Brigham and Women's Hospital (US)
  • European Molecular Biology Laboratory (DE)
  • Universitat de Barcelona (ES)
Corresponding author
McKie, Andrew T
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2000-02
Volume
5
Issue
2
Pages
299-309
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2143900678
Cited by
1,422
References
41
Citations by year
2026: 13 · 2025: 16 · 2024: 30 · 2023: 32 · 2022: 34 · 2021: 50 · 2020: 41 · 2019: 42 · 2018: 43 · 2017: 43 · 2016: 42 · 2015: 48 · 2014: 66 · 2013: 58 · 2012: 47
FWCI
41.64
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
CYTED Ciencia y Tecnología para el Desarrollo
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
Keywords
iron absorption, iron-responsive element, iron overload, hereditary hemochromatosis, iron efflux, duodenal epithelial cells, cDNA cloning, iron homeostasis
MeSH terms
Ferroportin, Amino Acid Sequence, Animals, Base Sequence, Biological Transport, Carrier Proteins, Cell Compartmentation, Cloning, Molecular, Duodenum, Ferric Compounds, Gene Expression Regulation, Intestinal Absorption, Intestinal Mucosa, Iron, Membrane Proteins, Models, Biological, Molecular Sequence Data, Portal Vein, RNA, Messenger, Sequence Homology, Nucleic Acid, Transferrin, Cell Polarity, Sequence Homology, Amino Acid, Response Elements, Cation Transport Proteins, Mice

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