Cited by 80Redox biology and oxidative stressErythrocyte Function and PathophysiologyLipid Membrane Structure and Behavior

Membrane association of peroxiredoxin-2 in red cells is mediated by the N-terminal cytoplasmic domain of band 3

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Matte, Alessandro, Bertoldi, Mariarita, Mohandas, Narla, An, Xiuli, Bugatti, Antonella, Brunati, Anna Maria, Rusnati, Marco, Tibaldi, Elena +4 more·2013·Free Radical Biology and Medicine

Abstract

Band 3 (B3), the anion transporter, is an integral membrane protein that plays a key structural role by anchoring the plasma membrane to the spectrin-based membrane skeleton in the red cell. In addition, it also plays a critical role in the assembly of glycolytic enzymes to regulate red cell metabolism. However, its ability to recruit proteins that can prevent membrane oxidation has not been previously explored. In this study, using a variety of experimental approaches including cross-linking studies, fluorescence and dichroic measurements, surface plasmon resonance analysis, and proteolytic digestion assays, we document that the antioxidant protein peroxiredoxin-2 (PRDX2), the third most abundant cytoplasmic protein in RBCs, interacts with the cytoplasmic domain of B3. The surface electrostatic potential analysis and stoichiometry measurements revealed that the N-terminal peptide of B3 is involved in the interaction. PRDX2 underwent a conformational change upon its binding to B3 without losing its peroxidase activity. Hemichrome formation induced by phenylhydrazine of RBCs prevented membrane association of PRDX2, implying overlapping binding sites. Documentation of the absence of binding of PRDX2 to B3 Neapolis red cell membranes, in which the initial N-terminal 11 amino acids are deleted, enabled us to conclude that PRDX2 binds to the N-terminal cytoplasmic domain of B3 and that the first 11 amino acids of this domain are crucial for PRDX2 membrane association in intact RBCs. These findings imply yet another important role for B3 in regulating red cell membrane function.

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Crossref · 10.1016/j.freeradbiomed.2012.10.543

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  • The association of Prx2 with the membrane makes it important for protection of RBC membrane constituents against lipid peroxidation.

    “The association of Prx2 (which participates in reduction of organic peroxides, Eq. 13) with the membrane (120) makes it important for protection of RBC membrane constituents against lipid peroxidation.”

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Authors
Matte, A., Bertoldi, M., Mohandas, N., An, X., Bugatti, A., Brunati, A. M., Rusnati, M., Tibaldi, E., Siciliano, A., Turrini, F., Perrotta, S., & De Franceschi, L.
Affiliations
  • University of Verona (IT)
  • New York Blood Center (US)
  • University of Brescia (IT)
  • University of Padua (IT)
  • University of Turin (IT)
  • University of Campania "Luigi Vanvitelli" (IT)
Corresponding author
Bertoldi, Mariarita
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2013-02
Volume
55
Pages
27-35
ISSN
0891-5849 (ISSN-L)
OpenAlex
W2053557848
Cited by
80
References
45
Citations by year
2026: 3 · 2025: 2 · 2024: 5 · 2023: 7 · 2022: 4 · 2021: 8 · 2020: 9 · 2019: 6 · 2018: 4 · 2017: 11 · 2016: 5 · 2015: 7 · 2014: 5 · 2013: 4
FWCI
2.06
Type
journal article
Language
en
Open access
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Research Information System (Università degli Studi di Brescia) (submittedVersion, other-oa)
  • Archivio Istituzionale della Ricerca - Università degli Studi della Campania "Luigi Vanvitelli" (submittedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion)
Funders
  • University of Verona, to M.B. and L.D.F., PRIN 2008 to L.D.F., and Ministero Istruzione Università e Ricerca, Istituto Superiore di Sanità (AIDS Project) (FUR2010-2011)
  • CARIPLO (2008–2198)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Physiology › Erythrocyte Function and Pathophysiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
Keywords
peroxiredoxin 2, band 3, erythrocytes, protein-protein interaction, membrane association, anion transporters, membrane oxidation, antioxidant proteins, hemichrome, phenylhydrazine, protein conformational change
MeSH terms
Cytoplasm, Erythrocyte Membrane, Erythrocytes, Humans, Peroxiredoxins

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