The mitochondrial proteins Atm1p and Nfs1p are essential for biogenesis of cytosolic Fe/S proteins

G. Kispál, Peter Csere, Corinna Prohl, Roland Lill

Research output: Contribution to journalArticle

519 Citations (Scopus)

Abstract

Iron-sulfur (Fe/S) cluster-containing proteins catalyse a number of electron transfer and metabolic reactions. Little is known about the biogenesis of Fe/S clusters in the eukaryotic cell. Here, we demonstrate that mitochondria perform an essential role in the synthesis of both intra- and extra-mitochondrial Fe/S proteins. Nfs1p represents the yeast orthologue of the bacterial cysteine desulfurase NifS that initiates biogenesis by producing elemental sulfur. The matrix-localized protein is required for synthesis of both mitochondrial and cytosolic Fe/S proteins. The ATP-binding cassette (ABC) transporter Atm1p of the mitochondrial inner membrane performs an essential function only in the generation of cytosolic Fe/S proteins by mediating export of Fe/S cluster precursors synthesized by Nfs1p and other mitochondrial proteins. Assembly of cellular Fe/S clusters constitutes an indispensable biosynthetic task of mitochondria with potential relevance for an iron-storage disease and the control of cellular iron uptake.

Original languageEnglish
Pages (from-to)3981-3989
Number of pages9
JournalEMBO Journal
Volume18
Issue number14
DOIs
Publication statusPublished - Jul 15 1999

Fingerprint

Mitochondrial Proteins
Protein S
Mitochondria
Iron
Sulfur
ATP-Binding Cassette Transporters
Hemochromatosis
Mitochondrial Membranes
Eukaryotic Cells
Yeast
Proteins
Yeasts
Electrons
Membranes

Keywords

  • ABC transporter
  • Iron homeostasis
  • Iron-sulfur protein
  • Mitochondria
  • Sideroblastic anemia

ASJC Scopus subject areas

  • Genetics
  • Cell Biology

Cite this

The mitochondrial proteins Atm1p and Nfs1p are essential for biogenesis of cytosolic Fe/S proteins. / Kispál, G.; Csere, Peter; Prohl, Corinna; Lill, Roland.

In: EMBO Journal, Vol. 18, No. 14, 15.07.1999, p. 3981-3989.

Research output: Contribution to journalArticle

Kispál, G. ; Csere, Peter ; Prohl, Corinna ; Lill, Roland. / The mitochondrial proteins Atm1p and Nfs1p are essential for biogenesis of cytosolic Fe/S proteins. In: EMBO Journal. 1999 ; Vol. 18, No. 14. pp. 3981-3989.
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