A57Fe Mössbauer study of iron assimilation in N. crassa mediated by siderophores

B. F. Matzanke; E. Bill; G. Winkelmann; A. X. Trautwein

doi:10.1007/BF02399499

A57Fe Mössbauer study of iron assimilation in N. crassa mediated by siderophores

B. F. Matzanke^*, E. Bill, G. Winkelmann, A. X. Trautwein

^*Corresponding author for this work

Institute of Physics

2 Citations (Scopus)

Abstract

The siderophore coprogen is tansported in N. crassa as an entity. Neither ligand exchange nor reduction is a rate limiting step for intracellular accumulation. Metabolized iron was found predominantly to exist as fast relaxing Fe(II) high-spin (σ=1.32 mm/s, ΔE_Q=2.95 mm/s) and Fe(III) high-spin species (δ=0.35-0.42 mm/s ΔE_Q=0.5-0.58 mm/s). Within 27 hours, no measurable amounts of iron are transferred to ferritin like storage forms. Rather, coprogen itself serves as an intermediate iron storage compound.

Original language	English
Journal	Hyperfine Interactions
Volume	29
Issue number	1-4
Pages (from-to)	1415-1418
Number of pages	4
ISSN	0304-3843
DOIs	https://doi.org/10.1007/BF02399499
Publication status	Published - 01.02.1986

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title = "A57Fe M{\"o}ssbauer study of iron assimilation in N. crassa mediated by siderophores",

abstract = "The siderophore coprogen is tansported in N. crassa as an entity. Neither ligand exchange nor reduction is a rate limiting step for intracellular accumulation. Metabolized iron was found predominantly to exist as fast relaxing Fe(II) high-spin (σ=1.32 mm/s, ΔEQ=2.95 mm/s) and Fe(III) high-spin species (δ=0.35-0.42 mm/s ΔEQ=0.5-0.58 mm/s). Within 27 hours, no measurable amounts of iron are transferred to ferritin like storage forms. Rather, coprogen itself serves as an intermediate iron storage compound.",

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AU - Matzanke, B. F.

AU - Bill, E.

AU - Winkelmann, G.

AU - Trautwein, A. X.

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N2 - The siderophore coprogen is tansported in N. crassa as an entity. Neither ligand exchange nor reduction is a rate limiting step for intracellular accumulation. Metabolized iron was found predominantly to exist as fast relaxing Fe(II) high-spin (σ=1.32 mm/s, ΔEQ=2.95 mm/s) and Fe(III) high-spin species (δ=0.35-0.42 mm/s ΔEQ=0.5-0.58 mm/s). Within 27 hours, no measurable amounts of iron are transferred to ferritin like storage forms. Rather, coprogen itself serves as an intermediate iron storage compound.

AB - The siderophore coprogen is tansported in N. crassa as an entity. Neither ligand exchange nor reduction is a rate limiting step for intracellular accumulation. Metabolized iron was found predominantly to exist as fast relaxing Fe(II) high-spin (σ=1.32 mm/s, ΔEQ=2.95 mm/s) and Fe(III) high-spin species (δ=0.35-0.42 mm/s ΔEQ=0.5-0.58 mm/s). Within 27 hours, no measurable amounts of iron are transferred to ferritin like storage forms. Rather, coprogen itself serves as an intermediate iron storage compound.

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ER -

A57Fe Mössbauer study of iron assimilation in N. crassa mediated by siderophores

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