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Updated: Oct 10, 2026

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
11:04

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

The physiopathological significance of ceruloplasmin. A possible therapeutic approach

G Floris1, R Medda, A Padiglia

  • 1Department of Sciences Applied to Biosystems, University of Cagliari, Cagliari, Italy.

Biochemical Pharmacology
|December 8, 2000
PubMed

Insights

Ceruloplasmin (Cp) plays a key role in iron homeostasis and exhibits enzymatic and nonenzymatic functions. Its unique structure allows it to oxidize non-iron substrates like 6-hydroxydopamine under physiological conditions without toxic byproducts.

Area of Science:

  • Biochemistry
  • Physiology
  • Molecular Biology

Background:

  • Ceruloplasmin (Cp) is a well-known ferroxidase essential for iron homeostasis.
  • Its unique structure as a multicopper oxidase suggests potential roles beyond iron metabolism.
  • Understanding these diverse functions is crucial for comprehending cellular redox balance.

Purpose of the Study:

  • To review and comment on the physiological roles of ceruloplasmin (Cp).
  • To explore the enzymatic and nonenzymatic functions of Cp beyond iron homeostasis.
  • To investigate the physiological relevance of Cp's interaction with non-iron substrates.

Main Methods:

  • Review of existing literature on ceruloplasmin's physiological roles.
  • Analysis of kinetic parameters of Cp-mediated oxidation reactions.
  • Examination of oxidation byproducts, including the case of 6-hydroxydopamine.

Main Results:

  • Ceruloplasmin (Cp) is confirmed to be involved in iron homeostasis.
  • Cp's unique structure enables it to catalyze oxidation of non-iron substrates.
  • The oxidation of 6-hydroxydopamine by Cp occurs under physiological conditions without generating harmful oxygen intermediates.

Conclusions:

  • Ceruloplasmin (Cp) possesses multifaceted physiological roles, extending beyond iron metabolism.
  • Cp's enzymatic and nonenzymatic activities are significant for cellular processes.
  • The oxidation of specific non-iron substrates by Cp, such as 6-hydroxydopamine, is physiologically relevant and occurs safely.

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