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Related Experiment Videos

Structure and function of ferrochelatase

G C Ferreira1, R Franco, S G Lloyd

  • 1Department of Biochemistry and Molecular Biology, College of Medicine, University of South Florida, Tampa 33612, USA.

Journal of Bioenergetics and Biomembranes
|April 1, 1995
PubMed
Summary
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Ferrochelatase, the enzyme essential for heme production, is implicated in protoporphyria due to mutations. Recent research clarifies its structure and function, aiding understanding of this heme synthesis disorder.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • Ferrochelatase is the final enzyme in heme biosynthesis, catalyzing iron insertion into protoporphyrin IX.
  • It is a mitochondrial enzyme, and reduced activity is characteristic of protoporphyria.
  • Genetic mutations in ferrochelatase are linked to certain forms of erythropoietic protoporphyria.

Purpose of the Study:

  • To review recent advances in the structure and function of ferrochelatase.
  • To summarize findings from genomic and cDNA studies across various organisms.
  • To discuss functional studies of ferrochelatase mutants in relation to disease.

Main Methods:

  • Isolation and sequencing of ferrochelatase genomic and cDNA clones (bacteria, yeast, barley, mouse, human).

Related Experiment Videos

  • Functional expression studies in yeast, Escherichia coli, and insect cells.
  • Site-directed mutagenesis to investigate enzyme function and disease-associated mutations.

    • Main Results:

    • Genomic and cDNA sequences for ferrochelatase have been obtained from multiple species.
    • Functional expression systems have been established for studying ferrochelatase.
    • A (2Fe-2S) cluster is identified as a conserved feature in mammalian ferrochelatases.
    • Mutagenesis studies provide insights into enzyme structure-function relationships.

    Conclusions:

    • Significant progress has been made in understanding ferrochelatase structure and function.
    • Genetic and functional studies are crucial for elucidating the molecular basis of protoporphyria.
    • Further research on ferrochelatase mutants will enhance our understanding of heme synthesis disorders.