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Related Experiment Video

Updated: Jul 11, 2026

Staphylococcus aureus Growth using Human Hemoglobin as an Iron Source

Staphylococcus aureus Growth using Human Hemoglobin as an Iron Source

Published on: February 7, 2013

Enterobactin: an archetype for microbial iron transport.

Kenneth N Raymond¹, Emily A Dertz, Sanggoo S Kim

¹Department of Chemistry, University of California, Berkeley, CA 94720-1460, USA. raymond@socrates.berkeley.edu

Proceedings of the National Academy of Sciences of the United States of America

|March 26, 2003

Summary

Bacteria utilize siderophores, like enterobactin, for iron uptake. Recent discoveries reveal related compounds and interactions with the human immune system, expanding our understanding of bacterial iron acquisition.

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Area of Science:

Microbiology
Biochemistry
Immunology

Background:

Bacteria require iron, an essential nutrient, and employ aggressive acquisition strategies.
Siderophores are small iron-chelating molecules crucial for cellular iron transport.
Enterobactin, a triscatechol derivative, is a well-studied siderophore involved in bacterial iron uptake.

Purpose of the Study:

To explore the diverse world of siderophore-mediated iron uptake systems.
To highlight recent advancements and surprising findings in siderophore research.
To investigate the structural and functional aspects of enterobactin and related compounds.

Main Methods:

Literature review and synthesis of existing research on siderophores.
Analysis of chemical structures and properties of enterobactin and corynebactin.
Examination of the crystal structure of ferric enterobactin complex with an immune protein.

Main Results:

Enterobactin is a highly understood siderophore system with complex functions.
Corynebactin, a related siderophore, has been identified in Gram-positive bacteria.
The crystal structure revealed a ferric enterobactin complex with a human innate immune protein.

Conclusions:

Bacterial iron acquisition via siderophores is a dynamic field with ongoing discoveries.
Related siderophores like corynebactin expand the known diversity of iron uptake mechanisms.
Interactions between bacterial siderophores and host immune components are being uncovered.