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Siderophore uptake in bacteria and the battle for iron with the host; a bird's eye view
Biometals, 2010-08, Vol.23 (4), p.601-611
[Peer Reviewed Journal]
Springer Science+Business Media, LLC. 2010 ;ISSN: 0966-0844 ;EISSN: 1572-8773 ;DOI: 10.1007/s10534-010-9361-x ;PMID: 20596754
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Title:
Siderophore uptake in bacteria and the battle for iron with the host; a bird's eye view
Author:
Chu, Byron C
;
Garcia-Herrero, Alicia
;
Johanson, Ted H
;
Krewulak, Karla D
;
Lau, Cheryl K
;
Sean Peacock, R
;
Slavinskaya, Zoya
;
Vogel, Hans J
Subjects:
Animals
;
Bacteria
;
Bacteria - metabolism
;
Biochemistry
;
Biomedical and Life Sciences
;
Cell Biology
;
Fungi
;
Hepcidin
;
Host defense
;
Humans
;
Immunity, Innate
;
Iron
;
Iron - chemistry
;
Iron - metabolism
;
Iron Chelating Agents - metabolism
;
Iron Chelating Agents - therapeutic use
;
Iron transport
;
Life Sciences
;
Lipocalins - chemistry
;
Medicine/Public Health
;
Microbiology
;
Models, Molecular
;
Pharmacology/Toxicology
;
Plant Physiology
;
Protein Conformation
;
Proteins
;
Siderocalin
;
Siderophore
;
Siderophores - chemistry
;
Siderophores - metabolism
;
Siderophores - therapeutic use
;
TonB
;
Yeast
Is Part Of:
Biometals, 2010-08, Vol.23 (4), p.601-611
Description:
Siderophores are biosynthetically produced and secreted by many bacteria, yeasts, fungi and plants, to scavenge for ferric iron (Fe³⁺). They are selective iron-chelators that have an extremely high affinity for binding this trivalent metal ion. The ferric ion is poorly soluble but it is the form of iron that is predominantly found in oxygenated environments. Siderophore uptake in bacteria has been extensively studied and over the last decade, detailed structural information for many of the proteins that are involved in their transport has become available. Specifically, numerous crystal structures for outer membrane siderophore transporters, as well as for soluble periplasmic siderophore-binding proteins, have been reported. Moreover, unique siderophore-binding proteins have recently been serendipitously discovered in humans, and the structures of some of their siderophore-complexes have been characterized. The binding pockets for different ferric-siderophores in these proteins have been described in great molecular detail. In addition to highlighting this structural information, in this review paper we will also briefly discuss the relevant chemical properties of iron, and provide a perspective on our current understanding of the human and bacterial iron uptake pathways. Potential clinical uses of siderophores will also be discussed. The emerging overall picture is that iron metabolism plays an extremely important role during bacterial infections. Because levels of free ferric iron in biological systems are always extremely low, there is serious competition for iron and for ferric-siderophores between pathogenic bacteria and the human or animal host.
Publisher:
Dordrecht: Dordrecht : Springer Netherlands
Language:
English;Dutch
Identifier:
ISSN: 0966-0844
EISSN: 1572-8773
DOI: 10.1007/s10534-010-9361-x
PMID: 20596754
Source:
MEDLINE
Alma/SFX Local Collection
ProQuest Central
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