期刊
RESEARCH IN MICROBIOLOGY
卷 170, 期 8, 页码 345-357出版社
ELSEVIER
DOI: 10.1016/j.resmic.2019.10.008
关键词
Iron; Siderophore; Heme; Substrate-binding protein
类别
资金
- Agence Nationale de la Recherche LABEX DYNAMO [ANR-11-LABEX-0011-01]
Iron acquisition is an essential aspect of cell physiology for most bacteria. Although much is known about how bacteria initially recognize the various iron sources they can encounter, whether siderophore, heme, host iron/heme binding proteins, much less is known about how the iron containing compounds (Fe2+, Fe3+, Fe3+-siderophore complex or heme) are transported across the cytoplasmic membrane. This last transport step is powered by specific ABC (ATP-Binding-Cassette) transporters, made up of a substrate binding protein (SBP) that delivers its cargo to the TMD (TransMembrane Domain) of the ABC transporter triggering the entry of the substrate inside the cytoplasm upon catalytic activity of the ABC module. This review focuses on structural aspects of the functioning of such ABC transporters with the most part devoted to the substrate binding proteins. (C) 2019 Institut Pasteur. Published by Elsevier Masson SAS. All rights reserved.
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