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Cited by 166

The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.

Heme uptake across the outer membrane as revealed by crystal structures of the receptor–hemophore complex

Open access
Krieg, Stefanie, Huché, Frédéric, Diederichs, Kay, Izadi-Pruneyre, Nadia, Lecroisey, Anne, Wandersman, Cécile, Delepelaire, Philippe, Welte, Wolfram·2009·Proceedings of the National Academy of Sciences

Abstract

Gram-negative bacteria use specific heme uptake systems, relying on outer membrane receptors and excreted heme-binding proteins (hemophores) to scavenge and actively transport heme. To unravel the unknown molecular details involved, we present 3 structures of the Serratia marcescens receptor HasR in complex with its hemophore HasA. The transfer of heme over a distance of 9 Å from its high-affinity site in HasA into a site of lower affinity in HasR is coupled with the exergonic complex formation of the 2 proteins. Upon docking to the receptor, 1 of the 2 axial heme coordinations of the hemophore is initially broken, but the position and orientation of the heme is preserved. Subsequently, steric displacement of heme by a receptor residue ruptures the other axial coordination, leading to heme transfer into the receptor.

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Metadata

Authors
Krieg, S., Huché, F., Diederichs, K., Izadi-Pruneyre, N., Lecroisey, A., Wandersman, C., Delepelaire, P., & Welte, W.
Venue
Proceedings of the National Academy of Sciences
Published
2009-01-27
Volume
106
Issue
4
Pages
1045-1050
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2067218778
Cited by
166
References
4
FWCI
8.02
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Heme uptake across the outer membrane as revealed by crystal structures of the receptor–hemophore complex. https://app.cochat.ai/papers/10.1073/pnas.0809406106
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Krieg, S., Huché, F., Diederichs, K., Izadi-Pruneyre, N., Lecroisey, A., Wandersman, C., Delepelaire, P., & Welte, W. (2009). Heme uptake across the outer membrane as revealed by crystal structures of the receptor–hemophore complex. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0809406106

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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