Article
ShmR is essential for utilization of heme as a nutritional iron source in Sinorhizobium meliloti.
Applied and environmental microbiology - 1 Oct 2008
Amarelle Vanesa, O'Brian Mark R, Fabiano Elena
Abstract excerpt
The bacterium Sinorhizobium meliloti is able to use heme as a nutritional iron source. Here, we show that the iron-regulated shmR gene encodes an outer membrane protein required for growth on heme. Furthermore, an shmR mutant is resistant to the toxic heme analog gallium protoporphyrin. Thus, the receptor protein of the heme transport system has been identified in S. meliloti.
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