Recent Evidence for Multifactorial Biofilm Regulation by Heme Sensor Proteins NosP and H-NOX
- 13 February 2021
- journal article
- review article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 50 (5), 1095-1103
- https://doi.org/10.1246/cl.200945
Abstract
Heme is involved in signal transduction by either acting as a cofactor of heme-based gas/redox sensors or binding reversely to heme-responsive proteins. Bacteria respond to low concentrations of nitric oxide (NO) to modulate group behaviors such as biofilms through the well-characterized H-NOX family and the newly discovered heme sensor protein NosP. NosP shares functional similarities with H-NOX as a heme-based NO sensor; both regulate two-component systems and/or cyclic-di-GMP metabolizing enzymes, playing roles in processes such as quorum sensing and biofilm regulation. Interestingly, aside from its role in NO signaling, recent studies suggest that NosP may also sense labile heme. In this Highlight Review, we briefly summarize H-NOX-dependent NO signaling in bacteria, then focus on recent advances in NosP-mediated NO signaling and labile heme sensing.Keywords
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