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Histidine kinase receptor ArcB trans-membrane domain Histidine kinase receptors (HKRs) are part of a two-component system, in which an HKR in the bacterial inner membrane transmits a signal to a response regulator located in the cytoplasm. This is a trans-membrane domain (TM) found in ArcB (class 2, aerobic respiratory control sensor). ArcB has two TM helices connected by a short periplasmic loop. TM domain structures suggests a loose helical packing which provides an inherent flexibility in the TM domains and that this is perhaps essential to the mechanism of signal transduction across the membrane. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",