TCDB is operated by the Saier Lab Bioinformatics Group

9.B.334.  The Archaeal N-terminal Transmembrane  Domain Linked to a Sensor Kinase or MCP Domain (N-TM/SK/MCP) Family 

These archaeal proteins have an N-terminal transmembrane domain followed by a SK or MCP domain.  There seems to exhibit tremendous variation in the combinations of these domains. They are grouped together here as their primary function is probably determined by the hydrophilic domain.  The transmembrane domains may serve as membrane anchors.

References associated with 9.B.334 family:

Bibikov, S.I., R. Biran, K.E. Rudd, and J.S. Parkinson. (1997). A signal transducer for aerotaxis in Escherichia coli. J. Bacteriol. 179: 4075-4079. 9190831
Maschmann, Z.A., T.K. Chua, S. Chandrasekaran, H. Ibáñez, and B.R. Crane. (2022). Redox properties and PAS domain structure of the Escherichia coli energy sensor Aer indicate a multistate sensing mechanism. J. Biol. Chem. 298: 102598. 36252616