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9.B.179.  The Uncharacterized Archaeal/Bacterial Protein 12 (UABP12) Family 

This family includes a number of related archaeal proteins with 7 TMSs that may be distantly related to bacterial proteins with either 7 or 8 TMSs.  Some of the latter have the transmembrane domain N-terminal with a C-terminal hydrophilic domain.