9.B.150 The DUF502 or Cog2928 (DUF502) Family The DUF502 (Cog2928) family includes many bacterial proteins of about 220aas with two clear N-terminal peaks of hydrophobicity that are predicted to be transmembrane, followed by a long region of moderate hydrophobicity which possibly includes additional TMSs. Some of these homologues are encoded by genes adjacent to ABC transport systems.
Examples:
TC#	Name	Organismal Type	Example
9.B.150.1.1	DUF502 protein, (adjacent to genes coding for an ABC amino acid uptake transport system)	Proteobacteria	*PA5151 of Pseudomonas aeruginosa* (Q9HU33)**

9.B.150.1.2	"Transporter"	Thermus	Thermus thermophilus (Q72IY6)

9.B.150.1.3	Hypothetical protein	Cyanobacteria	*HP of Prochlorococcus marinus* (A2BTW4)**

9.B.150.1.4	Uncharacterized protein of 232 aas and 2 TMSs		UP of Bdellovibrio bacteriovorus