9.B.284. The 4 TMS Uncharacterized Bacterial Protein-20 (UBP20) Family The proteins of this family were identified while characterizing the Heliorhodopsin Family (TC#3.E.3). When 9.B.284.1.1 was TC BLASTed, striking similarities with the two 7 TMS protein with TC# 3.E.3.1.1 and 2 as can be seen by running a TC BLAST run with this protein. For example, TC BLASTing 9.B.284.1.1 gave hits with 3.E.3.1.1 and 3.E.3.1.2 with residues 53 - 145 aligning with residues 63 - 153 of the two similar Heliorhodopsins. However, homology could not be established using our traditional procedures. Therefore, we have put these 4 TMS proteins into the current family (9.B.284).
Examples:
TC#	Name	Organismal Type	Example
9.B.284.1.1	Uncharacterized protein of 149 aas and 3 TMSs.		UP of Enterobacter cloacae

9.B.284.1.2	Uncharacterized protein of 171 aas and 4 TMSs.		UP of Brenneria goodwinii

9.B.284.1.3	Uncharacterized protein of 138 aas and 3 TMSs.		UP of Bathymodiolus thermophilus thioautotrophic gill symbiont

9.B.284.1.4	Uncharacterized 4 TMS homologue of Heliorhodopsins of 150 aas.		UP of Citrobacter braakii

9.B.284.1.5	Uncharacterized protein of 161 aas and 4 TMSs.		UP of Geopsychrobacter electrodiphilus

9.B.284.1.6	Uncharacterized protein of 149 aas and 4 TMSs.		UP of E. coli

9.B.284.1.7	Uncharacterized protein of 101 aas and 3 TMSs. Could be a fragment.		UP of Chryseobacterium treverense

9.B.284.1.8	Uncharacterized protein of 129 aas and 4 TMSs.		UP of Pedobacter sp. R20-19