9.B.258. The Uncharacterized Bacterial Protein-8 (UBP8) Family These proteins usually are less than 200 aas in length and have 5 TMSs. They are found in Actinobacteria with high frequency but also in other bacteria. They have a similar topology (a 2 + 3 TMS arrangement) to the Vauolar Iron Transporter proteins of the VIT family (TC# 2.A.89), but sequence similarity has not been demonstrated.
Examples:
TC#	Name	Organismal Type	Example
9.B.258.1.1	Uncharacterized protein of 207 aas and 5 TMSs		UP of Pseudoruegeria lutimaris

9.B.258.1.2	Uncharacterized protein of 185 aas and 5 TMSs in a 2 + 3 arrangement		UP of Leifsonia aquatica

9.B.258.1.3	Uncharacterized protein of 163 aas and 5 TMSs.		UP of Blastococcus endophyticus

9.B.258.1.4	Uncharacterized protein of 149 aas and 4 TMSs in a 1 + 3 arrangement.		UP of Microterricola viridarii

9.B.258.1.5	Uncharacterized protein of 169 aas and 5 TMSs.		UP of Cellulomonas massiliensis

9.B.258.1.6	Uncharacterized protein of 178 aas and 5 TMSs in a 2 + 3 arrangement.		UP of Sphaerobacter thermophilus

9.B.258.1.7	Uncharacterized protein of 176 aas and 5 TMSs.		UP of Thiothrix disciformis

9.B.258.1.8	Uncharacterized protein of 176 aas and 5 TMSs in a 2 + 3 arrangement. May be related to 2.A.89.1.6 which also has 5 TMSs in a 2 + 3 arrangement (e value of e^-6 with residues 1 - 167 aligning with residues 1 - 166. Thus 9.B.258 may be a member of the VIT family (TC# 2.A.89).		UP of Candidatus Saccharibacteria bacterium

Examples:
TC#	Name	Organismal Type	Example
9.B.258.2.1	Uncharacterized protein of 178 aas and 5 TMSs in a 2 + 3 arrangement		UP of Nocardia testacea

9.B.258.2.2	Uncharacterized protein of 174 aas and 5 TMSs		UP of Streptacidiphilus jeojiense