9.B.272. The Uncharacterized Protein from Uncultivated Bacteria-10 (UPUB10) Family This family includes small protein of about 170 to 210 aas, usually with 5 TMSs. They are found exclusively in uncultured bacteria. However, with an iteration with NCBI Psi-Blast, the dominant proteins that come up are amino acid transport membrane proteins of the ABC superfamily with TC# 3.A.1.3. These integral membrae ABC proteins show variable numbers of TMSs, but many have 5 TMSs.
Examples:
TC#	Name	Organismal Type	Example
9.B.272.1.1	Uncharacterized protein of 209 aas and 5 TMSs		UP of Candidatus Buchananbacteria bacterium

9.B.272.1.2	Uncharacterized protein of 180 aas and 5 TMSs.		UP of Candidatus Uhrbacteria bacterium

9.B.272.1.3	Uncharacterized protein of 188 aas and 5 TMSs.		UP of Candidatus Peribacter riflensis

9.B.272.1.4	Uncharacterized protein of 170 aas and 5 TMSs.		UP of Candidatus Torokbacteria

9.B.272.1.5	Uncharacterized protein of 191 aas and 5 TMSs.		UP of Candidatus Harrisonbacteria bacterium

9.B.272.1.6	Uncharacterized protein of 190 aas and 6 TMSs.		UP of Candidatus Sungbacteria bacterium