9.B.259.   The Uncharacterized Archaeal/Bacterial Protein-1 (UABP1) Family 

The UBP9 family consists mostly of proteins of about 200 - 250 aas with 6 TMSs, but several have more than 6 TMSs, and a few have less.  They derive from uncultured and cultured bacteria as well as archaea.

This family belongs to the .


TC#NameOrganismal TypeExample

Uncharacterized protein of 227 aas and 6 TMSs.

UP of Candidatus Saccharibacteria bacterium


Uncharacterized protein of 242 aas and 6 TMSs.

UP of Chlamydia trachomatis


Uncharacterized protein of 226 aas and 7 TMSs.

UP of Salinispira pacifica


Uncharacterized protein of 283 aas and 9 TMSs.

UP of Candidatus Pacearchaeota archaeon


Uncharacterized protein of 224 aas and 7 TMSs.

UP of Ignavibacteria bacterium


TC#NameOrganismal TypeExample

Uncharacterized PAS domain S-box proteinof 552 aas with 6 N-terminal TMSs and a C-terminal histidine sensor kinase homologous to those in family 9.B.238 with closest similarity to 9.B.238.2.2.

UP of Methanosalsum zhilinae


Uncharacterized protein of 233 aas and 7 N-terminal TMSs with a C-terminal sensor kinase domain homologous to those in families 9.B.238 and 2.A.21.

UP of Candidatus Vogelbacteria bacterium