TCDB is operated by the Saier Lab Bioinformatics Group
TCIDNameDomainKingdom/PhylumProtein(s)
*1.B.5.1.1









Outer membrane phosphate-selective porin OprP (PorP) of 440 aas.  Binds and transports a variety of mono, di- and trivalent anions (Benz et al. 1993).  An arginine in the pore determines the anion selectivity (Modi et al. 2013).  Residues involved in anion affinity and a preference for Pi versus P2 have been identified (Modi et al. 2015).  Both monomeric and trimeric OprP are belived to maintain their anion selectivity (Niramitranon et al. 2016).

Bacteria
Proteobacteria
OprP of Pseudomonas aeruginosa
*1.B.5.1.2









Pyrophosphate-selective porin OprO (Hancock et al. 1992).  The residue basis for the selectivity of P2 over Pi has been determined and involves two residues (Modi et al. 2015).

Bacteria
Proteobacteria
OprO of Pseudomonas aeruginosa
*1.B.5.1.3









Outer membrane porin, OprP

Bacteria
Planctomycetes
OprP of Rhodopirellula baltica
*1.B.5.1.4









Outer membrane putative phosphate-specific porin, OprP

Bacteria
Proteobacteria
OprP of Pseudoalteromonas atlantica
*1.B.5.1.5









Putative outer membrane porin

Bacteria
Bacteroidetes/Chlorobi group
OMP of Capnocytophaga ochracea
*1.B.5.1.6









Putative outer membrane porin

Bacteria
Bacteroidetes/Chlorobi group
OMP of Bacteroides helcogenes
*1.B.5.1.7









Putative phosphate-specific porin

Bacteria
Planctomycetes
OMP of Singulisphaera acidiphila
*1.B.5.1.8









Putative porin O

Bacteria
Chlamydiae/Verrucomicrobia group
Porin O of Coraliomargarita akajimensis
*1.B.5.1.9









Porin O

Bacteria
Proteobacteria
Porin O of Shewanella violacea
*1.B.5.1.10









Putative polyphosphate porin, OprO

Bacteria
Planctomycetes
OprO of Rhodopirellula baltica
*1.B.5.1.11









Phosphate-selective porin OmpO/P of 412 aas

Bacteria
Chlamydiae/Verrucomicrobia group
OmpO/P of Verrucomicrobiae bacterium
*1.B.5.1.12









Anion-selective porin O/P

Bacteria
Bacteroidetes/Chlorobi group
Porin O/P of Salinibacter ruber
*1.B.5.1.13









Anion-selective porin O/P

Bacteria
Bacteroidetes/Chlorobi group
Porin O/P of Salinibacter ruber
*1.B.5.1.14









Porin of 627 aas with an N-terminal domain of about 140 aas that is recognized by CDD as a tumor supressor myostatin domain (Pfam 13868).

Bacteria
Proteobacteria
Porin fusion protein of Gluconobacter morbifer
*1.B.5.1.15









Phosphate/pyrophosphate-specific porin of 625 aas, OprP/OprO/OprD.

Bacteria
Proteobacteria
OprD/O/P of Methylophaga aminisulfidivorans
*1.B.5.2.1









Putative porin

Bacteria
Proteobacteria
Putative porin of Sideroxydans lithotrophicus
*1.B.5.2.2









Putative porin

Bacteria
Aquificae
Porin of Thermocrinis albus