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). The phosphonic-acid antibiotic fosfomycin is highly permeable through the OprO and OprP channels (Citak et al. 2018).

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).  The phosphonic-acid antibiotic fosfomycin is highly permeable through the OprO and OprP channels (Citak et al. 2018).

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