| TCID | Name | Domain | Kingdom/Phylum | Protein(s) |
|---|---|---|---|---|
|
1.B.3.1.1 | LamB (MalL) maltoporin (maltose–maltoheptose). Also catalyzes the uptake of antibiotics (Lin et al. 2014). LamB preferentially binds maltodextrins from the periplasmic side, and thus, sugar binding and uptake are asymmetric (Mulvihill et al. 2019). Expression of the lamB gene is regulated by EnvZ and OmpR in response to osmolarity and thereby influences antibiotic resistance (Gerken et al. 2024). | Bacteria |
Pseudomonadota | LamB of E. coli |
|
1.B.3.1.2 | Oligosaccharide porin, ScrY (transports sucrose, raffinose and maltooligo-saccharides) (Kim et al. 2002). The 3-d structure known (PDB ID 1A0S). Sucrose translocation through the pore showed two main energy barriers within the constriction region of ScrY. Three asparate residues are key residues, opposing the passage of sucrose, all located within the L3 loop (Sun et al. 2016). | Bacteria |
Pseudomonadota | ScrY of Salmonella typhimurium |
|
1.B.3.1.3 | Porin with specificity for β-glucosides, BglH of 538 aas. High affinity binding was observed with the aromatic beta-D-glucosides arbutin and salicin as well as with gentibiose and cellobiose. Binding of maltooligosaccharides to BglH was much weaker, indicating that the binding site of BglH for carbohydrates is different from that of LamB (maltoporin) (Andersen et al. 1999). | Bacteria |
Pseudomonadota | BglH (YieC) of E. coli |
|
1.B.3.1.4 | Maltoporin | Bacteria |
Pseudomonadota | LamB of Alteromonas sp. |
|
1.B.3.1.5 | Outer membrane porin homologue | Bacteria |
Pseudomonadota | Omp of Glaciecola mesophila (K6YXR7) |
|
1.B.3.1.6 | Putative outer membrane porin | Bacteria |
Pseudomonadota | Omp of Rheinheimera nanhaiensis (I1DXN7) |
|
1.B.3.1.7 | Putative outer membrane porin | Bacteria |
Aquificota | OMP of Aquifex aeolicus (O67300) |
|
1.B.3.1.8 | Putative porin | Bacteria |
Pseudomonadota | Porin of Chromohalobacter salexigens |
|
1.B.3.1.9 | Putative porin | Bacteria |
Verrucomicrobiota | Porin of Verrucomicrobiae bacterium |
|
1.B.3.1.10 | Uncharacterized protein | Bacteria |
Nitrospirota | Putative porin of Candidatus Nitrospira defluvii |
|
1.B.3.1.11 | Putative porin of 385 aas | Bacteria |
Planctomycetota | Porin of Planctomycete KSU-1 |
|
1.B.3.1.12 | Putative porin of 447 aas | Bacteria |
Verrucomicrobiota | PP of Pedosphaera parvula |
|
1.B.3.1.13 | sucrose porin, ScrY, of 521 aas (Löwe et al. 2018). | Bacteria |
Pseudomonadota | ScrY of Pseudomonas putida |
|
1.B.3.1.14 | Maltoporin, LamB; MalL, of 439 aas and 1 -terminal TMS. | Bacteria |
Pseudomonadota | LamB of Aeromonas veronii |
|
1.B.3.2.1 | Putative porin of 411 aas | Bacteria |
Verrucomicrobiota | PP of Opitutus terrae |
|
1.B.3.2.2 | Putative porin of 397 aas | Bacteria |
Pseudomonadota | PP of Thioflavicoccus mobilis |
|
1.B.3.2.3 | Putative porin of 401 aas | Bacteria |
Pseudomonadota | PP of Marinobacter aquaeolei (Marinobacter hydrocarbonoclasticus) |
|
1.B.3.2.4 | Uncharacterized protein of 355 aas and 1 N-terminal TMS. | Bacteria |
Pseudomonadota | UP of Vibrio celticus |
|
1.B.3.3.1 | Uncharacterized putative porin of 448 aas | Bacteria |
Bdellovibrionota | UP of Bdellovibrio bacteriovorus |