Class f: Membrane and cell surface proteins and peptides [56835] (58 folds) |
Fold f.4: Transmembrane beta-barrels [56924] (6 superfamilies) not a true fold, gathers together transmembrane barrels of different (n,S) |
Superfamily f.4.3: Porins [56935] (4 families) |
Family f.4.3.3: Ligand-gated protein channel [56948] (4 proteins) monomeric (22,24) barrel; ~150 N-terminal residues form a "plug" or "cork" subdomain |
Protein Outer membrane cobalamin transporter BtuB [90129] (1 species) vitamin B12 receptor |
Escherichia coli [TaxId:562] [90130] (8 PDB entries) |
Domain d1nqea_: 1nqe A: [86027] complexed with c8e, mg |
Domain d1nqfa_: 1nqf A: [86028] complexed with c8e, mg, mse; mutant |
Domain d1nqga_: 1nqg A: [86029] complexed with c8e, ca |
Domain d1nqha_: 1nqh A: [86030] complexed with c8e, ca, cnc |
Domain d1ujwa_: 1ujw A: [99471] Other proteins in same PDB: d1ujwb_ complexed with colicin e3 receptor binding domain complexed with gol, gp1, lda, lim, lin |
Domain d2gska1: 2gsk A:5-594 [135587] Other proteins in same PDB: d2gskb1 automatically matched to d1ujwa_ complexed with ca, cnc, hex, lda, oct |
Domain d2gufa1: 2guf A:4-594 [135736] automatically matched to d1ujwa_ complexed with fmt, mpd, mpg |
Domain d2ysua1: 2ysu A:4-594 [140062] Other proteins in same PDB: d2ysub1 automatically matched to d1ujwa_ |
Timeline for Protein Outer membrane cobalamin transporter BtuB from f.4.3.3: Ligand-gated protein channel: