Structural Classification of Proteins

Superfamily: Porins

: uperfamily

Lineage:

Root: scop
Class: Membrane and cell surface proteins and peptides [56835]
Does not include proteins in the immune system
Fold: Transmembrane beta-barrels [56924]
not a true fold, gathers together transmembrane barrels of different (n,S)
Superfamily: Porins [56935]
uperfamily

Families:

Porin [56936] (5)
trimer, one subunit folds into (16,20) barrel
1. Porin [56937]
  1. Escherichia coli, different sequences [TaxId: 562] [56938] (21)
    1. 2zfg
      automatically matched to d1opfa_
      complexed with c8e, mg
      1. region a:1-340 [154407]
    2. 1hxx
      complexed with c8e; mutant
      1. chain a [61385]
    3. 2omf
      complexed with c8e
      1. chain a [43749]
    4. 1gfp
      complexed with c8e; mutant
      1. chain a [43750]
    5. 1gfq
      complexed with c8e; mutant
      1. chain a [43751]
    6. 1hxt
      complexed with c8e; mutant
      1. chain a [61383]
    7. 1mpf
      complexed with c8e; mutant
      1. chain a [43752]
    8. 1gfo
      complexed with c8e; mutant
      1. chain a [43753]
    9. 1gfm
      complexed with c8e; mutant
      1. chain a [43755]
    10. 1gfn
      complexed with c8e; mutant
      1. chain a [43754]
    11. 1hxu
      mutant
      1. chain a [61384]
    12. 1bt9
      mutant
      1. chain a [43756]
    13. 1opf
      1. chain a [43757]
    14. 1opf
      duplicate of 1OPF
      1. chain b [118573]
    15. 1opf
      duplicate of 1OPF
      1. chain c [118574]
    16. 1opf
      duplicate of 1OPF
      1. chain d [118575]
    17. 1opf
      duplicate of 1OPF
      1. chain e [118576]
    18. 1opf
      duplicate of 1OPF
      1. chain f [118577]
    19. 2zld
      automatically matched to d1opfa_
      1. region a:1-340 [154630]
    20. 2zld
      automatically matched to d1opfa_
      1. region b:1-340 [154631]
    21. 1pho
      1. chain a [43758]
  2. Rhodobacter capsulatus [TaxId: 1061] [56939] (2)
    1. 2por
      complexed with ca, ote
      1. chain a [43759]
    2. 3por
      complexed with ote, trs
      1. chain a [43760]
  3. Rhodopseudomonas blastica, strain DSM2131 [TaxId: 1075] [56940] (9)
    1. 3prn
      complexed with c8e, mg; mutant
      1. chain a [43761]
    2. 1prn
      complexed with c8e
      1. chain a [43762]
    3. 5prn
      complexed with c8e; mutant
      1. chain a [43764]
    4. 6prn
      complexed with c8e; mutant
      1. chain a [43765]
    5. 2prn
      complexed with c8e, mg; mutant
      1. chain a [43763]
    6. 1bh3
      complexed with c8e; mutant
      1. chain a [43766]
    7. 8prn
      complexed with c8e; mutant
      1. chain a [43767]
    8. 7prn
      complexed with c8e; mutant
      1. chain a [43768]
    9. 1h6s
      engineered asymmetric conductivity
      mutant
      1. chain 1 [76703]
  4. Klebsiella pneumoniae [TaxId: 573] [56941] (1)
    1. 1osm
      osmoporin ompk36
      complexed with d12
      1. chain a [43769]
      2. chain b [43770]
      3. chain c [43771]
  5. Comamonas acidovorans [TaxId: 80866] [64534] (3)
    Anion-selective porin OMP32
    1. 2fgq
      automatically matched to d1e54a_
      complexed with bog, ca, mlt, so4
      1. region x:3-332 [133439]
    2. 2fgr
      automatically matched to d1e54a_
      complexed with ca, so4; mutant
      1. region a:1-332 [133440]
    3. 1e54
      complexed with a periplasmic peptide, chain B
      complexed with ca, so4
      1. chain a [59258]
Maltoporin-like [56942] (3)
trimer, one subunit folds into (18,22) barrel
1. Maltoporin (also LamB protein) [56943]
  1. Escherichia coli [TaxId: 562] [56944] (8)
    1. 1af6
      complexed with fru, glc, mg
      1. chain a [43772]
      2. chain b [43773]
      3. chain c [43774]
    2. 1mpm
      complexed with glc, mg
      1. chain a [43775]
      2. chain b [43776]
      3. chain c [43777]
    3. 1mpq
      complexed with glc
      1. chain a [43781]
      2. chain b [43782]
      3. chain c [43783]
    4. 1mpo
      complexed with glc, mg
      1. chain a [43778]
      2. chain b [43779]
      3. chain c [43780]
    5. 1mal
      1. chain a [43784]
    6. 1mal
      duplicate of 1MAL
      1. chain b [118553]
    7. 1mal
      duplicate of 1MAL
      1. chain c [118554]
    8. 1mpn
      complexed with glc, mg
      1. chain a [43785]
      2. chain b [43786]
      3. chain c [43787]
  2. Salmonella typhimurium [TaxId: 90371] [56945] (2)
    1. 2mpr
      complexed with ca, glc
      1. chain a [43788]
      2. chain b [43789]
      3. chain c [43790]
    2. 1mpr
      complexed with ca
      1. chain a [43791]
      2. chain b [43792]
      3. chain c [43793]
2. Sucrose-specific porin [56946]
  1. Enterobacterium (Salmonella typhimurium) [TaxId: 90371] [56947] (3)
    1. 1a0t
      complexed with ca, suc
      1. chain p [43794]
      2. chain q [43795]
      3. chain r [43796]
    2. 1oh2
      complexed with ca, suc; mutant
      1. chain p [87006]
      2. chain q [87007]
      3. chain r [87008]
    3. 1a0s
      complexed with ca
      1. chain p [43797]
      2. chain q [43798]
      3. chain r [43799]
Ligand-gated protein channel [56948] (4)
monomeric (22,24) barrel; ~150 N-terminal residues form a "plug" or "cork" subdomain
1. Ferric hydroxamate uptake receptor FhuA [56949]
  1. Escherichia coli [TaxId: 562] [56950] (11)
    1. 1by5
      complexed with c8e, fe, orn
      1. chain a [43800]
    2. 1by3
      complexed with c8e
      1. chain a [43801]
    3. 2fcp
      complexed with gal, glc, gmh, kdo, lia, ni, po4, ppe; mutant
      1. chain a [43802]
    4. 1qff
      complex with bound ferrichrome-iron
      complexed with dao, ddq, dpo, eap, fci, ftt, gal, gcn, glc, gmh, kdo, myr, po4; mutant
      1. chain a [43804]
    5. 1fcp
      complexed with fci, gal, glc, gmh, kdo, lia, ni, po4, ppe; mutant
      1. chain a [43805]
    6. 1qfg
      complexed with dao, ddq, dpo, ftt, gal, gcn, glc, gmh, gol, kdo, myr, ni, po4; mutant
      1. chain a [43803]
    7. 1fi1
      complex with lipopolysaccharide
      complexed with ddq, dpo, ftt, gal, gcn, glc, gmh, kdo, mg, na, ni, po4, rif; mutant
      1. chain a [59844]
    8. 1qjq
      complexed with dpo, ftt, gal, gcn, glc, gmh, kdo, ni, pfc, po4; mutant
      1. chain a [43806]
    9. 1qkc
      complexed with alb, dpo, ftt, gal, gcn, glc, gmh, kdo, ni, po4; mutant
      1. chain a [43807]
    10. 2grx
      automatically matched to d1fi1a_
      complexed with dao, dpo, eap, fci, ftt, gcn, gmh, kdo, myr, po4
      1. region a:19-725 [135569]
    11. 2grx
      automatically matched to d1fi1a_
      complexed with dao, dpo, eap, fci, ftt, gcn, gmh, kdo, myr, po4
      1. region b:19-725 [135570]
2. Ferric enterobactin receptor FepA [56951]
  1. Escherichia coli [TaxId: 562] [56952] (1)
    1. 1fep
      1. chain a [43808]
3. Outer membrane transporter FecA [75654]
  1. Escherichia coli [TaxId: 562] [75655] (5)
    1. 1kmo
      complexed with hto, lda
      1. chain a [72753]
    2. 1po0
      complexed with flc
      1. chain a [94960]
    3. 1pnz
      1. chain a [94959]
    4. 1kmp
      complexed with fdc, lda, mse
      1. chain a [72754]
    5. 1po3
      complexed with fe, flc
      1. chain a [94961]
      2. chain b [94962]
4. Outer membrane cobalamin transporter BtuB [90129]
  vitamin B12 receptor
  1. Escherichia coli [TaxId: 562] [90130] (8)
    1. 2guf
      automatically matched to d1ujwa_
      complexed with fmt, mpd, mpg
      1. region a:4-594 [135736]
    2. 1nqe
      complexed with c8e, mg
      1. chain a [86027]
    3. 2gsk
      automatically matched to d1ujwa_
      complexed with ca, cnc, hex, lda, oct
      1. region a:5-594 [135587]
    4. 1nqf
      complexed with c8e, mg, mse; mutant
      1. chain a [86028]
    5. 1ujw
      complexed with colicin e3 receptor binding domain
      complexed with gol, gp1, lda, lim, lin
      1. chain a [99471]
    6. 1nqg
      complexed with c8e, ca
      1. chain a [86029]
    7. 2ysu
      automatically matched to d1ujwa_
      1. region a:4-594 [140062]
    8. 1nqh
      complexed with c8e, ca, cnc
      1. chain a [86030]
Outer membrane protein transport protein [111361] (1)
Pfam 03349; monomeric (14,16) barrel; plugged by an N-terminal all-alpha subdomain (1-40)
1. Long-chain fatty acid transport protein FadL [111362]
  1. Escherichia coli [TaxId: 562] [111363] (2)
    SQ P10384
    1. 1t16
      complexed with c8e, cu, lda
      1. chain a [106242]
      2. chain b [106243]
    2. 1t1l
      complexed with lda
      1. chain a [106252]
      2. chain b [106253]