SCOP 1.69: Domain d1nqfa_: 1nqf A:

Lineage for d1nqfa_ (1nqf A:)

1. Root: SCOP 1.69

2. Class f: Membrane and cell surface proteins and peptides [56835] (47 folds)

3. Fold f.4: Transmembrane beta-barrels [56924] (6 superfamilies)
   not a true fold, gathers together transmembrane barrels of different (n,S)

4. Superfamily f.4.3: Porins [56935] (4 families)

5. 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

6. Protein Outer membrane cobalamin transporter BtuB [90129] (1 species)
   vitamin B12 receptor

7. Species Escherichia coli [TaxId:562] [90130] (5 PDB entries)

8. Domain d1nqfa_: 1nqf A: [86028]

Details for d1nqfa_

PDB Entry: 1nqf, 2.7 Å

PDB Description: outer membrane cobalamin transporter (btub) from e. coli, methionine substiution construct for se-met sad phasing

SCOP Domain Sequences for d1nqfa_:

Sequence, based on SEQRES records:

>d1nqfa_ f.4.3.3 (A:) Outer membrane cobalamin transporter BtuB {Escherichia coli}
tlvvtanrfeqprstvlapttvvtrqdidrwqstsvndvlrrlpgvditqnggsgqlssi
firgtnashvlvlidgvrlnlagvsgsadlsqfpialvqrveyirgprsavygsdaiggv
vniittrdepgteisagwgsnsyqnydvstqqqlgdktrvtllgdyahthgydvvaygnt
gtqaqtdndgflsktlygalehnftdawsgfvrgygydnrtnydayyspgsplldtrkly
sqswdaglryngeliksqlitsyshskdynydphygrydssatldemkqytvqwannviv
ghgsigagvdmqmqmttpgtgyvedgydqrntgiyltglqqvgdftfegaarsddnsqfg
rhgtwqtsagwefiegyrfiasygtsykapnlgqlygfygnpnldpekskqwegafeglt
agvnwrisgyrndvsdlidyddhtlkyynegkarikgveatanfdtgplthtvsydyvda
rnaitdtpllrrakqqvkyqldwqlydfdmgmtmqylgtrydkdyssypyqtvkmggvsl
wdlavaypvtshltvrgkianlfdkdyetvygyqtagreytlsgsytf

Sequence, based on observed residues (ATOM records):

>d1nqfa_ f.4.3.3 (A:) Outer membrane cobalamin transporter BtuB {Escherichia coli}
tlvvtanrfeqprstvlapttvvtrqdidrwqstsvndvlrrlpgvditqnggsgqlssi
firgtnashvlvlidgvrlnlagvsgsadlsqfpialvqrveyirgprsavygsdaiggv
vniittrdepgteisagwgsnsyqnydvstqqqlgdktrvtllgdyahthgflsktlyga
lehnftdawsgfvrgygydnrtndtrklysqswdaglryngeliksqlitsyshskdyny
atldemkqytvqwannvivghgsigagvdmqmqmttpgtgdgydqrntgiyltglqqvgd
ftfegaarsddnsqfgrhgtwqtsagwefiegyrfiasygtsykapnlgqlygfygnpnl
dpekskqwegafegltagvnwrisgyrndvsdlidyddhtlkyynegkarikgveatanf
dtgplthtvsydyvdarnaitdtpllrrakqqvkyqldwqlydfdmgmtmqylgtrydkd
yssypyqtvkmggvslwdlavaypvtshltvrgkianlfdkdyetvygyqtagreytlsg
sytf

Timeline for d1nqfa_:

• d1nqfa_ first appeared in SCOP 1.65
  
• d1nqfa_ appears in SCOP 1.67
  
• d1nqfa_ appears in SCOP 1.71
  
• d1nqfa_ appears in the current release, SCOPe 2.08