SCOPe 2.07: Domain d1nqha_: 1nqh A:

Lineage for d1nqha_ (1nqh A:)

1. Root: SCOPe 2.07

2. Class f: Membrane and cell surface proteins and peptides [56835] (60 folds)

3. Fold f.4: Transmembrane beta-barrels [56924] (7 superfamilies)
   not a true fold, gathers together transmembrane barrels of different (n,S)

4. Superfamily f.4.3: Porins [56935] (5 families)

5. Family f.4.3.3: Ligand-gated protein channel [56948] (5 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] (12 PDB entries)

8. Domain d1nqha_: 1nqh A: [86030]
   complexed with c8e, ca, cnc

Details for d1nqha_

PDB Entry: 1nqh, 3.1 Å

PDB Description: outer membrane cobalamin transporter (btub) from e. coli, with bound calcium and cyanocobalamin (vitamin b12) substrate

PDB Compounds: (A:) Vitamin B12 receptor

SCOPe Domain Sequences for d1nqha_:

Sequence, based on SEQRES records:

>d1nqha_ f.4.3.3 (A:) Outer membrane cobalamin transporter BtuB {Escherichia coli [TaxId: 562]}
dtlvvtanrfeqprstvlapttvvtrqdidrwqstsvndvlrrlpgvditqnggsgqlss
ifirgtnashvlvlidgvrlnlagvsgsadlsqfpialvqrveyirgprsavygsdaigg
vvniittrdepgteisagwgsnsyqnydvstqqqlgdktrvtllgdyahthgydvvaygn
tgtqaqtdndgflsktlygalehnftdawsgfvrgygydnrtnydayyspgsplldtrkl
ysqswdaglryngeliksqlitsyshskdynydphygrydssatldemkqytvqwannvi
vghgsigagvdwqkqtttpgtgyvedgydqrntgiyltglqqvgdftfegaarsddnsqf
grhgtwqtsagwefiegyrfiasygtsykapnlgqlygfygnpnldpekskqwegafegl
tagvnwrisgyrndvsdlidyddhtlkyynegkarikgveatanfdtgplthtvsydyvd
arnaitdtpllrrakqqvkyqldwqlydfdwgityqylgtrydkdyssypyqtvkmggvs
lwdlavaypvtshltvrgkianlfdkdyetvygyqtagreytlsgsytf

Sequence, based on observed residues (ATOM records):

>d1nqha_ f.4.3.3 (A:) Outer membrane cobalamin transporter BtuB {Escherichia coli [TaxId: 562]}
dtlvvtanrfeqprstvlapttvvtrqdidrwqstsvndvlrrlpgvditqnggsgqlss
ifirgtnashvlvlidgvrlnlagvsgsadlsqfpialvqrveyirgprsavygsdaigg
vvniittrdepgteisagwgsnsyqnydvstqqqlgdktrvtllgdyahthgydvvaygn
tgtqaqtdndgflsktlygalehnftdawsgfvrgygydnrtnydayyspgsplldtrkl
ysqswdaglryngeliksqlitsyshskdynydphygrydssatldemkqytvqwannvi
vghgsigagvdwqkqtttpedgydqrntgiyltglqqvgdftfegaarsddnsqfgrhgt
wqtsagwefiegyrfiasygtsykapnlgqlygfygnpnldpekskqwegafegltagvn
wrisgyrndvsdlidyddhtlkyynegkarikgveatanfdtgplthtvsydyvdarnai
tdtpllrrakqqvkyqldwqlydfdwgityqylgtrydkdyssypyqtvkmggvslwdla
vaypvtshltvrgkianlfdkdyetvygyqtagreytlsgsytf

Timeline for d1nqha_:

• d1nqha_ first appeared in SCOP 1.65
  
• d1nqha_ appears in SCOPe 2.06
  
• d1nqha_ appears in the current release, SCOPe 2.08