SCOPe 2.08: Domain d2gufa_: 2guf A:

Lineage for d2gufa_ (2guf A:)

1. Root: SCOPe 2.08

2. Class f: Membrane and cell surface proteins and peptides [56835] (69 folds)

3. Fold f.4: Transmembrane beta-barrels [56924] (7 superfamilies)
   not a true fold, gathers together transmembrane barrels of different (n,S)
   annotated by the SCOP(e) curators as 'not a true fold'

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 d2gufa_: 2guf A: [135736]
   automated match to d1ujwa_
   complexed with fmt, mpd, mpg

Details for d2gufa_

PDB Entry: 2guf, 1.95 Å

PDB Description: In meso crystal structure of the cobalamin transporter, BtuB

PDB Compounds: (A:) Vitamin B12 transporter btuB

SCOPe Domain Sequences for d2gufa_:

Sequence, based on SEQRES records:

>d2gufa_ f.4.3.3 (A:) Outer membrane cobalamin transporter BtuB {Escherichia coli [TaxId: 562]}
qdtspdtlvvtanrfeqprstvlapttvvtrqdidrwqstsvndvlrrlpgvditqnggs
gqlssifirgtnashvlvlidgvrlnlagvsgsadlsqfpialvqrveyirgprsavygs
daiggvvniittrdepgteisagwgsnsyqnydvstqqqlgdktrvtllgdyahthgydv
vaygntgtqaqtdndgflsktlygalehnftdawsgfvrgygydnrtnydayyspgspll
dtrklysqswdaglryngeliksqlitsyshskdynydphygrydssatldemkqytvqw
annvivghgsigagvdwqkqtttpgtgyvedgydqrntgiyltglqqvgdftfegaarsd
dnsqfgrhgtwqtsagwefiegyrfiasygtsykapnlgqlygfygnpnldpekskqweg
afegltagvnwrisgyrndvsdlidyddhtlkyynegkarikgveatanfdtgplthtvs
ydyvdarnaitdtpllrrakqqvkyqldwqlydfdwgityqylgtrydkdyssypyqtvk
mggvslwdlavaypvtshltvrgkianlfdkdyetvygyqtagreytlsgsytf

Sequence, based on observed residues (ATOM records):

>d2gufa_ f.4.3.3 (A:) Outer membrane cobalamin transporter BtuB {Escherichia coli [TaxId: 562]}
qdtspdtlvvtanrfeqprstvlapttvvtrqdidrwqstsvndvlrrlpgvditqlssi
firgtnashvlvlidgvrlnlagvsgsadlsqfpialvqrveyirgprsavygsdaiggv
vniittrdepgteisagwgsnsyqnydvstqqqlgdktrvtllgdyahthdgflsktlyg
alehnftdawsgfvrgygydnrtnydtrklysqswdaglryngeliksqlitsyshskdy
nydphygrydssatldemkqytvqwannvivghgsigagvdwqkqtttpgtgyvedgydq
rntgiyltglqqvgdftfegaarsddnsqfgrhgtwqtsagwefiegyrfiasygtsyka
pnlgqlygfygnpnldpekskqwegafegltagvnwrisgyrndvsdlidyddhtlkyyn
egkarikgveatanfdtgplthtvsydyvdarnaitdtpllrrakqqvkyqldwqlydfd
wgityqylgtrydkdyssypyqtvkmggvslwdlavaypvtshltvrgkianlfdkdyag
reytlsgsytf

Timeline for d2gufa_:

• d2gufa_ first appeared in SCOP 1.73, called d2gufa1
  
• d2gufa_ appears in SCOPe 2.07