A0A6C6ZXK3 · A0A6C6ZXK3_SALDC
- ProteinVitamin B12 transporter BtuB
- GenebtuB
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids614 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Involved in the active translocation of vitamin B12 (cyanocobalamin) across the outer membrane to the periplasmic space. It derives its energy for transport by interacting with the trans-periplasmic membrane protein TonB.
Features
Showing features for binding site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 85 | cyanocob(III)alamin (UniProtKB | ChEBI) | ||||
Sequence: S | ||||||
Binding site | 92 | cyanocob(III)alamin (UniProtKB | ChEBI) | ||||
Sequence: N | ||||||
Binding site | 110-111 | cyanocob(III)alamin (UniProtKB | ChEBI) | ||||
Sequence: VS | ||||||
Binding site | 199 | Ca2+ 1 (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 211 | Ca2+ 1 (UniProtKB | ChEBI) | ||||
Sequence: Q | ||||||
Binding site | 213 | Ca2+ 1 (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 213 | Ca2+ 2 (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 215 | Ca2+ 2 (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 215 | Ca2+ 1 (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 249 | Ca2+ 2 (UniProtKB | ChEBI) | ||||
Sequence: Y | ||||||
Binding site | 250 | Ca2+ 1 (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 250 | Ca2+ 2 (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 251 | cyanocob(III)alamin (UniProtKB | ChEBI) | ||||
Sequence: A | ||||||
Binding site | 261 | Ca2+ 2 (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 309 | cyanocob(III)alamin (UniProtKB | ChEBI) | ||||
Sequence: T | ||||||
Binding site | 517 | cyanocob(III)alamin (UniProtKB | ChEBI) | ||||
Sequence: R |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cell outer membrane | |
Cellular Component | pore complex | |
Molecular Function | ABC-type vitamin B12 transporter activity | |
Molecular Function | metal ion binding | |
Molecular Function | porin activity | |
Biological Process | monoatomic ion transport |
Keywords
- Molecular function
- Biological process
- Ligand
Names & Taxonomy
Protein names
- Recommended nameVitamin B12 transporter BtuB
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Pseudomonadota > Gammaproteobacteria > Enterobacterales > Enterobacteriaceae > Salmonella
Accessions
- Primary accessionA0A6C6ZXK3
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
Cell outer membrane ; Multi-pass membrane protein
Keywords
- Cellular component
PTM/Processing
Features
Showing features for signal, chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Signal | 1-20 | |||||
Sequence: MIKKATLLTAFSVTAFSAWA | ||||||
Chain | PRO_5025737547 | 21-614 | Vitamin B12 transporter BtuB | |||
Sequence: QDTSPDTLVVTANRFQQPRSAVLAPVTIVTRQDIERWQSTSVNDVLRRLPGVDIAQSGGAGQNSSIFIRGTNSSHVLVLIDGVRLNLAGVSGSADLSQFPVSLVQRIEYIRGPRSAIYGSDAIGGVVNIITTRDNPGTELTAGWGSNSYQNYDISTQQQLGENTRATLIGDYEYTKGFDVVAKGGTGMQAQPDRDGFLSKTLYGALEHTFSDRWSGFVRGYGYDNRTDYDAYYSPGSPLIDTRKLYSQSWDAGLRFNGERIQSQLVSSYSHSKDYNYDPHYGRYDTSATLDEMKQYNVQWTNSVVVGHGNVGAGVDWQKQTTTPGTGYVPEGYDQRNTGVYLTGLQQLGDFTLEAAARSDDNSQFGRHGTWQTSAGWEFIEGYRFIASYGASYKAPNLGQLYGYYGNPNLNPEKSKQWEGAFEGLTAGVSWRISGYRNDINDMIDYDDHLQKYYNEGKARIKGIEATANFDTGPLTHTVSYDYVDARNAVTDTPLPRRSKQMAKYQLDWDVYDFDWGVTYQYLGSRYDSDYSAYPYRTVKMGGVSLWDLTVAYPVTSHLTVRGKIANLFDKDYETVYGYQTAGREYTLSGSYTF |
Structure
Family & Domains
Features
Showing features for motif, domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Motif | 26-33 | TonB box | ||||
Sequence: DTLVVTAN | ||||||
Motif | 27-33 | TonB box | ||||
Sequence: TLVVTAN | ||||||
Domain | 41-146 | TonB-dependent receptor plug | ||||
Sequence: AVLAPVTIVTRQDIERWQSTSVNDVLRRLPGVDIAQSGGAGQNSSIFIRGTNSSHVLVLIDGVRLNLAGVSGSADLSQFPVSLVQRIEYIRGPRSAIYGSDAIGGV | ||||||
Domain | 170-588 | TonB-dependent receptor-like beta-barrel | ||||
Sequence: QNYDISTQQQLGENTRATLIGDYEYTKGFDVVAKGGTGMQAQPDRDGFLSKTLYGALEHTFSDRWSGFVRGYGYDNRTDYDAYYSPGSPLIDTRKLYSQSWDAGLRFNGERIQSQLVSSYSHSKDYNYDPHYGRYDTSATLDEMKQYNVQWTNSVVVGHGNVGAGVDWQKQTTTPGTGYVPEGYDQRNTGVYLTGLQQLGDFTLEAAARSDDNSQFGRHGTWQTSAGWEFIEGYRFIASYGASYKAPNLGQLYGYYGNPNLNPEKSKQWEGAFEGLTAGVSWRISGYRNDINDMIDYDDHLQKYYNEGKARIKGIEATANFDTGPLTHTVSYDYVDARNAVTDTPLPRRSKQMAKYQLDWDVYDFDWGVTYQYLGSRYDSDYSAYPYRTVKMGGVSLWDLTVAYPVTSHLTVRGKIANL | ||||||
Motif | 597-614 | TonB C-terminal box | ||||
Sequence: YGYQTAGREYTLSGSYTF |
Sequence similarities
Belongs to the TonB-dependent receptor family. BtuB (TC 1.B.14.3.1) subfamily.
Keywords
- Domain
Family and domain databases
Sequence
- Sequence statusComplete
- Sequence processingThe displayed sequence is further processed into a mature form.
- Length614
- Mass (Da)68,468
- Last updated2020-06-17 v1
- ChecksumADF10BD637D04FDC
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
CP001144 EMBL· GenBank· DDBJ | ACH75360.1 EMBL· GenBank· DDBJ | Genomic DNA |