P23925 · MGLB_CITFR
- ProteinD-galactose/methyl-galactoside binding periplasmic protein MglB
- GenemglB
- StatusUniProtKB reviewed (Swiss-Prot)
- Organism
- Amino acids332 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Part of the ABC transporter complex MglABC involved in galactose/methyl galactoside import (By similarity).
In addition, binds D-galactose and D-glucose and plays a role in the chemotaxis towards these two sugars by interacting with the Trg chemoreceptor (By similarity).
In addition, binds D-galactose and D-glucose and plays a role in the chemotaxis towards these two sugars by interacting with the Trg chemoreceptor (By similarity).
Features
Showing features for binding site, site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Binding site | 37 | beta-D-galactose (UniProtKB | ChEBI) | |||
Binding site | 37 | beta-D-glucose (UniProtKB | ChEBI) | |||
Site | 97 | Interacts with membrane-bound trg signal transducer | |||
Binding site | 114 | beta-D-galactose (UniProtKB | ChEBI) | |||
Binding site | 114 | beta-D-glucose (UniProtKB | ChEBI) | |||
Binding site | 157 | Ca2+ (UniProtKB | ChEBI) | |||
Binding site | 159 | Ca2+ (UniProtKB | ChEBI) | |||
Binding site | 161 | Ca2+ (UniProtKB | ChEBI) | |||
Binding site | 163 | Ca2+ (UniProtKB | ChEBI) | |||
Binding site | 165 | Ca2+ (UniProtKB | ChEBI) | |||
Binding site | 175 | beta-D-galactose (UniProtKB | ChEBI) | |||
Binding site | 175 | beta-D-glucose (UniProtKB | ChEBI) | |||
Binding site | 177 | beta-D-galactose (UniProtKB | ChEBI) | |||
Binding site | 177 | beta-D-glucose (UniProtKB | ChEBI) | |||
Binding site | 181 | beta-D-galactose (UniProtKB | ChEBI) | |||
Binding site | 181 | beta-D-glucose (UniProtKB | ChEBI) | |||
Binding site | 228 | Ca2+ (UniProtKB | ChEBI) | |||
Binding site | 234 | beta-D-galactose (UniProtKB | ChEBI) | |||
Binding site | 234 | beta-D-glucose (UniProtKB | ChEBI) | |||
Binding site | 259 | beta-D-galactose (UniProtKB | ChEBI) | |||
Binding site | 259 | beta-D-glucose (UniProtKB | ChEBI) | |||
Binding site | 279 | beta-D-galactose (UniProtKB | ChEBI) | |||
Binding site | 279 | beta-D-glucose (UniProtKB | ChEBI) | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | outer membrane-bounded periplasmic space | |
Molecular Function | carbohydrate binding | |
Molecular Function | metal ion binding | |
Biological Process | chemotaxis |
Keywords
- Biological process
- Ligand
Names & Taxonomy
Protein names
- Recommended nameD-galactose/methyl-galactoside binding periplasmic protein MglB
- Alternative names
Gene names
Organism names
- Organism
- Strain
- Taxonomic lineageBacteria > Pseudomonadota > Gammaproteobacteria > Enterobacterales > Enterobacteriaceae > Citrobacter > Citrobacter freundii complex
Accessions
- Primary accessionP23925
Subcellular Location
PTM/Processing
Features
Showing features for signal, chain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Signal | 1-23 | ||||
Chain | PRO_0000031721 | 24-332 | D-galactose/methyl-galactoside binding periplasmic protein MglB | ||
Interaction
Subunit
The ABC transporter complex is composed of one ATP-binding protein (MglA), two transmembrane proteins (MglC) and a solute-binding protein (MglB).
Protein-protein interaction databases
Structure
Family & Domains
Domain
The calcium-binding site is structurally similar to that of EF-hand proteins, but is in two parts, with the last calcium ligand provided by Glu-228.
Sequence similarities
Belongs to the bacterial solute-binding protein 2 family.
Keywords
- Domain
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Sequence processingThe displayed sequence is further processed into a mature form.
- Length332
- Mass (Da)35,817
- Last updated1992-03-01 v1
- Checksum2530E7EDE0471B1B
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
X59389 EMBL· GenBank· DDBJ | CAA42032.1 EMBL· GenBank· DDBJ | Genomic DNA |