Q48722 · LTRB_LACLC
- ProteinGroup II intron-interrupted relaxase LtrB
- GeneltrBE1; ltrBE2
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids563 (go to sequence)
- Protein existenceInferred from homology
- Annotation score2/5
Function
function
Mediates initition of conjugal transfer of plasmid pRS01 possibly by introducing a single-stranded nick at the potential origin of transfer, to initiate single strand transfer from donor to recipient.
Miscellaneous
The gene coding for this protein is interrupted by a group II intron, Ll.LtrB. Splicing of the intervening intron is necessary for proper protein activity and, therefore, conjugative transfer of pRS01, as the splicing event brings together the two conserved histidine residues proposed to function as ligands for the metal ion cofactor.
Cofactor
Mn2+ (UniProtKB | Rhea| CHEBI:29035 )
Features
Showing features for active site, binding site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Active site | 44 | ||||
Binding site | 159 | Mg2+ (UniProtKB | ChEBI) | |||
Binding site | 161 | Mg2+ (UniProtKB | ChEBI) | |||
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | metal ion binding |
Keywords
- Molecular function
- Biological process
- Ligand
Names & Taxonomy
Protein names
- Recommended nameGroup II intron-interrupted relaxase LtrB
- Alternative names
Gene names
Encoded on
- Plasmid pRS01
Organism names
- Strain
- Taxonomic lineageBacteria > Bacillota > Bacilli > Lactobacillales > Streptococcaceae > Lactococcus
Accessions
- Primary accessionQ48722
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Chain | PRO_0000084514 | 1-563 | Group II intron-interrupted relaxase LtrB | ||
Structure
Family & Domains
Sequence similarities
Belongs to the mobilization (MOB) protein type 1 family.
Family and domain databases
Sequence
- Sequence statusComplete
- Length563
- Mass (Da)64,870
- Last updated2007-12-04 v2
- ChecksumBB1A204177662CE7
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
U50902 EMBL· GenBank· DDBJ | AAB06502.2 EMBL· GenBank· DDBJ | Genomic DNA |