P0AFS1 (LSRD_ECOLI) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 61.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Autoinducer 2 import system permease protein LsrD Short name=AI-2 import system permease protein LsrD | ||||||
| Gene names |
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| Organism | Escherichia coli (strain K12) [Reference proteome] [HAMAP] | ||||||
| Taxonomic identifier | 83333 [NCBI] | ||||||
| Taxonomic lineage | Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Escherichia › ![]() |
Protein attributes
| Sequence length | 330 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Part of the ABC transporter complex LsrABCD involved in autoinducer 2 (AI-2) import. Probably responsible for the translocation of the substrate across the membrane Probable. Ref.4 |
| Subunit structure | The complex is composed of two ATP-binding proteins (LsrA), two transmembrane proteins (LsrC and LsrD) and a solute-binding protein (LsrB) Probable. |
| Subcellular location | |
| Induction | In the absence of AI-2, repressed by LsrR. Induced by AI-2, via release of the LsrR repressor. In the absence of glucose, induced by cAMP-CRP by direct binding to the upstream region of the lsr promoter. Ref.4 Ref.5 |
| Sequence similarities | Belongs to the binding-protein-dependent transport system permease family. AraH/RbsC subfamily. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Transport |
| Cellular component | Cell inner membrane Cell membrane Membrane |
| Domain | Transmembrane Transmembrane helix |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Cellular_component | integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW plasma membraneInferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular_function | transporter activity Inferred from electronic annotation. Source: InterPro |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 330 | 330 | Autoinducer 2 import system permease protein LsrD | PRO_0000060248 | |||||
Regions | |||||||||
| Topological domain | 1 – 4 | 4 | Cytoplasmic Potential | ||||||
| Transmembrane | 5 – 25 | 21 | Helical; Potential | ||||||
| Topological domain | 26 – 42 | 17 | Periplasmic Potential | ||||||
| Transmembrane | 43 – 63 | 21 | Helical; Potential | ||||||
| Topological domain | 64 – 67 | 4 | Cytoplasmic Potential | ||||||
| Transmembrane | 68 – 88 | 21 | Helical; Potential | ||||||
| Transmembrane | 89 – 109 | 21 | Helical; Potential | ||||||
| Topological domain | 110 – 115 | 6 | Cytoplasmic Potential | ||||||
| Transmembrane | 116 – 136 | 21 | Helical; Potential | ||||||
| Topological domain | 137 – 159 | 23 | Periplasmic Potential | ||||||
| Transmembrane | 160 – 180 | 21 | Helical; Potential | ||||||
| Topological domain | 181 – 209 | 29 | Cytoplasmic Potential | ||||||
| Transmembrane | 210 – 230 | 21 | Helical; Potential | ||||||
| Topological domain | 231 – 237 | 7 | Periplasmic Potential | ||||||
| Transmembrane | 238 – 258 | 21 | Helical; Potential | ||||||
| Transmembrane | 259 – 279 | 21 | Helical; Potential | ||||||
| Topological domain | 280 – 285 | 6 | Periplasmic Potential | ||||||
| Transmembrane | 286 – 306 | 21 | Helical; Potential | ||||||
| Topological domain | 307 – 330 | 24 | Cytoplasmic Potential | ||||||
Sequences
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References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | U00096 Genomic DNA. Translation: AAC74588.1. AP009048 Genomic DNA. Translation: BAA15202.1. |
| PIR | F64905. |
| RefSeq | NP_416032.1. NC_000913.2. YP_489778.1. NC_007779.1. |
3D structure databases | |
| ProteinModelPortal | P0AFS1. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | 511145.b1515. |
Protein family/group databases | |
| TCDB | 3.A.1.2.8. ATP-binding cassette (ABC) superfamily. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| EnsemblBacteria | AAC74588; AAC74588; b1515. BAA15202; BAA15202; BAA15202. |
| GeneID | 12930122. 946264. |
| KEGG | ecj:Y75_p1490. eco:b1515. |
| PATRIC | 32118326. VBIEscCol129921_1583. |
Organism-specific databases | |
| EchoBASE | EB3569. |
| EcoGene | EG13808. lsrD. |
Phylogenomic databases | |
| eggNOG | COG1172. |
| HOGENOM | HOG000212232. |
| KO | K10557. |
| OMA | GIMTKKV. |
| ProtClustDB | PRK15038. |
Enzyme and pathway databases | |
| BioCyc | EcoCyc:YDEZ-MONOMER. ECOL316407:JW1508-MONOMER. |
Gene expression databases | |
| Genevestigator | P0AFS1. |
Family and domain databases | |
| InterPro | IPR001851. ABC_transp_permease. [Graphical view] |
| Pfam | PF02653. BPD_transp_2. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | LSRD_ECOLI | ||||||||
| Accession | Primary (citable) accession number: P0AFS1 Secondary accession number(s): P76881, P77651 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Prokaryotic Protein Annotation Program | ||||||||
Relevant documents
| Escherichia coli Escherichia coli (strain K12): entries and cross-references to EcoGene |
| SIMILARITY comments Index of protein domains and families |

Clusters with
