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UniProtKB - Q8KBX2 (TSPO_CHLTE)
Protein
Tryptophan-rich protein TspO
Gene
crtK-2
Organism
Chlorobaculum tepidum (strain ATCC 49652 / DSM 12025 / NBRC 103806 / TLS) (Chlorobium tepidum)
Status
Functioni
Binds tetrapyrroles and promotes the photooxidative degradation of protoporphyrin IX (PubMed:23651039).
Can bind the benzodiazepine receptor agonist PK-11195 (in vitro); this interferes with photooxidative tetrapyrrole degradation (PubMed:23651039).
May play a role in the transmembrane transport of tetrapyrroles and similar compounds (By similarity).
By similarity1 PublicationGO - Molecular functioni
- tetrapyrrole binding Source: UniProtKB
GO - Biological processi
- tetrapyrrole metabolic process Source: UniProtKB
Keywordsi
Biological process | Transport |
Enzyme and pathway databases
BioCyci | CTEP194439:G1FZE-1699-MONOMER |
Names & Taxonomyi
Protein namesi | Recommended name: Tryptophan-rich protein TspOCuratedAlternative name(s): Translocator protein TspO1 Publication |
Gene namesi | Name:crtK-2Imported Synonyms:tspO Ordered Locus Names:CT1660Imported |
Organismi | Chlorobaculum tepidum (strain ATCC 49652 / DSM 12025 / NBRC 103806 / TLS) (Chlorobium tepidum)Imported |
Taxonomic identifieri | 194439 [NCBI] |
Taxonomic lineagei | Bacteria › Chlorobi › Chlorobia › Chlorobiales › Chlorobiaceae › Chlorobaculum › |
Proteomesi |
|
Subcellular locationi
Plasma membrane
- Cell membrane Curated; Multi-pass membrane protein Curated
Other locations
- Membrane 1 Publication; Multi-pass membrane protein Curated
Plasma Membrane
- plasma membrane Source: UniProtKB-SubCell
Other locations
- integral component of membrane Source: UniProtKB
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Transmembranei | 5 – 25 | Helical; Name=1Sequence analysisAdd BLAST | 21 | |
Transmembranei | 48 – 68 | Helical; Name=2Sequence analysisAdd BLAST | 21 | |
Transmembranei | 79 – 99 | Helical; Name=3Sequence analysisAdd BLAST | 21 | |
Transmembranei | 105 – 125 | Helical; Name=4Sequence analysisAdd BLAST | 21 | |
Transmembranei | 134 – 154 | Helical; Name=5Sequence analysisAdd BLAST | 21 |
Keywords - Cellular componenti
Cell membrane, MembranePathology & Biotechi
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 142 | W → F: No effect on protoporphyrin IX binding. Nearly abolishes protoporphyrin IX photooxidation. 1 Publication | 1 | |
Mutagenesisi | 146 | A → T: Decreases affinity for protoporphyrin IX. Nearly abolishes protoporphyrin IX photooxidation. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000432575 | 1 – 158 | Tryptophan-rich protein TspOAdd BLAST | 158 |
Family & Domainsi
Sequence similaritiesi
Belongs to the TspO/BZRP family.Curated
Keywords - Domaini
Transmembrane, Transmembrane helixPhylogenomic databases
eggNOGi | COG3476, Bacteria |
HOGENOMi | CLU_091805_2_0_10 |
OMAi | GLNLIWM |
OrthoDBi | 1679387at2 |
Family and domain databases
CDDi | cd15904, TSPO_MBR, 1 hit |
Gene3Di | 1.20.1260.100, 1 hit |
InterProi | View protein in InterPro IPR038330, TspO/MBR-related_sf IPR004307, TspO_MBR |
PANTHERi | PTHR10057, PTHR10057, 1 hit |
Pfami | View protein in Pfam PF03073, TspO_MBR, 1 hit |
PIRSFi | PIRSF005859, PBR, 1 hit |
i Sequence
Sequence statusi: Complete.
Q8KBX2-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MNKQILTLAL CIGLCLAVGF AGSTFTPKPA SWYYTTLVKP SWNPPDWLFP
60 70 80 90 100
PVWTILFIMM GTALAKVLGT GWKKNEVNVG VVLFAIQLML NLGWSASFFG
110 120 130 140 150
MQSPLAGLVD IVLLWIFIVL TMLAFARVSK PASLLLVPYL CWVSFASYLN
FTILQLNP
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AE006470 Genomic DNA Translation: AAM72885.1 |
RefSeqi | NP_662543.1, NC_002932.3 WP_010933324.1, NC_002932.3 |
Genome annotation databases
EnsemblBacteriai | AAM72885; AAM72885; CT1660 |
KEGGi | cte:CT1660 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AE006470 Genomic DNA Translation: AAM72885.1 |
RefSeqi | NP_662543.1, NC_002932.3 WP_010933324.1, NC_002932.3 |
3D structure databases
SMRi | Q8KBX2 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 194439.CT1660 |
Genome annotation databases
EnsemblBacteriai | AAM72885; AAM72885; CT1660 |
KEGGi | cte:CT1660 |
Phylogenomic databases
eggNOGi | COG3476, Bacteria |
HOGENOMi | CLU_091805_2_0_10 |
OMAi | GLNLIWM |
OrthoDBi | 1679387at2 |
Enzyme and pathway databases
BioCyci | CTEP194439:G1FZE-1699-MONOMER |
Family and domain databases
CDDi | cd15904, TSPO_MBR, 1 hit |
Gene3Di | 1.20.1260.100, 1 hit |
InterProi | View protein in InterPro IPR038330, TspO/MBR-related_sf IPR004307, TspO_MBR |
PANTHERi | PTHR10057, PTHR10057, 1 hit |
Pfami | View protein in Pfam PF03073, TspO_MBR, 1 hit |
PIRSFi | PIRSF005859, PBR, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | TSPO_CHLTE | |
Accessioni | Q8KBX2Primary (citable) accession number: Q8KBX2 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 1, 2015 |
Last sequence update: | October 1, 2002 | |
Last modified: | February 23, 2022 | |
This is version 74 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families