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UniProtKB - A6ZIQ8 (TM38A_RAT)
Protein
Trimeric intracellular cation channel type A
Gene
Tmem38a
Organism
Rattus norvegicus (Rat)
Status
Functioni
Monovalent cation channel required for maintenance of rapid intracellular calcium release. May act as a potassium counter-ion channel that functions in synchronization with calcium release from intracellular stores.
By similaritySites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 122 | Phosphatidylinositol 4,5-bisphosphate (PIP2)By similarity | 1 | |
Binding sitei | 126 | Phosphatidylinositol 4,5-bisphosphate (PIP2)By similarity | 1 |
GO - Molecular functioni
- identical protein binding Source: RGD
- potassium channel activity Source: RGD
GO - Biological processi
- cellular response to caffeine Source: RGD
- endoplasmic reticulum organization Source: RGD
- inorganic cation transmembrane transport Source: RGD
- potassium ion transmembrane transport Source: RGD
- regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion Source: RGD
- release of sequestered calcium ion into cytosol by sarcoplasmic reticulum Source: RGD
Keywordsi
Molecular function | Ion channel, Potassium channel |
Biological process | Ion transport, Potassium transport, Transport |
Ligand | Potassium |
Names & Taxonomyi
Protein namesi | Recommended name: Trimeric intracellular cation channel type AShort name: TRIC-A Short name: TRICA Alternative name(s): 27 kDa sarcoplasmic reticulum protein SPR-27 Transmembrane protein 38A |
Gene namesi | Name:Tmem38aBy similarity |
Organismi | Rattus norvegicus (Rat) |
Taxonomic identifieri | 10116 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Rattus |
Proteomesi |
|
Organism-specific databases
RGDi | 1307901, Tmem38a |
Subcellular locationi
Nucleus
- Nucleus membrane By similarity
Other locations
- Sarcoplasmic reticulum membrane By similarity; Multi-pass membrane protein By similarity
Endoplasmic reticulum
- sarcoplasmic reticulum Source: RGD
- sarcoplasmic reticulum membrane Source: UniProtKB-SubCell
Nucleus
- nuclear membrane Source: RGD
Other locations
- integral component of membrane Source: UniProtKB-KW
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Topological domaini | 1 – 18 | LumenalCuratedAdd BLAST | 18 | |
Transmembranei | 19 – 39 | Helical;Name=1Sequence analysisAdd BLAST | 21 | |
Topological domaini | 40 – 51 | CytoplasmicCuratedAdd BLAST | 12 | |
Transmembranei | 52 – 72 | Helical;Name=2Sequence analysisAdd BLAST | 21 | |
Topological domaini | 73 – 85 | LumenalCuratedAdd BLAST | 13 | |
Transmembranei | 86 – 106 | Helical;Name=3Sequence analysisAdd BLAST | 21 | |
Topological domaini | 107 – 143 | CytoplasmicCuratedAdd BLAST | 37 | |
Transmembranei | 144 – 164 | Helical;Name=4Sequence analysisAdd BLAST | 21 | |
Topological domaini | 165 – 177 | LumenalCuratedAdd BLAST | 13 | |
Transmembranei | 178 – 198 | Helical;Name=5Sequence analysisAdd BLAST | 21 | |
Topological domaini | 199 – 208 | CytoplasmicCurated | 10 | |
Transmembranei | 209 – 229 | Helical;Name=6Sequence analysisAdd BLAST | 21 | |
Topological domaini | 230 – 233 | LumenalCurated | 4 | |
Transmembranei | 234 – 254 | Helical;Name=7Sequence analysisAdd BLAST | 21 | |
Topological domaini | 255 – 297 | CytoplasmicCuratedAdd BLAST | 43 |
Keywords - Cellular componenti
Membrane, Nucleus, Sarcoplasmic reticulumPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000309466 | 1 – 297 | Trimeric intracellular cation channel type AAdd BLAST | 297 |
Proteomic databases
PaxDbi | A6ZIQ8 |
PRIDEi | A6ZIQ8 |
Interactioni
Subunit structurei
Homotrimer; trimerization probably requires binding to phosphatidylinositol 4,5-bisphosphate (PIP2).
By similarityGO - Molecular functioni
- identical protein binding Source: RGD
Protein-protein interaction databases
BioGRIDi | 258417, 2 interactors |
IntActi | A6ZIQ8, 1 interactor |
STRINGi | 10116.ENSRNOP00000059284 |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 259 – 297 | DisorderedSequence analysisAdd BLAST | 39 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 279 – 297 | Basic and acidic residuesSequence analysisAdd BLAST | 19 |
Sequence similaritiesi
Belongs to the TMEM38 family.Sequence analysis
Keywords - Domaini
Transmembrane, Transmembrane helixPhylogenomic databases
eggNOGi | KOG3944, Eukaryota |
InParanoidi | A6ZIQ8 |
OrthoDBi | 1319985at2759 |
PhylomeDBi | A6ZIQ8 |
Family and domain databases
InterProi | View protein in InterPro IPR007866, TRIC_channel |
PANTHERi | PTHR12454, PTHR12454, 1 hit |
Pfami | View protein in Pfam PF05197, TRIC, 1 hit |
(1+)i Sequence
Sequence statusi: Complete.
This entry has 1 described isoform and 3 potential isoforms that are computationally mapped.Show allAlign All
A6ZIQ8-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MDLISSLSLG ELALSFSRVP LFPVFDLSYF IVSIIYLKYE PGSVELSRRH
60 70 80 90 100
PVASWLCAML HCFGSYILAD LLLGEPIIDY FSNSSSILLA SGVWYLIFFC
110 120 130 140 150
PLDLFYKCVC FLPVKLIFVA MKEVVRVRKI AVGIHHAHHY HHGWFIMIAT
160 170 180 190 200
GWVKGSGVAL LSNLEQLLRG VWKPETNEIL HMSFPTKASL YGAILFTLQQ
210 220 230 240 250
TRWLPVSKAS LIFVFTMFMV SCKVFLTATH SHSSPFDVLE GYICPVLFGA
260 270 280 290
TWGGDHHHDN HGAPHGMGLG TQHSGLPAKA KEELSEGFRK KKTKKAD
Computationally mapped potential isoform sequencesi
There are 3 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basketG3V9T4 | G3V9T4_RAT | Transmembrane protein 38a (Predicte... | Tmem38a Tmem38a_predicted, rCG_38703 | 298 | Annotation score: | ||
B1WBL7 | B1WBL7_RAT | Tmem38a protein | Tmem38a Tmem38a_predicted, rCG_38703 | 198 | Annotation score: | ||
A0A8I6A2V4 | A0A8I6A2V4_RAT | Trimeric intracellular cation chann... | Tmem38a | 207 | Annotation score: |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | EF690436 mRNA Translation: ABR68564.1 |
RefSeqi | NP_001093645.1, NM_001100175.1 |
Genome annotation databases
GeneIDi | 306327 |
KEGGi | rno:306327 |
UCSCi | RGD:1307901, rat |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | EF690436 mRNA Translation: ABR68564.1 |
RefSeqi | NP_001093645.1, NM_001100175.1 |
3D structure databases
AlphaFoldDBi | A6ZIQ8 |
SMRi | A6ZIQ8 |
ModBasei | Search... |
Protein-protein interaction databases
BioGRIDi | 258417, 2 interactors |
IntActi | A6ZIQ8, 1 interactor |
STRINGi | 10116.ENSRNOP00000059284 |
Proteomic databases
PaxDbi | A6ZIQ8 |
PRIDEi | A6ZIQ8 |
Genome annotation databases
GeneIDi | 306327 |
KEGGi | rno:306327 |
UCSCi | RGD:1307901, rat |
Organism-specific databases
CTDi | 79041 |
RGDi | 1307901, Tmem38a |
Phylogenomic databases
eggNOGi | KOG3944, Eukaryota |
InParanoidi | A6ZIQ8 |
OrthoDBi | 1319985at2759 |
PhylomeDBi | A6ZIQ8 |
Miscellaneous databases
PROi | PR:A6ZIQ8 |
Family and domain databases
InterProi | View protein in InterPro IPR007866, TRIC_channel |
PANTHERi | PTHR12454, PTHR12454, 1 hit |
Pfami | View protein in Pfam PF05197, TRIC, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | TM38A_RAT | |
Accessioni | A6ZIQ8Primary (citable) accession number: A6ZIQ8 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 13, 2007 |
Last sequence update: | August 21, 2007 | |
Last modified: | May 25, 2022 | |
This is version 75 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families