UniProtKB - Q2IBC5 (CAV2_RAT)
Caveolin-2
Cav2
Functioni
GO - Molecular functioni
- D1 dopamine receptor binding Source: UniProtKB
- mitogen-activated protein kinase kinase kinase binding Source: BHF-UCL
- molecular adaptor activity Source: RGD
- phosphoprotein binding Source: RGD
- protein heterodimerization activity Source: RGD
- protein homodimerization activity Source: RGD
- protein kinase binding Source: RGD
- protein-macromolecule adaptor activity Source: RGD
- scaffold protein binding Source: RGD
- SNARE binding Source: RGD
- syntaxin binding Source: RGD
GO - Biological processi
- basement membrane organization Source: RGD
- caveola assembly Source: UniProtKB
- cell differentiation Source: GO_Central
- chemical synaptic transmission Source: RGD
- endoplasmic reticulum organization Source: UniProtKB
- insulin receptor signaling pathway Source: BHF-UCL
- mitochondrion organization Source: UniProtKB
- negative regulation of cell population proliferation Source: RGD
- negative regulation of endothelial cell proliferation Source: RGD
- negative regulation of transforming growth factor beta receptor signaling pathway Source: RGD
- positive regulation by host of viral process Source: RGD
- positive regulation by host of viral release from host cell Source: RGD
- positive regulation of dopamine receptor signaling pathway Source: UniProtKB
- positive regulation of endothelial cell proliferation Source: RGD
- positive regulation of GTPase activity Source: RGD
- positive regulation of MAPK cascade Source: BHF-UCL
- positive regulation of peptidyl-tyrosine phosphorylation Source: BHF-UCL
- positive regulation of protein localization to nucleus Source: BHF-UCL
- receptor-mediated endocytosis of virus by host cell Source: RGD
- regulation of cytosolic calcium ion concentration Source: GO_Central
- regulation of mitotic nuclear division Source: RGD
- skeletal muscle fiber development Source: UniProtKB
- vesicle docking Source: UniProtKB
- vesicle fusion Source: UniProtKB
- vesicle organization Source: RGD
Enzyme and pathway databases
Reactomei | R-RNO-9009391, Extra-nuclear estrogen signaling |
Names & Taxonomyi
Protein namesi | Recommended name: Caveolin-2 |
Gene namesi | Name:Cav2 |
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 |
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Organism-specific databases
RGDi | 620348, Cav2 |
Subcellular locationi
Cytoplasm and Cytosol
Nucleus
Plasma membrane
Golgi apparatus
Other locations
Note: Potential hairpin-like structure in the membrane. Membrane protein of caveolae. Tyr-19-phosphorylated form is enriched at sites of cell-cell contact and, in response to insulin, is translocated to the nucleus in complex with MAPK1. Tyr-27-phosphorylated form is located both in the cytoplasm and plasma membrane. The CAV1-mediated Ser-23-phosphorylated form locates to the plasma membrane. The Ser-36-phosphorylated form resides in intracellular compartments (By similarity).By similarity
Cytosol
- cytosol Source: RGD
Endoplasmic reticulum
- endoplasmic reticulum Source: RGD
Golgi apparatus
- Golgi apparatus Source: BHF-UCL
- Golgi membrane Source: UniProtKB-SubCell
Nucleus
- nuclear envelope Source: BHF-UCL
- nuclear inner membrane Source: BHF-UCL
Plasma Membrane
- caveola Source: RGD
- caveolar macromolecular signaling complex Source: RGD
- extrinsic component of cytoplasmic side of plasma membrane Source: UniProtKB
- integral component of plasma membrane Source: RGD
- plasma membrane Source: BHF-UCL
Other locations
- acrosomal membrane Source: RGD
- cell surface Source: RGD
- cytoplasm Source: RGD
- cytoplasmic vesicle Source: RGD
- lipid droplet Source: RGD
- membrane Source: RGD
- membrane raft Source: BHF-UCL
- perinuclear region of cytoplasm Source: UniProtKB
- protein-containing complex Source: RGD
- synapse Source: GOC
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Topological domaini | 1 – 86 | CytoplasmicSequence analysisAdd BLAST | 86 | |
Intramembranei | 87 – 107 | HelicalSequence analysisAdd BLAST | 21 | |
Topological domaini | 108 – 162 | CytoplasmicSequence analysisAdd BLAST | 55 |
Keywords - Cellular componenti
Cell membrane, Cytoplasm, Golgi apparatus, Membrane, NucleusPathology & Biotechi
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 19 | Y → A: Abolishes phosphorylation, insulin-stimulated interaction with phosphorylated MAPK1, MAPK1 nuclear translocation and activation, reduction of insulin-induced DNA binding of STAT3 but no effect on 'S-727' phosphorylation of STAT3. Completely abolishes phosphorylation, decreases insulin-induced DNA binding and impairs nuclear location of STAT3, inhibits insulin-induced 'S-727' phosphorylation of STAT3, and eliminates binding to RASA1, SRC and NCK1; when associated with A-27. 2 Publications | 1 | |
Mutagenesisi | 27 | Y → A: Abolishes phosphorylation and insulin-induced nuclear location, but no effect on insulin-induced 'S-727' phosphorylation of STAT3 nor on MAPK1 phosphorylation. Completely abolishes insulin-induced phosphorylation, nuclear location, nuclear translocation of MAPK1 and STAT3 and 'S-727' phosphorylation of STAT3 and MAPK1 phosphorylation; when associated with A-19. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000385179 | 1 – 162 | Caveolin-2Add BLAST | 162 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 19 | Phosphotyrosine; by SRC2 Publications | 1 | |
Modified residuei | 20 | PhosphoserineBy similarity | 1 | |
Modified residuei | 23 | PhosphoserineBy similarity | 1 | |
Modified residuei | 27 | Phosphotyrosine; by SRC1 Publication | 1 | |
Modified residuei | 36 | PhosphoserineBy similarity | 1 |
Post-translational modificationi
Keywords - PTMi
PhosphoproteinProteomic databases
PaxDbi | Q2IBC5 |
PRIDEi | Q2IBC5 |
PTM databases
iPTMneti | Q2IBC5 |
PhosphoSitePlusi | Q2IBC5 |
Expressioni
Tissue specificityi
Interactioni
Subunit structurei
Monomer or homodimer (By similarity).
Interacts with CAV1; the interaction forms a stable heterooligomeric complex that is required for targeting to lipid rafts and for caveolae formation. Tyrosine phosphorylated forms do not form heterooligomers with the Tyr-19-phosphorylated form existing as a monomer or dimer and the Tyr-27-form as a monomer only.
Interacts (tyrosine phosphorylated form) with the SH2 domain-containing proteins, RASA1, NCK1 and SRC.
Interacts (tyrosine phosphorylated form) with INSR; the interaction (Tyr-27-phosphorylated form) is increased on insulin stimulation.
Interacts (Tyr-19-phosphorylated form) with MAPK1 (phosphorylated form); the interaction, promoted by insulin, leads to nuclear location and MAPK1 activation.
Interacts with STAT3; the interaction is increased on insulin-induced tyrosine phosphorylation leading to STAT activation.
By similarity2 PublicationsGO - Molecular functioni
- D1 dopamine receptor binding Source: UniProtKB
- mitogen-activated protein kinase kinase kinase binding Source: BHF-UCL
- phosphoprotein binding Source: RGD
- protein heterodimerization activity Source: RGD
- protein homodimerization activity Source: RGD
- protein kinase binding Source: RGD
- scaffold protein binding Source: RGD
- SNARE binding Source: RGD
- syntaxin binding Source: RGD
Protein-protein interaction databases
BioGRIDi | 264175, 4 interactors |
CORUMi | Q2IBC5 |
IntActi | Q2IBC5, 1 interactor |
STRINGi | 10116.ENSRNOP00000008722 |
Family & Domainsi
Sequence similaritiesi
Phylogenomic databases
eggNOGi | ENOG502RZYX, Eukaryota |
InParanoidi | Q2IBC5 |
OrthoDBi | 1468974at2759 |
PhylomeDBi | Q2IBC5 |
TreeFami | TF315736 |
Family and domain databases
InterProi | View protein in InterPro IPR033306, CAV-2 IPR001612, Caveolin IPR018361, Caveolin_CS |
PANTHERi | PTHR10844, PTHR10844, 1 hit PTHR10844:SF3, PTHR10844:SF3, 1 hit |
Pfami | View protein in Pfam PF01146, Caveolin, 1 hit |
PROSITEi | View protein in PROSITE PS01210, CAVEOLIN, 1 hit |
(1+)i Sequence
Sequence statusi: Complete.
This entry has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All
10 20 30 40 50
MGLETEKADV QLFMADDAYS HHSVVDYTDP EKYVDSSQDR DPHQLNSHLK
60 70 80 90 100
LGFEDLIAEP PTTHSFDKVW ICSHALFEIS KYVIYKFLTV FLAIPLAFIA
110 120 130 140 150
GILFATLSCL HIWILMPFVK TCLMVLPSVQ TIWKSVTDVV IGPLCTSVGR
160
IFSSVSMQLS HD
Computationally mapped potential isoform sequencesi
There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basketA0A0A0MXU8 | A0A0A0MXU8_RAT | Caveolin | Cav2 rCG_28162 | 162 | Annotation score: |
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 28 | T → A in AAR16307 (PubMed:12917688).Curated | 1 | |
Sequence conflicti | 29 | D → G in AAL33581 (PubMed:11883949).Curated | 1 | |
Sequence conflicti | 124 | M → V in AAL33581 (PubMed:11883949).Curated | 1 | |
Sequence conflicti | 162 | D → N in AAL33581 (PubMed:11883949).Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF439780 mRNA Translation: AAL33581.1 DP000027 Genomic DNA Translation: AAR16307.1 BC062059 mRNA Translation: AAH62059.1 |
RefSeqi | NP_571989.2, NM_131914.2 |
Genome annotation databases
GeneIDi | 363425 |
KEGGi | rno:363425 |
UCSCi | RGD:620348, rat |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF439780 mRNA Translation: AAL33581.1 DP000027 Genomic DNA Translation: AAR16307.1 BC062059 mRNA Translation: AAH62059.1 |
RefSeqi | NP_571989.2, NM_131914.2 |
3D structure databases
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Protein-protein interaction databases
BioGRIDi | 264175, 4 interactors |
CORUMi | Q2IBC5 |
IntActi | Q2IBC5, 1 interactor |
STRINGi | 10116.ENSRNOP00000008722 |
PTM databases
iPTMneti | Q2IBC5 |
PhosphoSitePlusi | Q2IBC5 |
Proteomic databases
PaxDbi | Q2IBC5 |
PRIDEi | Q2IBC5 |
Genome annotation databases
GeneIDi | 363425 |
KEGGi | rno:363425 |
UCSCi | RGD:620348, rat |
Organism-specific databases
CTDi | 858 |
RGDi | 620348, Cav2 |
Phylogenomic databases
eggNOGi | ENOG502RZYX, Eukaryota |
InParanoidi | Q2IBC5 |
OrthoDBi | 1468974at2759 |
PhylomeDBi | Q2IBC5 |
TreeFami | TF315736 |
Enzyme and pathway databases
Reactomei | R-RNO-9009391, Extra-nuclear estrogen signaling |
Miscellaneous databases
PROi | PR:Q2IBC5 |
Family and domain databases
InterProi | View protein in InterPro IPR033306, CAV-2 IPR001612, Caveolin IPR018361, Caveolin_CS |
PANTHERi | PTHR10844, PTHR10844, 1 hit PTHR10844:SF3, PTHR10844:SF3, 1 hit |
Pfami | View protein in Pfam PF01146, Caveolin, 1 hit |
PROSITEi | View protein in PROSITE PS01210, CAVEOLIN, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | CAV2_RAT | |
Accessioni | Q2IBC5Primary (citable) accession number: Q2IBC5 Secondary accession number(s): Q6P6R8, Q8VIK7 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | September 22, 2009 |
Last sequence update: | September 22, 2009 | |
Last modified: | December 2, 2020 | |
This is version 98 of the entry and version 2 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