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P30875

- SSR2_MOUSE

UniProt

P30875 - SSR2_MOUSE

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Protein
Somatostatin receptor type 2
Gene
Sstr2, Smstr2, Sst2
Organism
Mus musculus (Mouse)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at transcript leveli

Functioni

Receptor for somatostatin-14 and -28. This receptor is coupled via pertussis toxin sensitive G proteins to inhibition of adenylyl cyclase. In addition it stimulates phosphotyrosine phosphatase and PLC via pertussis toxin insensitive as well as sensitive G proteins. Inhibits calcium entry by suppressing voltage-dependent calcium channels. Acts as the functionally dominant somatostatin receptor in pancreatic alpha- and beta-cells where it mediates the inhibitory effect of somatostatin-14 on hormone secretion. Inhibits cell growth through enhancement of MAPK1 and MAPK2 phosphorylation and subsequent up-regulation of CDKN1B. Stimulates neuronal migration and axon outgrowth and may participate in neuron development and maturation during brain development. Mediates negative regulation of insulin receptor signaling through PTPN6. Inactivates SSTR3 receptor function following heterodimerization.2 Publications

GO - Molecular functioni

  1. somatostatin receptor activity Source: MGI

GO - Biological processi

  1. G-protein coupled receptor signaling pathway Source: MGI
  2. adenylate cyclase-inhibiting G-protein coupled receptor signaling pathway Source: MGI
  3. cellular response to estradiol stimulus Source: Ensembl
  4. cellular response to glucocorticoid stimulus Source: Ensembl
  5. cerebellum development Source: Ensembl
  6. forebrain development Source: Ensembl
  7. neuropeptide signaling pathway Source: MGI
  8. peristalsis Source: Ensembl
  9. regulation of muscle contraction Source: Ensembl
  10. response to starvation Source: Ensembl
  11. spermatogenesis Source: Ensembl
Complete GO annotation...

Keywords - Molecular functioni

G-protein coupled receptor, Receptor, Transducer

Names & Taxonomyi

Protein namesi
Recommended name:
Somatostatin receptor type 2
Short name:
SS-2-R
Short name:
SS2-R
Short name:
SS2R
Alternative name(s):
SRIF-1
Gene namesi
Name:Sstr2
Synonyms:Smstr2, Sst2
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeMusMus
ProteomesiUP000000589: Chromosome 11

Organism-specific databases

MGIiMGI:98328. Sstr2.

Subcellular locationi

Cell membrane; Multi-pass membrane protein. Cytoplasm By similarity
Note: Located mainly at the cell surface under basal conditions. Agonist stimulation results in internalization to the cytoplasm By similarity.1 Publication

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini1 – 4343Extracellular Reviewed prediction
Add
BLAST
Transmembranei44 – 6724Helical; Name=1; Reviewed prediction
Add
BLAST
Topological domaini68 – 7811Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei79 – 10325Helical; Name=2; Reviewed prediction
Add
BLAST
Topological domaini104 – 11815Extracellular Reviewed prediction
Add
BLAST
Transmembranei119 – 13820Helical; Name=3; Reviewed prediction
Add
BLAST
Topological domaini139 – 16123Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei162 – 18120Helical; Name=4; Reviewed prediction
Add
BLAST
Topological domaini182 – 20726Extracellular Reviewed prediction
Add
BLAST
Transmembranei208 – 22922Helical; Name=5; Reviewed prediction
Add
BLAST
Topological domaini230 – 25324Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei254 – 27825Helical; Name=6; Reviewed prediction
Add
BLAST
Topological domaini279 – 28810Extracellular Reviewed prediction
Transmembranei289 – 30315Helical; Name=7; Reviewed prediction
Add
BLAST
Topological domaini304 – 36966Cytoplasmic Reviewed prediction
Add
BLAST

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
  2. integral component of membrane Source: UniProtKB-KW
  3. membrane Source: MGI
  4. plasma membrane Source: MGI
Complete GO annotation...

Keywords - Cellular componenti

Cell membrane, Cytoplasm, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 369369Somatostatin receptor type 2
PRO_0000070121Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Glycosylationi9 – 91N-linked (GlcNAc...) Reviewed prediction
Glycosylationi22 – 221N-linked (GlcNAc...) Reviewed prediction
Glycosylationi29 – 291N-linked (GlcNAc...) Reviewed prediction
Glycosylationi32 – 321N-linked (GlcNAc...) Reviewed prediction
Disulfide bondi115 ↔ 193 By similarity
Lipidationi328 – 3281S-palmitoyl cysteine Reviewed prediction
Modified residuei341 – 3411Phosphoserine By similarity
Modified residuei343 – 3431Phosphoserine By similarity
Modified residuei348 – 3481Phosphoserine By similarity
Modified residuei353 – 3531Phosphothreonine By similarity
Modified residuei354 – 3541Phosphothreonine By similarity

Post-translational modificationi

Phosphorylated on serine and threonine residues in response to agonist stimulation, leading to receptor desensitization and rapid internalization. Phosphorylated to a greater extent on serine than threonine residues. Threonine phosphorylation is required for arrestin binding and receptor endocytosis but is not necessary for desensitization By similarity.

Keywords - PTMi

Disulfide bond, Glycoprotein, Lipoprotein, Palmitate, Phosphoprotein

Proteomic databases

PRIDEiP30875.

PTM databases

PhosphoSiteiP30875.

Expressioni

Tissue specificityi

Cerebrum and kidney.

Gene expression databases

BgeeiP30875.
CleanExiMM_SSTR2.
GenevestigatoriP30875.

Interactioni

Subunit structurei

Homodimer and heterodimer with SSTR3 and SSTR5. Heterodimerization with SSTR3 inactivates SSTR3 receptor function. Heterodimerization with SSTR5 is enhanced by agonist stimulation of SSTR2 and increases SSTR2 cell growth inhibition activity. Following agonist stimulation, homodimers dissociate into monomers which is required for receptor internalization. Interacts with beta-arrestin; this interaction is necessary for receptor internalization and is destabilized by heterodimerization with SSTR5 which results in increased recycling of SSTR2 to the cell surface. Interacts (via C-terminus) with SHANK1 (via PDZ domain) By similarity.

Protein-protein interaction databases

IntActiP30875. 2 interactions.
MINTiMINT-4590521.

Structurei

3D structure databases

ProteinModelPortaliP30875.
SMRiP30875. Positions 40-328.

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiNOG274661.
GeneTreeiENSGT00630000089736.
HOGENOMiHOG000230485.
HOVERGENiHBG106919.
InParanoidiP30875.
KOiK04218.
OMAiVIMPIMI.
OrthoDBiEOG7BKCVQ.
PhylomeDBiP30875.
TreeFamiTF315737.

Family and domain databases

Gene3Di1.20.1070.10. 1 hit.
InterProiIPR000276. GPCR_Rhodpsn.
IPR017452. GPCR_Rhodpsn_7TM.
IPR000586. Somatstn_rcpt.
IPR002074. Somatstn_rcpt_2.
[Graphical view]
PfamiPF00001. 7tm_1. 1 hit.
[Graphical view]
PRINTSiPR00237. GPCRRHODOPSN.
PR00246. SOMATOSTATNR.
PR00588. SOMATOSTTN2R.
PROSITEiPS00237. G_PROTEIN_RECEP_F1_1. 1 hit.
PS50262. G_PROTEIN_RECEP_F1_2. 1 hit.
[Graphical view]

Sequences (2)i

Sequence statusi: Complete.

This entry describes 2 isoformsi produced by alternative splicing. Align

Isoform A (identifier: P30875-1) [UniParc]FASTAAdd to Basket

Also known as: SS2RA

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

MEMSSEQLNG SQVWVSSPFD LNGSLGPSNG SNQTEPYYDM TSNAVLTFIY    50
FVVCVVGLCG NTLVIYVILR YAKMKTITNI YILNLAIADE LFMLGLPFLA 100
MQVALVHWPF GKAICRVVMT VDGINQFTSI FCLTVMSIDR YLAVVHPIKS 150
AKWRRPRTAK MINVAVWCVS LLVILPIMIY AGLRSNQWGR SSCTINWPGE 200
SGAWYTGFII YAFILGFLVP LTIICLCYLF IIIKVKSSGI RVGSSKRKKS 250
EKKVTRMVSI VVAVFIFCWL PFYIFNVSSV SVAISPTPAL KGMFDFVVIL 300
TYANSCANPI LYAFLSDNFK KSFQNVLCLV KVSGTEDGER SDSKQDKSRL 350
NETTETQRTL LNGDLQTSI 369
Length:369
Mass (Da):41,222
Last modified:July 1, 1993 - v1
Checksum:iA78845AF74823039
GO
Isoform B (identifier: P30875-2) [UniParc]FASTAAdd to Basket

Also known as: SS2RB

The sequence of this isoform differs from the canonical sequence as follows:
     332-369: VSGTEDGERSDSKQDKSRLNETTETQRTLLNGDLQTSI → ADNSQSGAEDIIAWV

Show »
Length:346
Mass (Da):38,587
Checksum:iD7A20AEC1371C400
GO

Alternative sequence

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Alternative sequencei332 – 36938VSGTE…LQTSI → ADNSQSGAEDIIAWV in isoform B.
VSP_001923Add
BLAST

Sequence conflict

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti179 – 1791I → L in CAA48766. 1 Publication
Sequence conflicti305 – 3051S → T in CAA48766. 1 Publication

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
M81832 Genomic DNA. Translation: AAA58256.1.
X68951 mRNA. Translation: CAA48766.1.
AF008914 Genomic DNA. Translation: AAD01419.1.
AF008914 Genomic DNA. Translation: AAD01420.1.
S71756 mRNA. Translation: AAP20804.1.
CCDSiCCDS25598.1. [P30875-2]
CCDS59571.1. [P30875-1]
PIRiD41795.
S29248.
RefSeqiNP_001036071.1. NM_001042606.2. [P30875-1]
NP_033243.2. NM_009217.4. [P30875-2]

Genome annotation databases

EnsembliENSMUST00000067591; ENSMUSP00000068578; ENSMUSG00000047904. [P30875-2]
ENSMUST00000106630; ENSMUSP00000102241; ENSMUSG00000047904. [P30875-2]
ENSMUST00000146390; ENSMUSP00000138101; ENSMUSG00000047904. [P30875-1]
GeneIDi20606.
KEGGimmu:20606.
UCSCiuc011yha.1. mouse. [P30875-1]

Keywords - Coding sequence diversityi

Alternative splicing

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
M81832 Genomic DNA. Translation: AAA58256.1 .
X68951 mRNA. Translation: CAA48766.1 .
AF008914 Genomic DNA. Translation: AAD01419.1 .
AF008914 Genomic DNA. Translation: AAD01420.1 .
S71756 mRNA. Translation: AAP20804.1 .
CCDSi CCDS25598.1. [P30875-2 ]
CCDS59571.1. [P30875-1 ]
PIRi D41795.
S29248.
RefSeqi NP_001036071.1. NM_001042606.2. [P30875-1 ]
NP_033243.2. NM_009217.4. [P30875-2 ]

3D structure databases

ProteinModelPortali P30875.
SMRi P30875. Positions 40-328.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

IntActi P30875. 2 interactions.
MINTi MINT-4590521.

Chemistry

BindingDBi P30875.
ChEMBLi CHEMBL3207.
GuidetoPHARMACOLOGYi 356.

Protein family/group databases

GPCRDBi Search...

PTM databases

PhosphoSitei P30875.

Proteomic databases

PRIDEi P30875.

Protocols and materials databases

DNASUi 20606.
Structural Biology Knowledgebase Search...

Genome annotation databases

Ensembli ENSMUST00000067591 ; ENSMUSP00000068578 ; ENSMUSG00000047904 . [P30875-2 ]
ENSMUST00000106630 ; ENSMUSP00000102241 ; ENSMUSG00000047904 . [P30875-2 ]
ENSMUST00000146390 ; ENSMUSP00000138101 ; ENSMUSG00000047904 . [P30875-1 ]
GeneIDi 20606.
KEGGi mmu:20606.
UCSCi uc011yha.1. mouse. [P30875-1 ]

Organism-specific databases

CTDi 6752.
MGIi MGI:98328. Sstr2.

Phylogenomic databases

eggNOGi NOG274661.
GeneTreei ENSGT00630000089736.
HOGENOMi HOG000230485.
HOVERGENi HBG106919.
InParanoidi P30875.
KOi K04218.
OMAi VIMPIMI.
OrthoDBi EOG7BKCVQ.
PhylomeDBi P30875.
TreeFami TF315737.

Miscellaneous databases

NextBioi 298949.
PROi P30875.
SOURCEi Search...

Gene expression databases

Bgeei P30875.
CleanExi MM_SSTR2.
Genevestigatori P30875.

Family and domain databases

Gene3Di 1.20.1070.10. 1 hit.
InterProi IPR000276. GPCR_Rhodpsn.
IPR017452. GPCR_Rhodpsn_7TM.
IPR000586. Somatstn_rcpt.
IPR002074. Somatstn_rcpt_2.
[Graphical view ]
Pfami PF00001. 7tm_1. 1 hit.
[Graphical view ]
PRINTSi PR00237. GPCRRHODOPSN.
PR00246. SOMATOSTATNR.
PR00588. SOMATOSTTN2R.
PROSITEi PS00237. G_PROTEIN_RECEP_F1_1. 1 hit.
PS50262. G_PROTEIN_RECEP_F1_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Cloning and functional characterization of a family of human and mouse somatostatin receptors expressed in brain, gastrointestinal tract, and kidney."
    Yamada Y., Post S.R., Wang K., Tager H.S., Bell G.I., Seino S.
    Proc. Natl. Acad. Sci. U.S.A. 89:251-255(1992) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORM A).
  2. "Cloning and expression of a novel mouse somatostatin receptor (SSTR2B)."
    Vanetti M., Kouba M., Wang X., Vogt G., Hoellt V.
    FEBS Lett. 311:290-294(1992) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORM B).
  3. "Transcriptional activation of mouse sst2 somatostatin receptor promoter by transforming growth factor-beta. Involvement of Smad4."
    Puente E., Saint-Laurent N., Torrisani J., Furet C., Schally A.V., Vaysse N., Buscail L., Susini C.
    J. Biol. Chem. 276:13461-13468(2001) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], ALTERNATIVE SPLICING (ISOFORMS A AND B).
    Strain: 129.
    Tissue: Liver.
  4. "T lymphocytes isolated from the hepatic granulomas of schistosome-infected mice express somatostatin receptor subtype II (SSTR2) messenger RNA."
    Elliott D.E., Metwali A., Blum A.M., Sandor M., Lynch R., Weinstock J.V.
    J. Immunol. 153:1180-1186(1994) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 99-309 (ISOFORMS A/B).
  5. "The two isoforms of the mouse somatostatin receptor (mSSTR2A and mSSTR2B) differ in coupling efficiency to adenylate cyclase and in agonist-induced receptor desensitization."
    Vanetti M., Hoellt V.
    FEBS Lett. 331:260-266(1993) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION, SUBCELLULAR LOCATION, ALTERNATIVE SPLICING (ISOFORMS A AND B).
  6. "sst2 somatostatin receptor mediates negative regulation of insulin receptor signaling through the tyrosine phosphatase SHP-1."
    Bousquet C., Delesque N., Lopez F., Saint-Laurent N., Esteve J.P., Bedecs K., Buscail L., Vaysse N., Susini C.
    J. Biol. Chem. 273:7099-7106(1998) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION.

Entry informationi

Entry nameiSSR2_MOUSE
AccessioniPrimary (citable) accession number: P30875
Secondary accession number(s): P30934, Q91Y73
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 1, 1993
Last sequence update: July 1, 1993
Last modified: July 9, 2014
This is version 135 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. 7-transmembrane G-linked receptors
    List of 7-transmembrane G-linked receptor entries
  2. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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