O88382 (MAGI2_RAT) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 107.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Membrane-associated guanylate kinase, WW and PDZ domain-containing protein 2 Alternative name(s): Atrophin-1-interacting protein 1 Short name=AIP-1 Membrane-associated guanylate kinase inverted 2 Short name=MAGI-2 Synaptic-scaffolding molecule Short name=S-SCAM | ||||
| Gene names |
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| Organism | Rattus norvegicus (Rat) [Reference proteome] | ||||
| Taxonomic identifier | 10116 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Rattus![]() |
Protein attributes
| Sequence length | 1277 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Seems to act as scaffold molecule at synaptic junctions by assembling neurotransmitter receptors and cell adhesion proteins. May play a role in regulating activin-mediated signaling in neuronal cells. Enhances the ability of PTEN to suppress AKT1 activation By similarity. Ref.1 |
| Subunit structure | Interacts (via its WW domains) with DRPLA By similarity. Interacts with CTNNB1, ACVR2A, SMAD2 and SMAD3 By similarity. Part of a complex consisting of AIP1, ACVR2A, ACVR1B and SMAD3 By similarity. May interact with HTR2A and IGSF9 By similarity. Interacts with HTR4 By similarity. Interacts (via guanylate kinase domain) with DLGAP1. Interacts (via PDZ domains) with GRIN2A, GRID2 and NLGN1. Interacts with CTNND2 and MAGUIN-1. Interacts (via its second PDZ domain) with PTEN (via unphosphorylated C-terminus); this interaction diminishes the degradation rate of PTEN. Interacts with RAPGEF2. Interacts with DDN. Identified in a complex with ACTN4, CASK, IQGAP1, NPHS1, SPTAN1 and SPTBN1. Ref.1 Ref.3 Ref.4 Ref.5 Ref.6 Ref.7 Ref.8 Ref.9 Ref.10 |
| Subcellular location | Cell junction › synapse › synaptosome. Cell membrane; Peripheral membrane protein. Note: Membrane-associated in synaptosomes. Ref.1 |
| Tissue specificity | Expressed in the foot process layer of podocytes of the kidney glomeruli but not in tubules (at protein level). Expressed in the brain. Ref.1 Ref.8 |
| Developmental stage | Expressed during the late capillary loop stage of glomerulogenesis. First detected in junctional complexes in podocytes after their migration to the base of cells. Up-regulated upon foot process differentiation. Ref.8 |
| Sequence similarities | Belongs to the MAGUK family. Contains 1 guanylate kinase-like domain. Contains 5 PDZ (DHR) domains. Contains 2 WW domains. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| DDN | O94850 | 3 | EBI-696179,EBI-5240523 | From a different organism. |
| PTEN | P60484 | 3 | EBI-696179,EBI-696162 | From a different organism. |
Alternative products
| This entry describes 3 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: O88382-1) Also known as: alpha; 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. | ||||||
| Isoform 2 (identifier: O88382-2) Also known as: beta; The sequence of this isoform differs from the canonical sequence as follows: 1-163: Missing. | ||||||
| Isoform 3 (identifier: O88382-3) Also known as: gamma; The sequence of this isoform differs from the canonical sequence as follows: 1-223: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1277 | 1277 | Membrane-associated guanylate kinase, WW and PDZ domain-containing protein 2 | PRO_0000094588 | |||||
Regions | |||||||||
| Domain | 17 – 101 | 85 | PDZ | ||||||
| Domain | 109 – 283 | 175 | Guanylate kinase-like | ||||||
| Domain | 302 – 335 | 34 | WW 1 | ||||||
| Domain | 348 – 381 | 34 | WW 2 | ||||||
| Domain | 426 – 510 | 85 | PDZ 1 | ||||||
| Domain | 605 – 683 | 79 | PDZ 2 | ||||||
| Domain | 778 – 860 | 83 | PDZ 3 | ||||||
| Domain | 920 – 1010 | 91 | PDZ 4 | ||||||
| Domain | 1141 – 1223 | 83 | PDZ 5 | ||||||
| Region | 302 – 381 | 80 | Interaction with DDN By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 362 | 1 | Phosphotyrosine By similarity | ||||||
| Modified residue | 366 | 1 | Phosphotyrosine By similarity | ||||||
| Modified residue | 827 | 1 | Phosphotyrosine By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 223 | 223 | Missing in isoform 3. | VSP_008439 | |||||
| Alternative sequence | 1 – 163 | 163 | Missing in isoform 2. | VSP_008438 | |||||
Experimental info | |||||||||
| Sequence conflict | 645 | 1 | L → F in AAD31015. Ref.2 | ||||||
Sequences
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References
| [1] | "A novel multiple PDZ domain-containing molecule interacting with N-methyl-d-aspartate receptors and neuronal cell adhesion proteins." Hirao K., Hata Y., Ide N., Takeuchi M., Irie M., Yao I., Deguchi M., Toyoda A., Suedhof T.C., Takai Y. J. Biol. Chem. 273:21105-21110(1998) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, INTERACTION WITH DLGAP1; NLGN1 AND GRIN2A. |
| [2] | "Three isoforms of synaptic scaffolding molecule and their characterization: multimerization between the isoforms and their interaction with N-methyl-D-aspartate receptors and SAP90/PSD-95-associated protein." Hirao K., Hata Y., Yao I., Deguchi M., Kawabe H., Mizoguchi A., Takai Y. J. Biol. Chem. 275:2966-2972(2000) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), ALTERNATIVE SPLICING (ISOFORM 3). |
| [3] | "Interaction of S-SCAM with neural plakophilin-related Armadillo-repeat protein/delta-catenin." Ide N., Hata Y., Deguchi M., Hirao K., Yao I., Takai Y. Biochem. Biophys. Res. Commun. 256:456-461(1999) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH CTNND2. |
| [4] | "nRap GEP: a novel neural GDP/GTP exchange protein for rap1 small G protein that interacts with synaptic scaffolding molecule (S-SCAM)." Ohtsuka T., Hata Y., Ide N., Yasuda T., Inoue E., Inoue T., Mizoguchi A., Takai Y. Biochem. Biophys. Res. Commun. 265:38-44(1999) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH RAPGEF2. |
| [5] | "MAGUIN, a novel neuronal membrane-associated guanylate kinase-interacting protein." Yao I., Hata Y., Ide N., Hirao K., Deguchi M., Nishioka H., Mizoguchi A., Takai Y. J. Biol. Chem. 274:11889-11896(1999) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH MAGUIN-1. |
| [6] | "PKC regulates the delta2 glutamate receptor interaction with S-SCAM/MAGI-2 protein." Yap C.C., Muto Y., Kishida H., Hashikawa T., Yano R. Biochem. Biophys. Res. Commun. 301:1122-1128(2003) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH GRID2. |
| [7] | "Binding of PTEN to specific PDZ domains contributes to PTEN protein stability and phosphorylation by microtubule-associated serine/threonine kinases." Valiente M., Andres-Pons A., Gomar B., Torres J., Gil A., Tapparel C., Antonarakis S.E., Pulido R. J. Biol. Chem. 280:28936-28943(2005) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH PTEN. |
| [8] | "Cell junction-associated proteins IQGAP1, MAGI-2, CASK, spectrins, and alpha-actinin are components of the nephrin multiprotein complex." Lehtonen S., Ryan J.J., Kudlicka K., Iino N., Zhou H., Farquhar M.G. Proc. Natl. Acad. Sci. U.S.A. 102:9814-9819(2005) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION IN A COMPLEX WITH ACTN4; CASK; IQGAP1; NPHS1; SPTAN1 AND SPTBN1, IDENTIFICATION BY MASS SPECTROMETRY, TISSUE SPECIFICITY, DEVELOPMENTAL STAGE. Strain: Sprague-Dawley. Tissue: Renal glomerulus. |
| [9] | "CIN85 is localized at synapses and forms a complex with S-SCAM via dendrin." Kawata A., Iida J., Ikeda M., Sato Y., Mori H., Kansaku A., Sumita K., Fujiwara N., Rokukawa C., Hamano M., Hirabayashi S., Hata Y. J. Biochem. 139:931-939(2006) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH DDN. |
| [10] | "Postsynaptic recruitment of Dendrin depends on both dendritic mRNA transport and synaptic anchoring." Kremerskothen J., Kindler S., Finger I., Veltel S., Barnekow A. J. Neurochem. 96:1659-1666(2006) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH DDN. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF034863 mRNA. Translation: AAC31124.1. AF130819 mRNA. Translation: AAD31015.1. |
| IPI | IPI00208755. IPI00382118. IPI00950201. |
| PIR | T14152. |
| RefSeq | NP_446073.1. NM_053621.1. |
| UniGene | Rn.205058. |
3D structure databases | |
| ProteinModelPortal | O88382. |
| SMR | O88382. Positions 303-340, 347-395, 412-522, 594-682, 769-865, 916-1021, 1135-1230. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | O88382. 6 interactions. |
| MINT | MINT-87246. |
| STRING | 10116.ENSRNOP00000036634. |
PTM databases | |
| PhosphoSite | O88382. |
Proteomic databases | |
| PaxDb | O88382. |
| PRIDE | O88382. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| GeneID | 113970. |
| KEGG | rno:113970. |
Organism-specific databases | |
| CTD | 9863. |
| RGD | 621855. Magi2. |
Phylogenomic databases | |
| eggNOG | COG5021. |
| HOGENOM | HOG000113463. |
| HOVERGEN | HBG007091. |
| InParanoid | O88382. |
| KO | K05629. |
Gene expression databases | |
| ArrayExpress | O88382. |
| Genevestigator | O88382. |
Family and domain databases | |
| InterPro | IPR008144. Guanylate_kin. IPR008145. Guanylate_kin/L-typ_Ca_channel. IPR020590. Guanylate_kinase_CS. IPR001478. PDZ. IPR001202. WW_dom. [Graphical view] |
| Pfam | PF00625. Guanylate_kin. 1 hit. PF00595. PDZ. 6 hits. PF00397. WW. 2 hits. [Graphical view] |
| SMART | SM00072. GuKc. 1 hit. SM00228. PDZ. 6 hits. SM00456. WW. 2 hits. [Graphical view] |
| SUPFAM | SSF50156. PDZ. 6 hits. SSF51045. WW_Rsp5_WWP. 1 hit. |
| PROSITE | PS00856. GUANYLATE_KINASE_1. 1 hit. PS50052. GUANYLATE_KINASE_2. 1 hit. PS50106. PDZ. 6 hits. PS01159. WW_DOMAIN_1. 2 hits. PS50020. WW_DOMAIN_2. 2 hits. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 618109. |
Entry information
| Entry name | MAGI2_RAT | ||||||||
| Accession | Primary (citable) accession number: O88382 Secondary accession number(s): Q9R271 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| SIMILARITY comments Index of protein domains and families |

Clusters with
