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Reviewed, UniProtKB/Swiss-Prot Q86UL8 (MAGI2_HUMAN)

Last modified February 9, 2010. Version 80. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (4) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Membrane-associated guanylate kinase, WW and PDZ domain-containing protein 2
Alternative name(s):
    Membrane-associated guanylate kinase inverted 2
      Short name=MAGI-2
    Atrophin-1-interacting protein 1
      Short name=AIP-1
    Atrophin-1-interacting protein A
Gene names
Name: MAGI2
Synonyms: ACVRINP1, AIP1, KIAA0705
OrganismHomo sapiens (Human) [Complete proteome]
Taxonomic identifier9606 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

Protein attributes

Sequence length1455 AA.
Sequence statusComplete.
Protein existenceEvidence 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. Ref.6

Subunit structure

Interacts via its WW domains with DRPLA. Interacts via its second PDZ domain with PTEN unphosphorylated C-terminus; this interaction diminishes the degradation rate of PTEN By similarity. Interacts through its guanylate kinase domain with DLGAP1 By similarity. Interacts through the PDZ domains with GRIN2A, GRID2 and NLGN1 By similarity. Interacts with CTNND2, CTNNB1, MAGUIN-1, ACVR2A, SMAD2 and SMAD3 By similarity. Part of a complex consisting of AIP1, ACVR2A, ACVR1B and SMAD3 By similarity. May interact with HTR2A By similarity. Interacts with IGSF9, RAPGEF2 and HTR4 By similarity. Interacts with DDN. Ref.6 Ref.1 Ref.7 Ref.8

Subcellular location

Cell junctionsynapsesynaptosome By similarity. Cell membrane; Peripheral membrane protein By similarity. Note: Membrane-associated in synaptosomes By similarity. Ref.6

Tissue specificity

Specifically expressed in brain. Ref.1

Sequence similarities

Belongs to the MAGUK family.

Contains 1 guanylate kinase-like domain.

Contains 6 PDZ (DHR) domains.

Contains 2 WW domains.

Ontologies

Keywords
   Cellular componentCell junction
Cell membrane
Membrane
Synapse
Synaptosome
   Coding sequence diversityAlternative splicing
   DomainRepeat
   PTMPhosphoprotein
   Technical term3D-structure
Complete proteome
Gene Ontology (GO)
   Cellular componentcell junction

Inferred from electronic annotation. Source: UniProtKB-KW

extrinsic to membrane

Inferred from electronic annotation. Source: UniProtKB-SubCell

synapse

Inferred from electronic annotation. Source: UniProtKB-KW

synaptosome

Inferred from electronic annotation. Source: UniProtKB-SubCell

   Molecular functionphosphatase binding Ref.6

Inferred from physical interaction. Source: UniProtKB

Complete GO annotation...

Alternative products

This entry describes 2 isoforms produced by alternative splicing. [Align] [Select]
Isoform 1 (identifier: Q86UL8-1)

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: Q86UL8-2)

The sequence of this isoform differs from the canonical sequence as follows:
     757-771: QQVPPRTSFRMDSSG → R

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 14551455Membrane-associated guanylate kinase, WW and PDZ domain-containing protein 2
PRO_0000094586

Regions

Domain17 – 10185PDZ 1
Domain109 – 283175Guanylate kinase-like
Domain302 – 33534WW 1
Domain348 – 38134WW 2
Domain426 – 51085PDZ 2
Domain605 – 68379PDZ 3
Domain778 – 86083PDZ 4
Domain920 – 101091PDZ 5
Domain1147 – 122983PDZ 6
Region302 – 38180Interaction with DDN
Compositional bias1015 – 1118104Pro-rich
Compositional bias1340 – 143091Ala-rich

Amino acid modifications

Modified residue3621Phosphotyrosine By similarity
Modified residue3661Phosphotyrosine By similarity
Modified residue8271Phosphotyrosine By similarity
Modified residue10141Phosphoserine By similarity

Natural variations

Alternative sequence757 – 77115QQVPP…MDSSG → R in isoform 2.
VSP_008435

Experimental info

Sequence conflict12341E → Q in AAC05370. Ref.1
Sequence conflict12501G → C in AAC05370. Ref.1
Sequence conflict12911E → K in AAC05370. Ref.1
Sequence conflict13831P → L in AAC05370. Ref.1
Sequence conflict1389 – 13946FAGPGG → SADPAD in AAC05370. Ref.1
Sequence conflict14011E → A in AAC05370. Ref.1
Sequence conflict14111G → A in AAC05370. Ref.1
Sequence conflict1414 – 14152PG → SV in AAC05370. Ref.1
Sequence conflict14201G → A in AAC05370. Ref.1
Sequence conflict14231P → A in AAC05370. Ref.1
Sequence conflict14261K → R in AAC05370. Ref.1
Sequence conflict14291V → G in AAC05370. Ref.1
Sequence conflict14371P → R in AAC05370. Ref.1

Secondary structure

................................................................................. 1455
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
Isoform 1 [UniParc].

Last modified February 7, 2006. Version 3.
Checksum: 93E170D070A70A9C

FASTA1,455158,754
        10         20         30         40         50         60 
MSKSLKKKSH WTSKVHESVI GRNPEGQLGF ELKGGAENGQ FPYLGEVKPG KVAYESGSKL 

        70         80         90        100        110        120 
VSEELLLEVN ETPVAGLTIR DVLAVIKHCK DPLRLKCVKQ GGIVDKDLRH YLNLRFQKGS 

       130        140        150        160        170        180 
VDHELQQIIR DNLYLRTVPC TTRPHKEGEV PGVDYIFITV EDFMELEKSG ALLESGTYED 

       190        200        210        220        230        240 
NYYGTPKPPA EPAPLLLNVT DQILPGATPS AEGKRKRNKS VSNMEKASIE PPEEEEEERP 

       250        260        270        280        290        300 
VVNGNGVVVT PESSEHEDKS AGASGEMPSQ PYPAPVYSQP EELKEQMDDT KPTKPEDNEE 

       310        320        330        340        350        360 
PDPLPDNWEM AYTEKGEVYF IDHNTKTTSW LDPRLAKKAK PPEECKENEL PYGWEKIDDP 

       370        380        390        400        410        420 
IYGTYYVDHI NRRTQFENPV LEAKRKLQQH NMPHTELGTK PLQAPGFREK PLFTRDASQL 

       430        440        450        460        470        480 
KGTFLSTTLK KSNMGFGFTI IGGDEPDEFL QVKSVIPDGP AAQDGKMETG DVIVYINEVC 

       490        500        510        520        530        540 
VLGHTHADVV KLFQSVPIGQ SVNLVLCRGY PLPFDPEDPA NSMVPPLAIM ERPPPVMVNG 

       550        560        570        580        590        600 
RHNYETYLEY ISRTSQSVPD ITDRPPHSLH SMPTDGQLDG TYPPPVHDDN VSMASSGATQ 

       610        620        630        640        650        660 
AELMTLTIVK GAQGFGFTIA DSPTGQRVKQ ILDIQGCPGL CEGDLIVEIN QQNVQNLSHT 

       670        680        690        700        710        720 
EVVDILKDCP IGSETSLIIH RGGFFSPWKT PKPIMDRWEN QGSPQTSLSA PAIPQNLPFP 

       730        740        750        760        770        780 
PALHRSSFPD STEAFDPRKP DPYELYEKSR AIYESRQQVP PRTSFRMDSS GPDYKELDVH 

       790        800        810        820        830        840 
LRRMESGFGF RILGGDEPGQ PILIGAVIAM GSADRDGRLH PGDELVYVDG IPVAGKTHRY 

       850        860        870        880        890        900 
VIDLMHHAAR NGQVNLTVRR KVLCGGEPCP ENGRSPGSVS THHSSPRSDY ATYTNSNHAA 

       910        920        930        940        950        960 
PSSNASPPEG FASHSLQTSD VVIHRKENEG FGFVIISSLN RPESGSTITV PHKIGRIIDG 

       970        980        990       1000       1010       1020 
SPADRCAKLK VGDRILAVNG QSIINMPHAD IVKLIKDAGL SVTLRIIPQE ELNSPTSAPS 

      1030       1040       1050       1060       1070       1080 
SEKQSPMAQQ SPLAQQSPLA QPSPATPNSP IAQPAPPQPL QLQGHENSYR SEVKARQDVK 

      1090       1100       1110       1120       1130       1140 
PDIRQPPFTD YRQPPLDYRQ PPGGDYQQPP PLDYRQPPLL DYRQHSPDTR QYPLSDYRQP 

      1150       1160       1170       1180       1190       1200 
QDFDYFTVDM EKGAKGFGFS IRGGREYKMD LYVLRLAEDG PAIRNGRMRV GDQIIEINGE 

      1210       1220       1230       1240       1250       1260 
STRDMTHARA IELIKSGGRR VRLLLKRGTG QVPEYDEPAP WSSPAAAAPG LPEVGVSLDD 

      1270       1280       1290       1300       1310       1320 
GLAPFSPSHP APPSDPSHQI SPGPTWDIKR EHDVRKPKEL SACGQKKQRL GEQRERSASP 

      1330       1340       1350       1360       1370       1380 
QRAARPRLEE APGGQGRPEA GRPASEARAP GLAAADAADA ARAGGKEAPR AAAGSELCRR 

      1390       1400       1410       1420       1430       1440 
EGPGAAPAFA GPGGGGSGAL EAEGRAGARA GPRPGPRPPG GAPARKAAVA PGPWKVPGSD 

      1450 
KLPSVLKPGA SAASR 

« Hide

Isoform 2.

Checksum: 505C382255497AFE
Show »

FASTA1,441157,236

References

« Hide 'large scale' references
[1]"Atrophin-1, the DRPLA gene product, interacts with two families of WW domain-containing proteins."
Wood J.D., Yuan J., Margolis R.L., Colomer V., Duan K., Kushi J., Kaminsky Z., Kleiderlein J.J. Jr., Sharp A.H., Ross C.A.
Mol. Cell. Neurosci. 11:149-160(1998) [PubMed: 9647693] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), TISSUE SPECIFICITY, INTERACTION WITH DRPLA.
Tissue: Brain.
[2]"Prediction of the coding sequences of unidentified human genes. X. The complete sequences of 100 new cDNA clones from brain which can code for large proteins in vitro."
Ishikawa K., Nagase T., Suyama M., Miyajima N., Tanaka A., Kotani H., Nomura N., Ohara O.
DNA Res. 5:169-176(1998) [PubMed: 9734811] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2).
Tissue: Brain.
[3]"The DNA sequence of human chromosome 7."
Hillier L.W., Fulton R.S., Fulton L.A., Graves T.A., Pepin K.H., Wagner-McPherson C., Layman D., Maas J., Jaeger S., Walker R., Wylie K., Sekhon M., Becker M.C., O'Laughlin M.D., Schaller M.E., Fewell G.A., Delehaunty K.D., Miner T.L. expand/collapse author list , Nash W.E., Cordes M., Du H., Sun H., Edwards J., Bradshaw-Cordum H., Ali J., Andrews S., Isak A., Vanbrunt A., Nguyen C., Du F., Lamar B., Courtney L., Kalicki J., Ozersky P., Bielicki L., Scott K., Holmes A., Harkins R., Harris A., Strong C.M., Hou S., Tomlinson C., Dauphin-Kohlberg S., Kozlowicz-Reilly A., Leonard S., Rohlfing T., Rock S.M., Tin-Wollam A.-M., Abbott A., Minx P., Maupin R., Strowmatt C., Latreille P., Miller N., Johnson D., Murray J., Woessner J.P., Wendl M.C., Yang S.-P., Schultz B.R., Wallis J.W., Spieth J., Bieri T.A., Nelson J.O., Berkowicz N., Wohldmann P.E., Cook L.L., Hickenbotham M.T., Eldred J., Williams D., Bedell J.A., Mardis E.R., Clifton S.W., Chissoe S.L., Marra M.A., Raymond C., Haugen E., Gillett W., Zhou Y., James R., Phelps K., Iadanoto S., Bubb K., Simms E., Levy R., Clendenning J., Kaul R., Kent W.J., Furey T.S., Baertsch R.A., Brent M.R., Keibler E., Flicek P., Bork P., Suyama M., Bailey J.A., Portnoy M.E., Torrents D., Chinwalla A.T., Gish W.R., Eddy S.R., McPherson J.D., Olson M.V., Eichler E.E., Green E.D., Waterston R.H., Wilson R.K.
Nature 424:157-164(2003) [PubMed: 12853948] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[4]"Human chromosome 7: DNA sequence and biology."
Scherer S.W., Cheung J., MacDonald J.R., Osborne L.R., Nakabayashi K., Herbrick J.-A., Carson A.R., Parker-Katiraee L., Skaug J., Khaja R., Zhang J., Hudek A.K., Li M., Haddad M., Duggan G.E., Fernandez B.A., Kanematsu E., Gentles S. expand/collapse author list , Christopoulos C.C., Choufani S., Kwasnicka D., Zheng X.H., Lai Z., Nusskern D.R., Zhang Q., Gu Z., Lu F., Zeesman S., Nowaczyk M.J., Teshima I., Chitayat D., Shuman C., Weksberg R., Zackai E.H., Grebe T.A., Cox S.R., Kirkpatrick S.J., Rahman N., Friedman J.M., Heng H.H.Q., Pelicci P.G., Lo-Coco F., Belloni E., Shaffer L.G., Pober B., Morton C.C., Gusella J.F., Bruns G.A.P., Korf B.R., Quade B.J., Ligon A.H., Ferguson H., Higgins A.W., Leach N.T., Herrick S.R., Lemyre E., Farra C.G., Kim H.-G., Summers A.M., Gripp K.W., Roberts W., Szatmari P., Winsor E.J.T., Grzeschik K.-H., Teebi A., Minassian B.A., Kere J., Armengol L., Pujana M.A., Estivill X., Wilson M.D., Koop B.F., Tosi S., Moore G.E., Boright A.P., Zlotorynski E., Kerem B., Kroisel P.M., Petek E., Oscier D.G., Mould S.J., Doehner H., Doehner K., Rommens J.M., Vincent J.B., Venter J.C., Li P.W., Mural R.J., Adams M.D., Tsui L.-C.
Science 300:767-772(2003) [PubMed: 12690205] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[5]"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
The MGC Project Team
Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2).
[6]"Evidence for regulation of the PTEN tumor suppressor by a membrane-localized multi-PDZ domain containing scaffold protein MAGI-2."
Wu X., Hepner K., Castelino-Prabhu S., Do D., Kaye M.B., Yuan X.-J., Wood J., Ross C., Sawyers C.L., Whang Y.E.
Proc. Natl. Acad. Sci. U.S.A. 97:4233-4238(2000) [PubMed: 10760291] [Abstract]
Cited for: FUNCTION, SUBCELLULAR LOCATION, INTERACTION WITH PTEN.
[7]"Phosphorylation of the PTEN tail acts as an inhibitory switch by preventing its recruitment into a protein complex."
Vazquez F., Grossman S.R., Takahashi Y., Rokas M.V., Nakamura N., Sellers W.R.
J. Biol. Chem. 276:48627-48630(2001) [PubMed: 11707428] [Abstract]
Cited for: INTERACTION WITH PTEN.
[8]"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: 16464232] [Abstract]
Cited for: INTERACTION WITH DDN.
[9]"Solution structure of the PDZ domains of human atrophin-1 interacting protein 1 (KIAA0705 protein)."
RIKEN structural genomics initiative (RSGI)
Submitted (FEB-2004) to the PDB data bank
Cited for: STRUCTURE BY NMR OF 412-1230.
+Additional computationally mapped references.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AF038563 mRNA. Translation: AAC05370.1.
AB014605 mRNA. Translation: BAA31680.2. Different initiation.
AC004808 Genomic DNA. Translation: AAC23438.1.
AC004945 Genomic DNA. Translation: AAC61488.1.
AC004990 Genomic DNA. Translation: AAC79151.1.
AC005246 Genomic DNA. Translation: AAC25530.1.
AC006043 Genomic DNA. Translation: AAD15413.2.
AC006324 Genomic DNA. Translation: AAF66080.1.
AC007237 Genomic DNA. Translation: AAP21886.1.
AC073200 Genomic DNA. Translation: AAP22360.1.
CH236949 Genomic DNA. Translation: EAL24194.1.
BC150277 mRNA. Translation: AAI50278.1.
IPIIPI00376306.
IPI00413880.
RefSeqNP_036433.2.
UniGeneHs.603842

3D structure databases

PDBe
RCSB PDB
PDBj
EntryMethodResolution (Å)ChainPositionsPDBsum
1UEPNMR-A774-863[»]
1UEQNMR-A412-522[»]
1UEWNMR-A915-1015[»]
1UJVNMR-A600-682[»]
1WFVNMR-A1141-1230[»]
SMRQ86UL8. Positions 134-192, 301-379, 347-395, 772-1011, 917-1228.
ModBaseSearch...

Protein-protein interaction databases

IntActQ86UL8. 6 interactions.
STRINGQ86UL8.

PTM databases

PhosphoSiteQ86UL8.

Proteomic databases

PRIDEQ86UL8.

Genome annotation databases

EnsemblENST00000354212; ENSP00000346151; ENSG00000187391; Homo sapiens. [Genome view]
GeneID9863.
KEGGhsa:9863.
UCSCuc003ugx.1. human.
uc003ugy.1. human.

Organism-specific databases

CTD9863.
GeneCardsGC07M077484.
H-InvDBHIX0006801.
HGNCHGNC:18957. MAGI2.
HPAHPA013650.
MIM606382. gene.
PharmGKBPA142671484.
HUGESearch...
GenAtlasSearch...

Phylogenomic databases

eggNOGprNOG16760.
HOVERGENQ86UL8.
InParanoidQ86UL8.
OMASDPSHQI.
OrthoDBEOG9X9B2S.
PhylomeDBQ86UL8.

Gene expression databases

ArrayExpressQ86UL8.
BgeeQ86UL8.
GenevestigatorQ86UL8.
GermOnlineENSG00000187391. Homo sapiens.

Family and domain databases

InterProIPR008144. Guanylate_kin.
IPR008145. Guanylate_kin/L-typ_Ca_channel.
IPR020590. Guanylate_kinase_CS.
IPR001478. PDZ/DHR/GLGF.
IPR001202. WW_Rsp5_WWP.
[Graphical view]
PfamPF00625. Guanylate_kin. 1 hit.
PF00595. PDZ. 6 hits.
PF00397. WW. 2 hits.
[Graphical view]
SMARTSM00072. GuKc. 1 hit.
SM00228. PDZ. 6 hits.
SM00456. WW. 2 hits.
[Graphical view]
PROSITEPS00856. 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]
ProtoNetSearch...

Other Resources

NextBio37182.
SOURCESearch...

Entry information

Entry nameMAGI2_HUMAN
AccessionPrimary (citable) accession number: Q86UL8
Secondary accession number(s): A4D1C1 expand/collapse secondary AC list , A7E2C3, O60434, O60510, Q86UI7, Q9NP44, Q9UDQ5, Q9UDU1
Entry history
Integrated into UniProtKB/Swiss-Prot: October 3, 2003
Last sequence update: February 7, 2006
Last modified: February 9, 2010
This is version 80 of the entry and version 3 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHPI (Human Proteome Initiative)
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Relevant documents

Human chromosome 7

Human chromosome 7: entries, gene names and cross-references to MIM

MIM cross-references

Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot

PDB cross-references

Index of Protein Data Bank (PDB) cross-references

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents