Q9JMH9 (MY18A_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 103.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Unconventional myosin-XVIIIa Alternative name(s): Molecule associated with JAK3 N-terminus Short name=MAJN Myosin containing a PDZ domain | ||||
| Gene names |
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| Organism | Mus musculus (Mouse) [Reference proteome] | ||||
| Taxonomic identifier | 10090 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 2050 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | May be involved in the maintenance of the stromal cell architecture required for cell to cell contact. Isoform 1 may be related to adherence and/or some other functions of mature macrophages. In concert with LURAP1 and CDC42BPA/CDC42BPB, is involved in modulating lamellar actomyosin retrograde flow that is crucial to cell protrusion and migration By similarity. |
| Subunit structure | Homodimer. Interacts with JAK3 and actin. Forms a tripartite complex with CDC42BPA/CDC42BPB and LURAP1 with the latter acting as an adapter connecting CDC42BPA/CDC42BPB and MYO18A By similarity. Ref.5 Ref.8 |
| Subcellular location | Isoform 1: Endoplasmic reticulum-Golgi intermediate compartment. Cytoplasm › cytoskeleton. Note: Colocalizes with actin. Ref.8 Isoform 2: Cytoplasm. Note: Lacks the PDZ domain. Diffusely localized in the cytoplasm. Ref.8 |
| Tissue specificity | Isoform 1 is expressed ubiquitously. Isoform 2 is specifically expressed in most hematopoietic cells. |
| Post-translational modification | Phosphorylated on tyrosine upon CSF1R activation. Isoform 6 is phosphorylated on Ser-340. Ref.7 |
| Sequence similarities | Contains 1 IQ domain. Contains 1 myosin head-like domain. Contains 1 PDZ (DHR) domain. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Cytoplasm Cytoskeleton |
| Coding sequence diversity | Alternative splicing |
| Domain | Coiled coil |
| Ligand | ATP-binding Nucleotide-binding |
| Molecular function | Motor protein Myosin |
| PTM | Phosphoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | actomyosin structure organization Inferred from electronic annotation. Source: Compara cell migrationInferred from electronic annotation. Source: Compara |
| Cellular_component | actomyosin Inferred from electronic annotation. Source: Compara cytoskeletonInferred from direct assay Ref.1. Source: MGI endoplasmic reticulum-Golgi intermediate compartmentInferred from electronic annotation. Source: UniProtKB-SubCell myosin complexInferred from electronic annotation. Source: UniProtKB-KW |
| Molecular_function | ATP binding Inferred from electronic annotation. Source: UniProtKB-KW motor activityInferred from electronic annotation. Source: InterPro |
| Complete GO annotation... | |
Alternative products
| This entry describes 7 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 3 (identifier: Q9JMH9-3) 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 1 (identifier: Q9JMH9-1) Also known as: Alpha; The sequence of this isoform differs from the canonical sequence as follows: 1948-1962: Missing. | ||||||
| Isoform 2 (identifier: Q9JMH9-2) Also known as: Beta; The sequence of this isoform differs from the canonical sequence as follows: 1-331: Missing. 332-333: AD → ML | ||||||
| Isoform 4 (identifier: Q9JMH9-4) The sequence of this isoform differs from the canonical sequence as follows: 1567-1603: Missing. 1948-1962: Missing. | ||||||
| Isoform 5 (identifier: Q9JMH9-5) The sequence of this isoform differs from the canonical sequence as follows: 1-331: Missing. 332-333: AD → ML 1948-1962: Missing. | ||||||
| Isoform 6 (identifier: Q9JMH9-6) The sequence of this isoform differs from the canonical sequence as follows: 333-333: D → DLDPEAASPAYSQ | ||||||
| Note: Phosphorylated at position 340. | ||||||
| Isoform 7 (identifier: Q9JMH9-7) The sequence of this isoform differs from the canonical sequence as follows: 1-331: Missing. 332-333: AD → MLLDPEAASPAYSQ 1948-1962: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 2050 | 2050 | Unconventional myosin-XVIIIa | PRO_0000123477 | |||||
Regions | |||||||||
| Domain | 220 – 311 | 92 | PDZ | ||||||
| Domain | 407 – 1169 | 763 | Myosin head-like | ||||||
| Domain | 1184 – 1213 | 30 | IQ | ||||||
| Nucleotide binding | 498 – 505 | 8 | ATP Potential | ||||||
| Coiled coil | 1242 – 1967 | 726 | Potential | ||||||
| Motif | 114 – 118 | 5 | Interaction with actin By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 72 | 1 | Phosphoserine Ref.11 | ||||||
| Modified residue | 74 | 1 | Phosphoserine Ref.11 | ||||||
| Modified residue | 83 | 1 | Phosphoserine Ref.11 Ref.12 | ||||||
| Modified residue | 102 | 1 | Phosphoserine Ref.11 | ||||||
| Modified residue | 140 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 164 | 1 | Phosphoserine Ref.11 | ||||||
| Modified residue | 1066 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1966 | 1 | Phosphoserine Ref.9 Ref.11 Ref.12 Ref.13 | ||||||
| Modified residue | 1970 | 1 | Phosphoserine Ref.9 Ref.12 Ref.13 | ||||||
| Modified residue | 1994 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1998 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 2003 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 2016 | 1 | Phosphoserine Ref.12 | ||||||
| Modified residue | 2032 | 1 | Phosphoserine Ref.11 | ||||||
| Modified residue | 2037 | 1 | Phosphoserine Ref.11 Ref.12 | ||||||
| Modified residue | 2039 | 1 | Phosphoserine Ref.11 Ref.12 | ||||||
| Modified residue | 2041 | 1 | Phosphothreonine By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 331 | 331 | Missing in isoform 2, isoform 5 and isoform 7. | VSP_007873 | |||||
| Alternative sequence | 332 – 333 | 2 | AD → ML in isoform 2 and isoform 5. | VSP_007874 | |||||
| Alternative sequence | 332 – 333 | 2 | AD → MLLDPEAASPAYSQ in isoform 7. | VSP_023059 | |||||
| Alternative sequence | 333 | 1 | D → DLDPEAASPAYSQ in isoform 6. | VSP_023060 | |||||
| Alternative sequence | 1567 – 1603 | 37 | Missing in isoform 4. | VSP_023061 | |||||
| Alternative sequence | 1948 – 1962 | 15 | Missing in isoform 1, isoform 4, isoform 5 and isoform 7. | VSP_023062 | |||||
Experimental info | |||||||||
| Sequence conflict | 399 | 1 | A → T in BAE28009. Ref.2 | ||||||
| Sequence conflict | 466 | 1 | R → Q in BAE42402. Ref.2 | ||||||
| Sequence conflict | 680 – 683 | 4 | Missing in BAE42402. Ref.2 | ||||||
| Sequence conflict | 680 | 1 | E → EPLEEQD in BAE28009. Ref.2 | ||||||
| Sequence conflict | 798 | 1 | G → D in BAE42402. Ref.2 | ||||||
| Sequence conflict | 1362 | 1 | D → N in BAE42402. Ref.2 | ||||||
| Sequence conflict | 1655 | 1 | K → R in BAE28009. Ref.2 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Isolation of a novel PDZ-containing myosin from hematopoietic supportive bone marrow stromal cell lines." Furusawa T., Ikawa S., Yanai N., Obinata M. Biochem. Biophys. Res. Commun. 270:67-75(2000) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). Strain: C57BL/6. Tissue: Spleen. |
| [2] | "The transcriptional landscape of the mammalian genome." Carninci P., Kasukawa T., Katayama S., Gough J., Frith M.C., Maeda N., Oyama R., Ravasi T., Lenhard B., Wells C., Kodzius R., Shimokawa K., Bajic V.B., Brenner S.E., Batalov S., Forrest A.R., Zavolan M., Davis M.J. Hayashizaki Y.Science 309:1559-1563(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 5), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1-873 (ISOFORM 2). Strain: C57BL/6J. Tissue: Bone and Brain. |
| [3] | "Lineage-specific biology revealed by a finished genome assembly of the mouse." Church D.M., Goodstadt L., Hillier L.W., Zody M.C., Goldstein S., She X., Bult C.J., Agarwala R., Cherry J.L., DiCuccio M., Hlavina W., Kapustin Y., Meric P., Maglott D., Birtle Z., Marques A.C., Graves T., Zhou S. Ponting C.P.PLoS Biol. 7:E1000112-E1000112(2009) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: C57BL/6J. |
| [4] | "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] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1032-2050 (ISOFORM 1). Strain: FVB/N. Tissue: Colon. |
| [5] | "A novel protein MAJN binds to Jak3 and inhibits apoptosis induced by IL-2 deprival." Ji H., Zhai Q., Zhu J., Yan M., Sun L., Liu X., Zheng Z. Biochem. Biophys. Res. Commun. 270:267-271(2000) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH JAK3. |
| [6] | "Genome structure and differential expression of two isoforms of a novel PDZ-containing myosin (MysPDZ) (Myo18A)." Mori K., Furusawa T., Okubo T., Inoue T., Ikawa S., Yanai N., Mori K.J., Obinata M. J. Biochem. 133:405-413(2003) [PubMed] [Europe PMC] [Abstract] Cited for: ALTERNATIVE SPLICING (ISOFORMS 1 AND 2), DIFFERENTIAL EXPRESSION. Tissue: Spleen. |
| [7] | "A novel 110 kDa form of myosin XVIIIA (MysPDZ) is tyrosine-phosphorylated after colony-stimulating factor-1 receptor signalling." Cross M., Csar X.F., Wilson N.J., Manes G., Addona T.A., Marks D.C., Whitty G.A., Ashman K., Hamilton J.A. Biochem. J. 380:243-253(2004) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION, MASS SPECTROMETRY. |
| [8] | "Subcellular localization and dynamics of MysPDZ (Myo18A) in live mammalian cells." Mori K., Matsuda K., Furusawa T., Kawata M., Inoue T., Obinata M. Biochem. Biophys. Res. Commun. 326:491-498(2005) [PubMed] [Europe PMC] [Abstract] Cited for: HOMODIMER, SUBCELLULAR LOCATION, INTERACTION WITH ACTIN. |
| [9] | "Protein phosphorylation and expression profiling by Yin-yang multidimensional liquid chromatography (Yin-yang MDLC) mass spectrometry." Dai J., Jin W.-H., Sheng Q.-H., Shieh C.-H., Wu J.-R., Zeng R. J. Proteome Res. 6:250-262(2007) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-1966 AND SER-1970, MASS SPECTROMETRY. Tissue: Liver. |
| [10] | "Qualitative and quantitative analyses of protein phosphorylation in naive and stimulated mouse synaptosomal preparations." Munton R.P., Tweedie-Cullen R., Livingstone-Zatchej M., Weinandy F., Waidelich M., Longo D., Gehrig P., Potthast F., Rutishauser D., Gerrits B., Panse C., Schlapbach R., Mansuy I.M. Mol. Cell. Proteomics 6:283-293(2007) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-340 (ISOFORM 6), MASS SPECTROMETRY. Tissue: Brain cortex. |
| [11] | "Large-scale phosphorylation analysis of mouse liver." Villen J., Beausoleil S.A., Gerber S.A., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 104:1488-1493(2007) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-72; SER-74; SER-83; SER-102; SER-164; SER-1966; SER-2032; SER-2037 AND SER-2039, MASS SPECTROMETRY. Tissue: Liver. |
| [12] | "Solid tumor proteome and phosphoproteome analysis by high resolution mass spectrometry." Zanivan S., Gnad F., Wickstroem S.A., Geiger T., Macek B., Cox J., Faessler R., Mann M. J. Proteome Res. 7:5314-5326(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-83; SER-1966; SER-1970; SER-2016; SER-2037 AND SER-2039, MASS SPECTROMETRY. Tissue: Melanoma. |
| [13] | "Large scale localization of protein phosphorylation by use of electron capture dissociation mass spectrometry." Sweet S.M., Bailey C.M., Cunningham D.L., Heath J.K., Cooper H.J. Mol. Cell. Proteomics 8:904-912(2009) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-1966 AND SER-1970, MASS SPECTROMETRY. Tissue: Embryonic fibroblast. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AB026497 mRNA. Translation: BAA93660.1. AK137574 mRNA. Translation: BAE23413.1. AK147584 mRNA. Translation: BAE28009.1. AK171342 mRNA. Translation: BAE42402.1. AL591065 Genomic DNA. Translation: CAI24424.1. AL591065 Genomic DNA. Translation: CAI24425.1. AL591065 Genomic DNA. Translation: CAI24426.1. AL591065 Genomic DNA. Translation: CAI24427.1. BC046638 mRNA. Translation: AAH46638.1. |
| IPI | IPI00407425. IPI00619995. IPI00622556. IPI00648918. IPI00649326. IPI00828545. IPI00828766. |
| RefSeq | NP_035716.1. NM_011586.2. |
| UniGene | Mm.341248. Mm.476162. |
3D structure databases | |
| ProteinModelPortal | Q9JMH9. |
| SMR | Q9JMH9. Positions 342-1243. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q9JMH9. 3 interactions. |
PTM databases | |
| PhosphoSite | Q9JMH9. |
Proteomic databases | |
| PaxDb | Q9JMH9. |
| PRIDE | Q9JMH9. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000092884; ENSMUSP00000090560; ENSMUSG00000000631. ENSMUST00000092887; ENSMUSP00000090563; ENSMUSG00000000631. ENSMUST00000102488; ENSMUSP00000099546; ENSMUSG00000000631. ENSMUST00000108375; ENSMUSP00000104012; ENSMUSG00000000631. ENSMUST00000108376; ENSMUSP00000104013; ENSMUSG00000000631. ENSMUST00000130305; ENSMUSP00000119574; ENSMUSG00000000631. ENSMUST00000130627; ENSMUSP00000119839; ENSMUSG00000000631. ENSMUST00000164334; ENSMUSP00000131771; ENSMUSG00000000631. ENSMUST00000172303; ENSMUSP00000129098; ENSMUSG00000000631. |
| GeneID | 360013. |
| KEGG | mmu:360013. |
| UCSC | uc007khg.1. mouse. uc007khh.1. mouse. uc007khi.1. mouse. |
Organism-specific databases | |
| CTD | 399687. |
| MGI | MGI:2667185. Myo18a. |
Phylogenomic databases | |
| eggNOG | COG5022. |
| GeneTree | ENSGT00650000093350. |
| HOVERGEN | HBG052543. |
| KO | K10362. |
Gene expression databases | |
| ArrayExpress | Q9JMH9. |
| Bgee | Q9JMH9. |
| CleanEx | MM_MYO18A. |
| Genevestigator | Q9JMH9. |
| GermOnline | ENSMUSG00000000631. Mus musculus. |
Family and domain databases | |
| InterPro | IPR000048. IQ_motif_EF-hand-BS. IPR001609. Myosin_head_motor_dom. IPR002928. Myosin_tail. IPR001478. PDZ. [Graphical view] |
| Pfam | PF00063. Myosin_head. 2 hits. PF01576. Myosin_tail_1. 1 hit. PF00595. PDZ. 1 hit. [Graphical view] |
| PRINTS | PR00193. MYOSINHEAVY. |
| SMART | SM00015. IQ. 1 hit. SM00242. MYSc. 1 hit. SM00228. PDZ. 1 hit. [Graphical view] |
| SUPFAM | SSF50156. PDZ. 1 hit. |
| PROSITE | PS50096. IQ. 1 hit. PS50106. PDZ. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | MYO18A. mouse. |
| NextBio | 400702. |
| SOURCE | Search... |
Entry information
| Entry name | MY18A_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q9JMH9 Secondary accession number(s): Q3TBB2 Q811D7 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
