P43404 (ZAP70_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 123.
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: Tyrosine-protein kinase ZAP-70 EC=2.7.10.2 Alternative name(s): 70 kDa zeta-chain associated protein Syk-related tyrosine kinase | ||||
| 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 | 618 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Tyrosine kinase that plays an essential role in regulation of the adaptive immune response. Regulates motility, adhesion and cytokine expression of mature T-cells, as well as thymocyte development. Contributes also to the development and activation of primary B-lymphocytes. When antigen presenting cells (APC) activate T-cell receptor (TCR), a serie of phosphorylations lead to the recruitment of ZAP70 to the doubly phosphorylated TCR component CD3Z through ITAM motif at the plasma membrane. This recruitment serves to localization to the stimulated TCR and to relieve its autoinhibited conformation. Release of ZAP70 active conformation is further stabilized by phosphorylation mediated by LCK. Subsequently, ZAP70 phosphorylates at least 2 essential adapter proteins: LAT and LCP2. In turn, a large number of signaling molecules are recruited and ultimately lead to lymphokine production, T-cell proliferation and differentiation. Furthermore, ZAP70 controls cytoskeleton modifications, adhesion and mobility of T-lymphocytes, thus ensuring correct delivery of effectors to the APC. ZAP70 is also required for TCR-CD3Z internalization and degradation through interaction with the E3 ubiquitin-protein ligase CBL and adapter proteins SLA and SLA2. Thus, ZAP70 regulates both T-cell activation switch on and switch off by modulating TCR expression at the T-cell surface. During thymocyte development, ZAP70 promotes survival and cell-cycle progression of developing thymocytes before positive selection (when cells are still CD4/CD8 double negative). Additionally, ZAP70-dependent signaling pathway may also contribute to primary B-cells formation and activation through B-cell receptor (BCR). Ref.3 Ref.8 Ref.13 Ref.16 |
| Catalytic activity | ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate. |
| Enzyme regulation | Activated by phosphorylation at Tyr-492 in the activation loop. |
| Subunit structure | Interacts with CD3Z; this interaction docks ZAP70 at the stimulated TCR. Interacts with NFAM1. Interacts with adapter proteins SLA and SLA2; these interactions negatively regulates T-cell receptor signaling. Interacts with CBLB. Interacts with CBL; this interaction promotes ubiquitination, internalization and subsequent degradation of CD3Z. Identified in a complex with CBL and UBE2L3. Interacts with DEF6. Interacts (via SH2 domains) with RHOH; this interaction regulates ZAP70 subcellular localization. Interacts with FCRL3. Interacts with VAV1 By similarity. Ref.9 Ref.10 Ref.11 Ref.12 Ref.14 Ref.15 |
| Subcellular location | Cytoplasm. Cell membrane; Peripheral membrane protein. Note: In quiescent T-lymphocytes, ZAP70 is cytoplasmic. Upon TCR activation, it is recruited at the plasma membrane by interacting with CD3Z. Co-localizes together with RHOH in the immunological synapse. RHOH is required for its proper localization to the cell membrane and cytoskeleton fractions in the thymocytes. Ref.3 Ref.15 |
| Tissue specificity | Isoform 1 and isoform 2 are expressed in thymus, spleen and lymph nodes. Ref.3 |
| Developmental stage | Isoform 2 is expressed in developing thymocytes from the CD44+CD25- stage up to mature T-cells. Isoform 1 is not expressed in thymocytes at the CD44+CD25- or CD44+CD25+ stages. Ref.3 |
| Domain | Composed of 2 N-terminal SH2 domains and a C-terminal kinase domain. The tandem SH2 domains bind to the doubly phosphorylated tyrosine-based activation motif (ITAM) of CD247/CD3Z and the non-canonical phosphorylated tyrosine-based activation motif (TAM) of RHOH By similarity. The interdomain B located between the second SH2 and the kinase domain has been implicated in binding to other signaling molecules including CBL or VAV1. Thus, ZAP70 can also function as a scaffold by recruiting additional factors to the stimulated TCR complex By similarity. Ref.15 |
| Post-translational modification | Phosphorylated on tyrosine residues upon T-cell antigen receptor (TCR) stimulation. Phosphorylation of Tyr-314 and Tyr-314 are essential for ZAP70 positive function on T-lymphocyte activation whereas Tyr-290 has a negative regulatory role. Within the C-terminal kinase domain, Tyr-491 and Tyr-492 are phosphorylated after TCR induction, Tyr-491 playing a negative regulatory role and Tyr-492 a positive. Tyr-492 is dephosphorylated by PTN22. |
| Disruption phenotype | Mice lack both CD4 and CD8 positive mature T-lymphocytes. Displays a complete block in B-Cell development at the pro-B cell stage in the absence of both SYK and ZAP70. Ref.8 Ref.13 |
| Sequence similarities | Belongs to the protein kinase superfamily. Tyr protein kinase family. SYK/ZAP-70 subfamily. Contains 1 protein kinase domain. Contains 2 SH2 domains. |
Ontologies
Alternative products
| This entry describes 3 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: P43404-1) 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: P43404-2) Also known as: TZK; The sequence of this isoform differs from the canonical sequence as follows: 1-306: Missing. | ||||||
| Isoform 3 (identifier: P43404-3) Also known as: TZK-2; The sequence of this isoform differs from the canonical sequence as follows: 1-309: Missing. 310-360: DTSVYESPYS...VRQGVYRMRK → MAYGRVSGVS...MLSVASHLGR | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 618 | 618 | Tyrosine-protein kinase ZAP-70 | PRO_0000088169 | |||||
Regions | |||||||||
| Domain | 10 – 102 | 93 | SH2 1 | ||||||
| Domain | 163 – 254 | 92 | SH2 2 | ||||||
| Domain | 337 – 597 | 261 | Protein kinase | ||||||
| Nucleotide binding | 343 – 351 | 9 | ATP By similarity | ||||||
| Region | 103 – 162 | 60 | Interdomain A | ||||||
| Region | 255 – 336 | 82 | Interdomain B | ||||||
Sites | |||||||||
| Active site | 460 | 1 | Proton acceptor By similarity | ||||||
| Binding site | 368 | 1 | ATP By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 248 | 1 | Phosphotyrosine By similarity | ||||||
| Modified residue | 287 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 290 | 1 | Phosphotyrosine By similarity | ||||||
| Modified residue | 314 | 1 | Phosphotyrosine; by LCK By similarity | ||||||
| Modified residue | 318 | 1 | Phosphotyrosine By similarity | ||||||
| Modified residue | 491 | 1 | Phosphotyrosine; by autocatalysis By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 309 | 309 | Missing in isoform 3. | VSP_031160 | |||||
| Alternative sequence | 1 – 306 | 306 | Missing in isoform 2. | VSP_031159 | |||||
| Alternative sequence | 310 – 360 | 51 | DTSVY…YRMRK → MAYGRVSGVSELSRVLYVPF PPPPFLSNPGVHDTRMYTQH AMLSVASHLGR in isoform 3. | VSP_031161 | |||||
| Natural variant | 464 | 1 | R → C in ST; causes an absence of mature T-cells due to thymocyte development being arrested at the CD4+CD8+ stage. Ref.2 | ||||||
Experimental info | |||||||||
| Sequence conflict | 124 | 1 | R → C in AAA19250. Ref.1 | ||||||
| Sequence conflict | 526 – 529 | 4 | VTMW → GHHV in BAC67015. Ref.4 | ||||||
| Sequence conflict | 546 | 1 | E → Q in AAA19250. Ref.1 | ||||||
| Sequence conflict | 599 | 1 | L → P in AAA19250. Ref.1 | ||||||
| Sequence conflict | 599 | 1 | L → P in AAB36538. Ref.2 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Interactions of p59fyn and ZAP-70 with T-cell receptor activation motifs: defining the nature of a signalling motif." Gauen L.K.T., Zhu Y., Letourner F., Hu Q., Bolen J.B., Matis L.A., Klausner R.D., Shaw A.S. Mol. Cell. Biol. 14:3729-3741(1994) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). Tissue: Thymus. |
| [2] | "A spontaneously arising mutation in the DLAARN motif of murine ZAP-70 abrogates kinase activity and arrests thymocyte development." Wiest D.L., Ashe J.M., Howcroft T.K., Lee H.-M., Kemper D.M., Negishi I., Singer D.S., Singer A., Abe R. Immunity 6:663-671(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), VARIANT ST CYS-464. Strain: C57BL/6. Tissue: Thymocyte. |
| [3] | "Identification of a novel isoform of ZAP-70, truncated ZAP kinase." Kuroyama H., Ikeda T., Kasai M., Yamasaki S., Tatsumi M., Utsuyama M., Saito T., Hirokawa K. Biochem. Biophys. Res. Commun. 315:935-941(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), FUNCTION, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, DEVELOPMENTAL STAGE. Strain: C57BL/6. Tissue: Thymus. |
| [4] | "Mouse TZK-2." Ikeda T., Kuroyama H. Submitted (APR-2002) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 3). |
| [5] | "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 1). Strain: C57BL/6J. Tissue: Thymus. |
| [6] | "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. |
| [7] | "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] (ISOFORM 1). Strain: FVB/N. Tissue: Salivary gland. |
| [8] | "Essential role for ZAP-70 in both positive and negative selection of thymocytes." Negishi I., Motoyama N., Nakayama K., Nakayama K., Senju S., Hatakeyama S., Zhang Q., Chan A.C., Loh D.Y. Nature 376:435-438(1995) [PubMed] [Europe PMC] [Abstract] Cited for: DISRUPTION PHENOTYPE, FUNCTION. |
| [9] | "Src-like adaptor protein (SLAP) is a negative regulator of T cell receptor signaling." Sosinowski T., Pandey A., Dixit V.M., Weiss A. J. Exp. Med. 191:463-474(2000) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH SLA. |
| [10] | "Negative regulation of lymphocyte activation and autoimmunity by the molecular adaptor Cbl-b." Bachmaier K., Krawczyk C., Kozieradzki I., Kong Y.-Y., Sasaki T., Oliveira-dos-Santos A., Mariathasan S., Bouchard D., Wakeham A., Itie A., Le J., Ohashi P.S., Sarosi I., Nishina H., Lipkowitz S., Penninger J.M. Nature 403:211-216(2000) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH CBLB. |
| [11] | "A novel Src homology 2 domain-containing molecule, Src-like adapter protein-2 (SLAP-2), which negatively regulates T cell receptor signaling." Pandey A., Ibarrola N., Kratchmarova I., Fernandez M.M., Constantinescu S.N., Ohara O., Sawasdikosol S., Lodish H.F., Mann M. J. Biol. Chem. 277:19131-19138(2002) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH SLA2. |
| [12] | "SWAP-70-like adapter of T cells, an adapter protein that regulates early TCR-initiated signaling in Th2 lineage cells." Tanaka Y., Bi K., Kitamura R., Hong S., Altman Y., Matsumoto A., Tabata H., Lebedeva S., Bushway P.J., Altman A. Immunity 18:403-414(2003) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH DEF6. |
| [13] | "Unexpected requirement for ZAP-70 in pre-B cell development and allelic exclusion." Schweighoffer E., Vanes L., Mathiot A., Nakamura T., Tybulewicz V.L. Immunity 18:523-533(2003) [PubMed] [Europe PMC] [Abstract] Cited for: DISRUPTION PHENOTYPE, FUNCTION. |
| [14] | "NFAM1, an immunoreceptor tyrosine-based activation motif-bearing molecule that regulates B cell development and signaling." Ohtsuka M., Arase H., Takeuchi A., Yamasaki S., Shiina R., Suenaga T., Sakurai D., Yokosuka T., Arase N., Iwashima M., Kitamura T., Moriya H., Saito T. Proc. Natl. Acad. Sci. U.S.A. 101:8126-8131(2004) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH NFAM1. |
| [15] | "RhoH GTPase recruits and activates Zap70 required for T cell receptor signaling and thymocyte development." Gu Y., Chae H.-D., Siefring J.E., Jasti A.C., Hildeman D.A., Williams D.A. Nat. Immunol. 7:1182-1190(2006) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION, INTERACTION WITH RHOH, DOMAIN. |
| [16] | "Distinct roles for Syk and ZAP-70 during early thymocyte development." Palacios E.H., Weiss A. J. Exp. Med. 204:1703-1715(2007) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION IN THYMOCYTE DEVELOPMENT. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | U04379 mRNA. Translation: AAA19250.1. U77667 mRNA. Translation: AAB36538.1. AB083210 mRNA. Translation: BAC43746.1. AB084383 mRNA. Translation: BAC67015.1. AK039883 mRNA. Translation: BAC30471.1. AC084389 mRNA. No translation available. BC029727 mRNA. Translation: AAH29727.1. |
| IPI | IPI00331216. IPI00403592. IPI00885341. |
| PIR | I48914. |
| RefSeq | NP_033565.2. NM_009539.2. |
| UniGene | Mm.8038. |
3D structure databases | |
| ProteinModelPortal | P43404. |
| SMR | P43404. Positions 1-605. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | P43404. 1 interaction. |
| STRING | 10090.ENSMUSP00000027291. |
PTM databases | |
| PhosphoSite | P43404. |
Proteomic databases | |
| PaxDb | P43404. |
| PRIDE | P43404. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000027291; ENSMUSP00000027291; ENSMUSG00000026117. |
| GeneID | 22637. |
| KEGG | mmu:22637. |
| UCSC | uc007aqz.1. mouse. uc007ara.1. mouse. uc007arb.1. mouse. |
Organism-specific databases | |
| CTD | 7535. |
| MGI | MGI:99613. Zap70. |
Phylogenomic databases | |
| eggNOG | COG0515. |
| GeneTree | ENSGT00620000087791. |
| HOGENOM | HOG000113264. |
| HOVERGEN | HBG001540. |
| InParanoid | P43404. |
| KO | K07360. |
| OMA | PAHPSTF. |
| OrthoDB | EOG4NZTSX. |
Enzyme and pathway databases | |
| BRENDA | 2.7.10.2. 3474. |
Gene expression databases | |
| Bgee | P43404. |
| CleanEx | MM_ZAP70. |
| Genevestigator | P43404. |
| GermOnline | ENSMUSG00000026117. Mus musculus. |
Family and domain databases | |
| Gene3D | 1.10.930.10. 1 hit. 3.30.505.10. 2 hits. |
| InterPro | IPR011009. Kinase-like_dom. IPR023420. Kinase_SYK/ZAP-70_inter-SH2. IPR000719. Prot_kinase_cat_dom. IPR017441. Protein_kinase_ATP_BS. IPR001245. Ser-Thr/Tyr_kinase_cat_dom. IPR000980. SH2. IPR008266. Tyr_kinase_AS. IPR020635. Tyr_kinase_cat_dom. IPR012234. Tyr_kinase_non-rcpt_SYK/ZAP70. [Graphical view] |
| Pfam | PF07714. Pkinase_Tyr. 1 hit. PF00017. SH2. 2 hits. [Graphical view] |
| PIRSF | PIRSF000604. TyrPK_SYK. 1 hit. |
| PRINTS | PR00401. SH2DOMAIN. PR00109. TYRKINASE. |
| SMART | SM00252. SH2. 2 hits. SM00219. TyrKc. 1 hit. [Graphical view] |
| SUPFAM | SSF56112. Kinase_like. 1 hit. |
| PROSITE | PS00107. PROTEIN_KINASE_ATP. 1 hit. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00109. PROTEIN_KINASE_TYR. 1 hit. PS50001. SH2. 2 hits. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 303021. |
| SOURCE | Search... |
Entry information
| Entry name | ZAP70_MOUSE | ||||||||
| Accession | Primary (citable) accession number: P43404 Secondary accession number(s): P97455, Q80VV2, Q8CHJ3 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| Human and mouse protein kinases Human and mouse protein kinases: classification and index |
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
