P15209 (NTRK2_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
January 25, 2012.
Version 141.
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: BDNF/NT-3 growth factors receptor EC=2.7.10.1 Alternative name(s): GP145-TrkB/GP95-TrkB Short name=Trk-B Neurotrophic tyrosine kinase receptor type 2 TrkB tyrosine kinase | ||||
| Gene names |
| ||||
| Organism | Mus musculus (Mouse) | ||||
| 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 | 821 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Receptor tyrosine kinase involved in the development and the maturation of the central and the peripheral nervous systems through regulation of neuron survival, proliferation, migration, differentiation, and synapse formation and plasticity. Receptor for BDNF/brain-derived neurotrophic factor and NTF4/neurotrophin-4. Alternatively can also bind NTF3/neurotrophin-3 which is less efficient in activating the receptor but regulates neuron survival through NTRK2. Upon ligand-binding, undergoes homodimerization, autophosphorylation and activation. Recruits, phosphorylates and/or activates several downstream effectors including SHC1, FRS2, SH2B1, SH2B2 and PLCG1 that regulate distinct overlapping signaling cascades. Through SHC1, FRS2, SH2B1, SH2B2 activates the GRB2-Ras-MAPK cascade that regulates for instance neuronal differentiation including neurite outgrowth. Through the same effectors controls the Ras-PI3 kinase-AKT1 signaling cascade that mainly regulates growth and survival. Through PLCG1 and the downstream protein kinase C-regulated pathways controls synaptic plasticity. Thereby, plays a role in learning and memory by regulating both short term synaptic function and long-term potentiation. PLCG1 also leads to NF-Kappa-B activation and the transcription of genes involved in cell survival. Hence, it is able to suppress anoikis, the apoptosis resulting from loss of cell-matrix interactions. Isoform GP95-TRKB may also play a role in neutrophin-dependent calcium signaling in glial cells and mediate communication between neurons and glia. Ref.6 Ref.7 Ref.8 Ref.9 Ref.10 Ref.12 Ref.13 Ref.14 Ref.17 Ref.19 |
| Catalytic activity | ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate. |
| Enzyme regulation | The formation of active receptors dimers able to fully transduce the ligand-mediated signal, may be negatively regulated by the formation of inactive heterodimers with the non-catalytic isoforms By similarity. The neuronal activity and the influx of calcium positively regulate the kinase activity and the internalization of the receptor which are both important for active signaling. Regulated by NGFR that may control the internalization of the receptor. NGFR may also stimulate the activation by BDNF compared to NTF3 and NTF4. SH2D1A inhibits the autophosphorylation of the receptor, and alters the recruitment and activation of downstream effectors and signaling cascades. Ref.11 Ref.15 Ref.16 |
| Subunit structure | Exists in a dynamic equilibrium between monomeric (low affinity) and dimeric (high affinity) structures. Interacts (phosphorylated upon activation by BDNF) with SHC1; mediates SHC1 phosphorylation and activation. Interacts (phosphorylated upon activation by BDNF) with PLCG1 and/or PLCG2; mediates PLCG1 phosphorylation and activation. Interacts with SH2B1 and SH2B2. Interacts with NGFR; may regulate the ligand specificity of the receptor By similarity. Interacts (phosphorylated upon ligand-binding) with SH2D1A; regulates NTRK2. Interacts with SQSTM1 and KIDINS220 By similarity. Interacts (phosphorylated upon ligand-binding) with FRS2; activates the MAPK signaling pathway By similarity. Ref.10 Ref.16 Ref.17 |
| Subcellular location | Cell membrane; Single-pass type I membrane protein. Endosome membrane; Single-pass type I membrane protein. Note: Internalized to endosomes upon ligand-binding. Ref.11 |
| Tissue specificity | Widely expressed in the central and peripheral nervous system. The different forms are differentially expressed in various cell types. Isoform GP95-TRKB is specifically expressed in glial cells. |
| Post-translational modification | Phosphorylated. Undergoes ligand-mediated autophosphorylation that is required for interaction with SHC1 and PLCG1 and other downstream effectors. Some isoforms are not phosphorylated By similarity. Ref.17 Ref.18 Ubiquitinated. Undergoes polyubiquitination upon activation; regulated by NGFR. Ubiquitination regulates the internalization of the receptor. Ref.15 |
| Disruption phenotype | Mice lacking isoform GP145-TRKB, the catalytic isoform, do not display feeding activity and die at P1. This is associated neuronal deficiencies in the central and the peripheral nervous systems. Ref.7 |
| Sequence similarities | Belongs to the protein kinase superfamily. Tyr protein kinase family. Insulin receptor subfamily. Contains 2 Ig-like C2-type (immunoglobulin-like) domains. Contains 2 LRR (leucine-rich) repeats. Contains 1 LRRCT domain. Contains 1 LRRNT domain. Contains 1 protein kinase domain. |
Ontologies
Alternative products
| This entry describes 4 isoforms produced by alternative splicing. [Align] [Select] Note: Additional isoforms seem to exist. | ||||||
| Isoform GP145-TRKB (identifier: P15209-1) Also known as: L3; TrkBTK+; TRKB-FL; 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 GP95-TRKB (identifier: P15209-2) Also known as: TRKB-T1; TrkBTK-; The sequence of this isoform differs from the canonical sequence as follows: 466-476: PASVISNDDDS → FVLFHKIPLDG 477-821: Missing. | ||||||
| Note: Non-catalytic isoform. | ||||||
| Isoform L1 (identifier: P15209-3) The sequence of this isoform differs from the canonical sequence as follows: 72-120: Missing. | ||||||
| Isoform L10 (identifier: P15209-4) The sequence of this isoform differs from the canonical sequence as follows: 71-71: I → M 72-143: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||
Molecule processing | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 31 | 31 | |||||||||
| Chain | 32 – 821 | 790 | BDNF/NT-3 growth factors receptor | PRO_0000016728 | |||||||
Regions | |||||||||||
| Topological domain | 32 – 429 | 398 | Extracellular Potential | ||||||||
| Transmembrane | 430 – 453 | 24 | Helical; Potential | ||||||||
| Topological domain | 454 – 821 | 368 | Cytoplasmic Potential | ||||||||
| Domain | 32 – 61 | 30 | LRRNT | ||||||||
| Repeat | 92 – 113 | 22 | LRR 1 | ||||||||
| Repeat | 116 – 137 | 22 | LRR 2 | ||||||||
| Domain | 148 – 196 | 49 | LRRCT | ||||||||
| Domain | 197 – 282 | 86 | Ig-like C2-type 1 | ||||||||
| Domain | 301 – 365 | 65 | Ig-like C2-type 2 | ||||||||
| Domain | 537 – 806 | 270 | Protein kinase | ||||||||
| Nucleotide binding | 543 – 551 | 9 | ATP By similarity | ||||||||
Sites | |||||||||||
| Active site | 675 | 1 | Proton acceptor By similarity | ||||||||
| Binding site | 571 | 1 | ATP By similarity | ||||||||
| Site | 515 | 1 | Interaction with SHC1 | ||||||||
| Site | 705 | 1 | Interaction with SH2D1A By similarity | ||||||||
| Site | 816 | 1 | Interaction with PLCG1 | ||||||||
Amino acid modifications | |||||||||||
| Modified residue | 515 | 1 | Phosphotyrosine; by autocatalysis By similarity | ||||||||
| Modified residue | 701 | 1 | Phosphotyrosine; by autocatalysis By similarity | ||||||||
| Modified residue | 705 | 1 | Phosphotyrosine; by autocatalysis By similarity | ||||||||
| Modified residue | 706 | 1 | Phosphotyrosine; by autocatalysis By similarity | ||||||||
| Modified residue | 816 | 1 | Phosphotyrosine; by autocatalysis By similarity | ||||||||
| Glycosylation | 67 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Glycosylation | 95 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Glycosylation | 121 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Glycosylation | 178 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Glycosylation | 205 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Glycosylation | 241 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Glycosylation | 254 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Glycosylation | 280 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Glycosylation | 325 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 338 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Glycosylation | 411 | 1 | N-linked (GlcNAc...) By similarity | ||||||||
| Disulfide bond | 32 ↔ 38 | By similarity | |||||||||
| Disulfide bond | 36 ↔ 45 | By similarity | |||||||||
| Disulfide bond | 152 ↔ 176 | By similarity | |||||||||
| Disulfide bond | 154 ↔ 194 | By similarity | |||||||||
| Disulfide bond | 218 ↔ 266 | By similarity | |||||||||
| Disulfide bond | 302 ↔ 345 | By similarity | |||||||||
Natural variations | |||||||||||
| Alternative sequence | 71 | 1 | I → M in isoform L10. | VSP_002905 | |||||||
| Alternative sequence | 72 – 143 | 72 | Missing in isoform L10. | VSP_002906 | |||||||
| Alternative sequence | 72 – 120 | 49 | Missing in isoform L1. | VSP_002907 | |||||||
| Alternative sequence | 466 – 476 | 11 | PASVISNDDDS → FVLFHKIPLDG in isoform GP95-TRKB. | VSP_002908 | |||||||
| Alternative sequence | 477 – 821 | 345 | Missing in isoform GP95-TRKB. | VSP_002909 | |||||||
Experimental info | |||||||||||
| Mutagenesis | 515 | 1 | Y → F: Loss of interaction with SHC1. Ref.10 | ||||||||
| Mutagenesis | 816 | 1 | Y → F: Loss of interaction with PLCG1. Ref.10 | ||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "trkB, a novel tyrosine protein kinase receptor expressed during mouse neural development." Klein R., Parada L.F., Coulier F., Barbacid M. EMBO J. 8:3701-3709(1989) [PubMed: 2555172] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM GP145-TRKB). Tissue: Brain. |
| [2] | "The trkB tyrosine protein kinase gene codes for a second neurogenic receptor that lacks the catalytic kinase domain." Klein R., Conway D., Parada L.F., Barbacid M. Cell 61:647-656(1990) [PubMed: 2160854] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS GP145-TRKB AND GP95-TRKB). Tissue: Brain. |
| [3] | "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: 16141072] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS GP145-TRKB AND GP95-TRKB). Strain: C57BL/6J and NOD. Tissue: Thymus. |
| [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: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM GP95-TRKB). Strain: C57BL/6. Tissue: Brain. |
| [5] | "TrkB variants with deletions in the leucine-rich motifs of the extracellular domain." Ninkina N., Grashchuck M., Buchman V.L., Davies A.M. J. Biol. Chem. 272:13019-13025(1997) [PubMed: 9148911] [Abstract] Cited for: PARTIAL NUCLEOTIDE SEQUENCE (ISOFORMS L1 AND L10). Tissue: Trigeminal ganglion. |
| [6] | "The neurotrophic factors brain-derived neurotrophic factor and neurotrophin-3 are ligands for the trkB tyrosine kinase receptor." Soppet D., Escandon E., Maragos J., Middlemas D.S., Reid S.W., Blair J., Burton L.E., Stanton B.R., Kaplan D.R., Hunter T., Nicolics K., Parada L.F. Cell 65:895-903(1991) [PubMed: 1645620] [Abstract] Cited for: FUNCTION IN BDNF AND NTF3 SIGNALING. |
| [7] | "Targeted disruption of the trkB neurotrophin receptor gene results in nervous system lesions and neonatal death." Klein R., Smeyne R.J., Wurst W., Long L.K., Auerbach B.A., Joyner A.L., Barbacid M. Cell 75:113-122(1993) [PubMed: 8402890] [Abstract] Cited for: DISRUPTION PHENOTYPE, FUNCTION. |
| [8] | "Characterization of neurotrophin and Trk receptor functions in developing sensory ganglia: direct NT-3 activation of TrkB neurons in vivo." Farinas I., Wilkinson G.A., Backus C., Reichardt L.F., Patapoutian A. Neuron 21:325-334(1998) [PubMed: 9728914] [Abstract] Cited for: FUNCTION IN NTF3-MEDIATED NEURON SURVIVAL. |
| [9] | "Essential role for TrkB receptors in hippocampus-mediated learning." Minichiello L., Korte M., Wolfer D., Kuehn R., Unsicker K., Cestari V., Rossi-Arnaud C., Lipp H.P., Bonhoeffer T., Klein R. Neuron 24:401-414(1999) [PubMed: 10571233] [Abstract] Cited for: FUNCTION IN LONG-TERM POTENTIATION AND LEARNING. |
| [10] | "Mechanism of TrkB-mediated hippocampal long-term potentiation." Minichiello L., Calella A.M., Medina D.L., Bonhoeffer T., Klein R., Korte M. Neuron 36:121-137(2002) [PubMed: 12367511] [Abstract] Cited for: FUNCTION IN LONG-TERM POTENTIATION AND LEARNING, INTERACTION WITH SHC1 AND PLCG1, MUTAGENESIS OF TYR-515 AND TYR-816. |
| [11] | "Regulation of TrkB receptor tyrosine kinase and its internalization by neuronal activity and Ca2+ influx." Du J., Feng L., Zaitsev E., Je H.S., Liu X.W., Lu B. J. Cell Biol. 163:385-395(2003) [PubMed: 14581459] [Abstract] Cited for: SUBCELLULAR LOCATION, ENZYME REGULATION. |
| [12] | "Truncated TrkB-T1 mediates neurotrophin-evoked calcium signalling in glia cells." Rose C.R., Blum R., Pichler B., Lepier A., Kafitz K.W., Konnerth A. Nature 426:74-78(2003) [PubMed: 14603320] [Abstract] Cited for: FUNCTION IN CALCIUM SIGNALING (ISOFORM GP95-TRKB). |
| [13] | "TrkB regulates neocortex formation through the Shc/PLCgamma-mediated control of neuronal migration." Medina D.L., Sciarretta C., Calella A.M., Von Bohlen Und Halbach O., Unsicker K., Minichiello L. EMBO J. 23:3803-3814(2004) [PubMed: 15372074] [Abstract] Cited for: FUNCTION IN NEURONAL MIGRATION AND DIFFERENTIATION. |
| [14] | "Suppression of anoikis and induction of metastasis by the neurotrophic receptor TrkB." Douma S., Van Laar T., Zevenhoven J., Meuwissen R., Van Garderen E., Peeper D.S. Nature 430:1034-1039(2004) [PubMed: 15329723] [Abstract] Cited for: FUNCTION AS A SUPPRESSOR OF ANOIKIS. |
| [15] | "p75 neurotrophin receptor reduces ligand-induced Trk receptor ubiquitination and delays Trk receptor internalization and degradation." Makkerh J.P., Ceni C., Auld D.S., Vaillancourt F., Dorval G., Barker P.A. EMBO Rep. 6:936-941(2005) [PubMed: 16113645] [Abstract] Cited for: UBIQUITINATION, ENZYME REGULATION. |
| [16] | "SLAM-associated protein as a potential negative regulator in Trk signaling." Lo K.Y., Chin W.H., Ng Y.P., Cheng A.W., Cheung Z.H., Ip N.Y. J. Biol. Chem. 280:41744-41752(2005) [PubMed: 16223723] [Abstract] Cited for: ENZYME REGULATION, INTERACTION WITH SH2D1A. |
| [17] | "TrkB binds and tyrosine-phosphorylates Tiam1, leading to activation of Rac1 and induction of changes in cellular morphology." Miyamoto Y., Yamauchi J., Tanoue A., Wu C., Mobley W.C. Proc. Natl. Acad. Sci. U.S.A. 103:10444-10449(2006) [PubMed: 16801538] [Abstract] Cited for: FUNCTION IN PHOSPHORYLATION OF TIAM1, FUNCTION IN CELL DIFFERENTIATION, INTERACTION WITH TIAM1. |
| [18] | "Large-scale identification and evolution indexing of tyrosine phosphorylation sites from murine brain." Ballif B.A., Carey G.R., Sunyaev S.R., Gygi S.P. J. Proteome Res. 7:311-318(2008) [PubMed: 18034455] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT TYR-515, MASS SPECTROMETRY. Tissue: Brain. |
| [19] | "TrkB (tropomyosin-related kinase B) controls the assembly and maintenance of GABAergic synapses in the cerebellar cortex." Chen A.I., Nguyen C.N., Copenhagen D.R., Badurek S., Minichiello L., Ranscht B., Reichardt L.F. J. Neurosci. 31:2769-2780(2011) [PubMed: 21414899] [Abstract] Cited for: FUNCTION IN SYNAPSE FORMATION. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | M33385 mRNA. Translation: AAA40482.1. X17647 mRNA. Translation: CAA35636.1. AK018789 mRNA. Translation: BAB31412.1. AK147391 mRNA. Translation: BAE27880.1. AK160789 mRNA. Translation: BAE36012.1. BC052014 mRNA. Translation: AAH52014.2. |
| IPI | IPI00128360. IPI00229333. IPI00229334. IPI00270098. |
| PIR | A35104. S06943. |
| RefSeq | NP_001020245.1. NM_001025074.1. NP_032771.1. NM_008745.2. |
| UniGene | Mm.130054. |
3D structure databases | |
| ProteinModelPortal | P15209. |
| SMR | P15209. Positions 32-385, 529-811. |
| ModBase | Search... |
Protein-protein interaction databases | |
| DIP | DIP-5722N. |
| IntAct | P15209. 1 interaction. |
| STRING | P15209. |
PTM databases | |
| PhosphoSite | P15209. |
Proteomic databases | |
| PRIDE | P15209. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000079828; ENSMUSP00000078757; ENSMUSG00000055254. ENSMUST00000109838; ENSMUSP00000105464; ENSMUSG00000055254. ENSMUST00000109839; ENSMUSP00000105465; ENSMUSG00000055254. ENSMUST00000109840; ENSMUSP00000105466; ENSMUSG00000055254. |
| GeneID | 18212. |
| KEGG | mmu:18212. |
| UCSC | uc007qui.1. mouse. |
Organism-specific databases | |
| CTD | 4915. |
| MGI | MGI:97384. Ntrk2. |
Phylogenomic databases | |
| eggNOG | roNOG12558. |
| GeneTree | ENSGT00590000082855. |
| HOGENOM | HBG402948. |
| HOVERGEN | HBG056735. |
| InParanoid | P15209. |
| OMA | KFVAYKA. |
| OrthoDB | EOG4255S6. |
| PhylomeDB | P15209. |
Enzyme and pathway databases | |
| BRENDA | 2.7.10.1. 3474. |
Gene expression databases | |
| ArrayExpress | P15209. |
| Bgee | P15209. |
| CleanEx | MM_NTRK2. |
| Genevestigator | P15209. |
| GermOnline | ENSMUSG00000055254. Mus musculus. |
Family and domain databases | |
| InterPro | IPR000483. Cys-rich_flank_reg_C. IPR007110. Ig-like. IPR013783. Ig-like_fold. IPR013098. Ig_I-set. IPR003598. Ig_sub2. IPR011009. Kinase-like_dom. IPR000372. LRR-contain_N. IPR000719. Prot_kinase_cat_dom. IPR017441. Protein_kinase_ATP_BS. IPR001245. Ser-Thr/Tyr_kinase. IPR020455. Tyr_kin_neurotrophic_rcpt_2. IPR008266. Tyr_kinase_AS. IPR020635. Tyr_kinase_cat_dom. IPR020777. Tyr_kinase_NGF_rcpt. IPR002011. Tyr_kinase_rcpt_2_CS. [Graphical view] |
| Gene3D | G3DSA:2.60.40.10. Ig-like_fold. 2 hits. |
| KO | K04360. |
| Pfam | PF07679. I-set. 2 hits. PF01462. LRRNT. 1 hit. PF07714. Pkinase_Tyr. 1 hit. [Graphical view] |
| PRINTS | PR01939. NTKRECEPTOR. PR01941. NTKRECEPTOR2. PR00109. TYRKINASE. |
| SMART | SM00408. IGc2. 1 hit. SM00082. LRRCT. 1 hit. SM00013. LRRNT. 1 hit. SM00219. TyrKc. 1 hit. [Graphical view] |
| SUPFAM | SSF56112. Kinase_like. 1 hit. |
| PROSITE | PS50835. IG_LIKE. 1 hit. PS00107. PROTEIN_KINASE_ATP. 1 hit. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00109. PROTEIN_KINASE_TYR. 1 hit. PS00239. RECEPTOR_TYR_KIN_II. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 293608. |
| SOURCE | Search... |
Entry information
| Entry name | NTRK2_MOUSE | ||||||||
| Accession | Primary (citable) accession number: P15209 Secondary accession number(s): Q3TUF9, Q80WU0, Q91XJ9 | ||||||||
| Entry history |
| ||||||||
| 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