Q8CBF3 (EPHB1_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 93.
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: Ephrin type-B receptor 1 EC=2.7.10.1 | ||
| 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 | 984 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 which binds promiscuously transmembrane ephrin-B family ligands residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. The signaling pathway downstream of the receptor is referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Cognate/functional ephrin ligands for this receptor include EFNB1, EFNB2 and EFNB3. During nervous system development, regulates retinal axon guidance redirecting ipsilaterally ventrotemporal retinal ganglion cells axons at the optic chiasm midline. This probably requires repulsive interaction with EFNB2. In the adult nervous system together with EFNB3, regulates chemotaxis, proliferation and polarity of the hippocampus neural progenitors. Beside its role in axon guidance plays also an important redundant role with other ephrin-B receptors in development and maturation of dendritic spines and synapse formation. May also regulate angiogenesis. More generally, may play a role in targeted cell migration and adhesion. Upon activation by EFNB1 and probably other ephrin-B ligands activates the MAPK/ERK and the JNK signaling cascades to regulate cell migration and adhesion respectively. Ref.8 Ref.9 Ref.10 Ref.11 |
| Catalytic activity | ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate. |
| Subunit structure | Heterotetramer upon binding of the ligand. The heterotetramer is composed of an ephrin dimer and a receptor dimer. Oligomerization is probably required to induce biological responses By similarity. Interacts with EPHB6; transphosphorylates EPHB6 to form an active signaling complex By similarity. Interacts with PICK1. Interacts (through Tyr-594) with NCK1 (via SH2 domain); activates the JUN cascade to regulate cell adhesion. The ligand-activated form interacts (through Tyr-928) with GRB7 and GRB10 (via SH2 domains). The ligand-activated form interacts (residues within the catalytic domain) with GRB2 (via SH2 domain). Interacts with GRB2, SHC1 and SRC; activates the MAPK/ERK cascade to regulate cell migration. Interacts with CBL; regulates receptor degradation through ubiquitination. Interacts with ACP1. Ref.4 Ref.5 Ref.6 Ref.7 Ref.13 |
| Subcellular location | Cell membrane; Single-pass type I membrane protein By similarity. Early endosome membrane By similarity. Cell projection › dendrite Ref.8. |
| Tissue specificity | Expressed in neural stem and progenitor cells in the dentate gyrus. Ref.10 |
| Developmental stage | Expressed in growth cones of ventrotemporal (uncrossed) retinal ganglion cells that give rise to ipsilateral projections (at protein level). Ref.9 Ref.11 |
| Post-translational modification | Phosphorylated. Autophosphorylation is stimulated by the ligand EFNB1. Required for interaction with SH2 domain-containing interactors, for activation of the MAPK/ERK and JUN signaling cascades and for ubiquitination by CBL By similarity. Ubiquitinated; (EFNB1)ligand-induced poly- and/or multi-ubiquitination by CBL is regulated by SRC and leads to lysosomal degradation. Ref.13 |
| Disruption phenotype | Mice development is apparently normal. However, they display a dramatic reduction of ipsilateral retinal projection. Mice do not develop neuropathic algesia and physical dependence to morphine. Ref.9 Ref.12 |
| Sequence similarities | Belongs to the protein kinase superfamily. Tyr protein kinase family. Ephrin receptor subfamily. Contains 1 Eph LBD (Eph ligand-binding) domain. Contains 2 fibronectin type-III domains. Contains 1 protein kinase domain. Contains 1 SAM (sterile alpha motif) domain. |
Ontologies
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q8CBF3-1) 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: Q8CBF3-2) The sequence of this isoform differs from the canonical sequence as follows: 588-628: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 17 | 17 | Potential | ||||||
| Chain | 18 – 984 | 967 | Ephrin type-B receptor 1 | PRO_0000260317 | |||||
Regions | |||||||||
| Topological domain | 18 – 540 | 523 | Extracellular Potential | ||||||
| Transmembrane | 541 – 563 | 23 | Helical; Potential | ||||||
| Topological domain | 564 – 984 | 421 | Cytoplasmic Potential | ||||||
| Domain | 19 – 201 | 183 | Eph LBD | ||||||
| Domain | 323 – 424 | 102 | Fibronectin type-III 1 | ||||||
| Domain | 430 – 525 | 96 | Fibronectin type-III 2 | ||||||
| Domain | 619 – 882 | 264 | Protein kinase | ||||||
| Domain | 911 – 975 | 65 | SAM | ||||||
| Nucleotide binding | 625 – 633 | 9 | ATP By similarity | ||||||
| Motif | 982 – 984 | 3 | PDZ-binding Potential | ||||||
| Compositional bias | 183 – 319 | 137 | Cys-rich | ||||||
Sites | |||||||||
| Active site | 744 | 1 | Proton acceptor By similarity | ||||||
| Binding site | 651 | 1 | ATP By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 928 | 1 | Phosphotyrosine; by autocatalysis By similarity | ||||||
| Glycosylation | 334 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 426 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 480 | 1 | N-linked (GlcNAc...) Potential | ||||||
Natural variations | |||||||||
| Alternative sequence | 588 – 628 | 41 | Missing in isoform 2. | VSP_021595 | |||||
Experimental info | |||||||||
| Sequence conflict | 72 | 1 | L → Q in BAE22386. Ref.1 | ||||||
| Sequence conflict | 187 | 1 | L → P in BAE22386. Ref.1 | ||||||
| Sequence conflict | 194 | 1 | K → I in AAH57301. Ref.3 | ||||||
| Sequence conflict | 641 | 1 | P → Q in BAC29348. Ref.1 | ||||||
| Sequence conflict | 678 | 1 | P → R in AAH57301. Ref.3 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "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] (ISOFORMS 1 AND 2). Strain: C57BL/6J. Tissue: Cerebellum and Olfactory bulb. |
| [2] | "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. |
| [3] | "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: C57BL/6. Tissue: Brain. |
| [4] | "Nck recruitment to Eph receptor, EphB1/ELK, couples ligand activation to c-Jun kinase." Stein E., Huynh-Do U., Lane A.A., Cerretti D.P., Daniel T.O. J. Biol. Chem. 273:1303-1308(1998) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH NCK1. Tissue: Kidney. |
| [5] | "PDZ proteins bind, cluster, and synaptically colocalize with Eph receptors and their ephrin ligands." Torres R., Firestein B.L., Dong H., Staudinger J., Olson E.N., Huganir R.L., Bredt D.S., Gale N.W., Yancopoulos G.D. Neuron 21:1453-1463(1998) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH PICK1. |
| [6] | "EphB1 associates with Grb7 and regulates cell migration." Han D.C., Shen T.L., Miao H., Wang B., Guan J.L. J. Biol. Chem. 277:45655-45661(2002) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH GRB7. |
| [7] | "EphB1 recruits c-Src and p52Shc to activate MAPK/ERK and promote chemotaxis." Vindis C., Cerretti D.P., Daniel T.O., Huynh-Do U. J. Cell Biol. 162:661-671(2003) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH GRB2; SHC1 AND SRC. |
| [8] | "Multiple EphB receptor tyrosine kinases shape dendritic spines in the hippocampus." Henkemeyer M., Itkis O.S., Ngo M., Hickmott P.W., Ethell I.M. J. Cell Biol. 163:1313-1326(2003) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION IN DENDRITIC SPINE DEVELOPMENT, FUNCTION IN EXCITATORY SYNAPSE FORMATION, SUBCELLULAR LOCATION. |
| [9] | "Ephrin-B2 and EphB1 mediate retinal axon divergence at the optic chiasm." Williams S.E., Mann F., Erskine L., Sakurai T., Wei S., Rossi D.J., Gale N.W., Holt C.E., Mason C.A., Henkemeyer M. Neuron 39:919-935(2003) [PubMed] [Europe PMC] [Abstract] Cited for: DISRUPTION PHENOTYPE, FUNCTION IN RETINAL GLANGLION CELL AXON GUIDANCE, DEVELOPMENTAL STAGE. |
| [10] | "EphB receptors regulate stem/progenitor cell proliferation, migration, and polarity during hippocampal neurogenesis." Chumley M.J., Catchpole T., Silvany R.E., Kernie S.G., Henkemeyer M. J. Neurosci. 27:13481-13490(2007) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION IN NEUROGENESIS, IDENTIFICATION OF EFNB3 AS LIGAND, TISSUE SPECIFICITY. |
| [11] | "Zic2 regulates retinal ganglion cell axon avoidance of ephrinB2 through inducing expression of the guidance receptor EphB1." Lee R., Petros T.J., Mason C.A. J. Neurosci. 28:5910-5919(2008) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, DEVELOPMENTAL STAGE. |
| [12] | "Targeted mutation of EphB1 receptor prevents development of neuropathic hyperalgesia and physical dependence on morphine in mice." Han Y., Song X.S., Liu W.T., Henkemeyer M., Song X.J. Mol. Pain 4:60-60(2008) [PubMed] [Europe PMC] [Abstract] Cited for: DISRUPTION PHENOTYPE. |
| [13] | "Ligand binding induces Cbl-dependent EphB1 receptor degradation through the lysosomal pathway." Fasen K., Cerretti D.P., Huynh-Do U. Traffic 9:251-266(2008) [PubMed] [Europe PMC] [Abstract] Cited for: UBIQUITINATION BY CBL, INTERACTION WITH CBL. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AK036148 mRNA. Translation: BAC29320.1. AK036211 mRNA. Translation: BAC29348.1. AK135018 mRNA. Translation: BAE22386.1. CT025594 AC156635 Genomic DNA. Translation: CAM23741.1.BC057301 mRNA. Translation: AAH57301.1. |
| IPI | IPI00228309. IPI00808241. |
| RefSeq | NP_001161768.1. NM_001168296.1. NP_775623.3. NM_173447.3. |
| UniGene | Mm.22897. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1JPA based on UniProtKB P54763. |
| ProteinModelPortal | Q8CBF3. |
| SMR | Q8CBF3. Positions 18-528, 595-984. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q8CBF3. 1 interaction. |
| STRING | 10090.ENSMUSP00000035129. |
PTM databases | |
| PhosphoSite | Q8CBF3. |
Proteomic databases | |
| PaxDb | Q8CBF3. |
| PRIDE | Q8CBF3. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000035129; ENSMUSP00000035129; ENSMUSG00000032537. ENSMUST00000085169; ENSMUSP00000082261; ENSMUSG00000032537. |
| GeneID | 270190. |
| KEGG | mmu:270190. |
| UCSC | uc012gzg.1. mouse. |
Organism-specific databases | |
| CTD | 2047. |
| MGI | MGI:1096337. Ephb1. |
Phylogenomic databases | |
| eggNOG | COG0515. |
| GeneTree | ENSGT00700000104274. |
| HOGENOM | HOG000233856. |
| HOVERGEN | HBG062180. |
| InParanoid | Q8CBF3. |
| KO | K05110. |
| OMA | ELGWTAN. |
| OrthoDB | EOG4W9J35. |
Gene expression databases | |
| ArrayExpress | Q8CBF3. |
| Bgee | Q8CBF3. |
| CleanEx | MM_EPHB1. |
| Genevestigator | Q8CBF3. |
| GermOnline | ENSMUSG00000032537. Mus musculus. |
Family and domain databases | |
| Gene3D | 1.10.150.50. 1 hit. 2.60.40.10. 2 hits. |
| InterPro | IPR001090. Ephrin_rcpt_lig-bd_dom. IPR003961. Fibronectin_type3. IPR008979. Galactose-bd-like. IPR009030. Growth_fac_rcpt. IPR013783. Ig-like_fold. IPR011009. Kinase-like_dom. IPR000719. Prot_kinase_cat_dom. IPR017441. Protein_kinase_ATP_BS. IPR001660. SAM. IPR013761. SAM/pointed. IPR021129. SAM_type1. IPR001245. Ser-Thr/Tyr_kinase_cat_dom. IPR008266. Tyr_kinase_AS. IPR020635. Tyr_kinase_cat_dom. IPR016257. Tyr_kinase_ephrin_rcpt. IPR001426. Tyr_kinase_rcpt_V_CS. [Graphical view] |
| Pfam | PF01404. Ephrin_lbd. 1 hit. PF00041. fn3. 2 hits. PF07714. Pkinase_Tyr. 1 hit. PF00536. SAM_1. 1 hit. [Graphical view] |
| PIRSF | PIRSF000666. TyrPK_ephrin_receptor. 1 hit. |
| PRINTS | PR00109. TYRKINASE. |
| SMART | SM00615. EPH_lbd. 1 hit. SM00060. FN3. 2 hits. SM00454. SAM. 1 hit. SM00219. TyrKc. 1 hit. [Graphical view] |
| SUPFAM | SSF49265. FN_III-like. 2 hits. SSF49785. Gal_bind_like. 1 hit. SSF57184. Grow_fac_recept. 1 hit. SSF56112. Kinase_like. 1 hit. SSF47769. SAM_homology. 1 hit. |
| PROSITE | PS01186. EGF_2. 1 hit. Uncertain. PS51550. EPH_LBD. 1 hit. PS50853. FN3. 2 hits. PS00107. PROTEIN_KINASE_ATP. 1 hit. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00109. PROTEIN_KINASE_TYR. 1 hit. PS00790. RECEPTOR_TYR_KIN_V_1. 1 hit. PS00791. RECEPTOR_TYR_KIN_V_2. 1 hit. PS50105. SAM_DOMAIN. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 393293. |
| SOURCE | Search... |
Entry information
| Entry name | EPHB1_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q8CBF3 Secondary accession number(s): B1B1C2 Q8CBE2 | ||||||||
| 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
