Descriptions

Ephrin type-B receptor 2 is a membrane-associated protein that mediates axon guidance, cell migration and morphogenesis. The Eph receptor tyrosine kinase family is regulated by autophosphorylation within the juxtamembrane region and the kinase activation segment. The structure, supported by mutagenesis data, reveals that the juxtamembrane segment adopts a helical conformation that distorts the small lobe of the kinase domain, and blocks the activation segment from attaining an activated conformation. Phosphorylation of the conserved juxtamembrane tyrosines would relieve this autoinhibition by disturbing the association of the juxtamembrane segment with the kinase domain, while liberating phosphotyrosine sites for binding SH2 domains of target proteins.

Autoinhibitory domains (AIDs)

Target domain

677-938 (Protein kinase domain)

Relief mechanism

PTM

Assay

Accessory elements

819-845 (Activation loop from InterPro)

Target domain

677-938 (Protein kinase domain)

Relief mechanism

Assay

Autoinhibited structure

Activated structure

1 structures for P54757

Entry ID Method Resolution Chain Position Source
AF-P54757-F1 Predicted AlphaFoldDB

No variants for P54757

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for P54757

No associated diseases with P54757

12 regional properties for P54757

Type Name Position InterPro Accession
domain Protein kinase domain 677 - 938 IPR000719
domain Ephrin receptor ligand binding domain 62 - 240 IPR001090
domain Serine-threonine/tyrosine-protein kinase, catalytic domain 677 - 934 IPR001245
conserved_site Tyrosine-protein kinase, receptor class V, conserved site 216 - 236 IPR001426-1
conserved_site Tyrosine-protein kinase, receptor class V, conserved site 278 - 298 IPR001426-2
domain Sterile alpha motif domain 967 - 1005 IPR001660
domain Fibronectin type III 359 - 469 IPR003961-1
domain Fibronectin type III 470 - 564 IPR003961-2
active_site Tyrosine-protein kinase, active site 798 - 810 IPR008266
domain Tyrosine-protein kinase ephrin type A/B receptor-like 299 - 337 IPR011641
domain Tyrosine-protein kinase, catalytic domain 677 - 934 IPR020635
domain Ephrin receptor, transmembrane domain 578 - 674 IPR027936

Functions

Description
EC Number 2.7.10.1 Protein-tyrosine kinases
Subcellular Localization
  • Cell membrane ; Single-pass type I membrane protein
  • Cell projection, axon
  • Cell projection, dendrite
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

9 GO annotations of cellular component

Name Definition
adherens junction A cell-cell junction composed of the epithelial cadherin-catenin complex. The epithelial cadherins, or E-cadherins, of each interacting cell extend through the plasma membrane into the extracellular space and bind to each other. The E-cadherins bind to catenins on the cytoplasmic side of the membrane, where the E-cadherin-catenin complex binds to cytoskeletal components and regulatory and signaling molecules.
axon The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
cell periphery The broad region around and including the plasma membrane of a cell, encompassing the cell cortex (inside the cell), the plasma membrane, and any external encapsulating structures.
dendrite A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
external side of plasma membrane The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
neuronal cell body The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
perinuclear region of cytoplasm Cytoplasm situated near, or occurring around, the nucleus.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
rough endoplasmic reticulum The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae.

5 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
ephrin receptor activity Combining with an ephrin receptor ligand to initiate a change in cell activity.
GPI-linked ephrin receptor activity Combining with a GPI-anchored ephrin to initiate a change in cell activity.
growth factor binding Binding to a growth factor, proteins or polypeptides that stimulate a cell or organism to grow or proliferate.
transmembrane-ephrin receptor activity Combining with a transmembrane ephrin to initiate a change in cell activity.

14 GO annotations of biological process

Name Definition
axon guidance The chemotaxis process that directs the migration of an axon growth cone to a specific target site in response to a combination of attractive and repulsive cues.
cAMP-mediated signaling Any intracellular signal transduction in which the signal is passed on within the cell via cyclic AMP (cAMP). Includes production of cAMP, and downstream effectors that further transmit the signal within the cell.
cellular response to follicle-stimulating hormone stimulus Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a follicle-stimulating hormone stimulus.
cellular response to forskolin Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a forskolin stimulus.
dendritic spine morphogenesis The process in which the anatomical structures of a dendritic spine are generated and organized. A dendritic spine is a protrusion from a dendrite and a specialized subcellular compartment involved in synaptic transmission.
ephrin receptor signaling pathway The series of molecular signals initiated by ephrin binding to its receptor, and ending with the regulation of a downstream cellular process, e.g. transcription.
hippocampus development The progression of the hippocampus over time from its initial formation until its mature state.
negative regulation of cell adhesion Any process that stops, prevents, or reduces the frequency, rate or extent of cell adhesion.
neuron development The process whose specific outcome is the progression of a neuron over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell.
phosphorylation The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
positive regulation of CREB transcription factor activity Any process that activates or increases the frequency, rate or extent of activity of the transcription factor CREB.
regulation of actin cytoskeleton organization Any process that modulates the frequency, rate or extent of the formation, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments and their associated proteins.
regulation of GTPase activity Any process that modulates the rate of GTP hydrolysis by a GTPase.
regulation of insulin secretion involved in cellular response to glucose stimulus Any process that modulates the frequency, rate or extent of the regulated release of insulin that contributes to the response of a cell to glucose.

52 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
P28693 EPHB2 Ephrin type-B receptor 2 Gallus gallus (Chicken) PR
Q07496 EPHA4 Ephrin type-A receptor 4 Gallus gallus (Chicken) SS
Q07494 EPHB1 Ephrin type-B receptor 1 Gallus gallus (Chicken) SS
Q07497 EPHB5 Ephrin type-B receptor 5 Gallus gallus (Chicken) PR
P29318 EPHA3 Ephrin type-A receptor 3 Gallus gallus (Chicken) SS
O42422 EPHA7 Ephrin type-A receptor 7 Gallus gallus (Chicken) SS
Q07498 EPHB3 Ephrin type-B receptor 3 Gallus gallus (Chicken) SS
P54755 EPHA5 Ephrin type-A receptor 5 Gallus gallus (Chicken) SS
P0C0K6 EPHB6 Ephrin type-B receptor 6 Pan troglodytes (Chimpanzee) SS
P29322 EPHA8 Ephrin type-A receptor 8 Homo sapiens (Human) SS
P21709 EPHA1 Ephrin type-A receptor 1 Homo sapiens (Human) SS
P54764 EPHA4 Ephrin type-A receptor 4 Homo sapiens (Human) SS
P54753 EPHB3 Ephrin type-B receptor 3 Homo sapiens (Human) SS
P29320 EPHA3 Ephrin type-A receptor 3 Homo sapiens (Human) PR
P54760 EPHB4 Ephrin type-B receptor 4 Homo sapiens (Human) SS
P29317 EPHA2 Ephrin type-A receptor 2 Homo sapiens (Human) SS
Q15375 EPHA7 Ephrin type-A receptor 7 Homo sapiens (Human) SS
Q5JZY3 EPHA10 Ephrin type-A receptor 10 Homo sapiens (Human) SS
P29323 EPHB2 Ephrin type-B receptor 2 Homo sapiens (Human) EV
Q9UF33 EPHA6 Ephrin type-A receptor 6 Homo sapiens (Human) SS
P54762 EPHB1 Ephrin type-B receptor 1 Homo sapiens (Human) SS
O15197 EPHB6 Ephrin type-B receptor 6 Homo sapiens (Human) SS
P54756 EPHA5 Ephrin type-A receptor 5 Homo sapiens (Human) SS
P54754 Ephb3 Ephrin type-B receptor 3 Mus musculus (Mouse) SS
Q03145 Epha2 Ephrin type-A receptor 2 Mus musculus (Mouse) PR
Q03137 Epha4 Ephrin type-A receptor 4 Mus musculus (Mouse) SS
Q61772 Epha7 Ephrin type-A receptor 7 Mus musculus (Mouse) SS
O09127 Epha8 Ephrin type-A receptor 8 Mus musculus (Mouse) SS
Q8CBF3 Ephb1 Ephrin type-B receptor 1 Mus musculus (Mouse) SS
Q8BYG9 Epha10 Ephrin type-A receptor 10 Mus musculus (Mouse) SS
P29319 Epha3 Ephrin type-A receptor 3 Mus musculus (Mouse) SS
Q62413 Epha6 Ephrin type-A receptor 6 Mus musculus (Mouse) SS
Q60750 Epha1 Ephrin type-A receptor 1 Mus musculus (Mouse) SS
P54763 Ephb2 Ephrin type-B receptor 2 Mus musculus (Mouse) SS
P54761 Ephb4 Ephrin type-B receptor 4 Mus musculus (Mouse) PR
O08644 Ephb6 Ephrin type-B receptor 6 Mus musculus (Mouse) PR
Q60629 Epha5 Ephrin type-A receptor 5 Mus musculus (Mouse) SS
P54759 Epha7 Ephrin type-A receptor 7 Rattus norvegicus (Rat) SS
P09759 Ephb1 Ephrin type-B receptor 1 Rattus norvegicus (Rat) SS
O08680 Epha3 Ephrin type-A receptor 3 Rattus norvegicus (Rat) SS
P0C0K7 Ephb6 Ephrin type-B receptor 6 Rattus norvegicus (Rat) SS
O61460 vab-1 Ephrin receptor 1 Caenorhabditis elegans SS
Q3E8W4 ANX2 Receptor-like protein kinase ANXUR2 Arabidopsis thaliana (Mouse-ear cress) PR
Q8VZJ9 CRCK2 Calmodulin-binding receptor-like cytoplasmic kinase 2 Arabidopsis thaliana (Mouse-ear cress) PR
Q9FLW0 At5g24010 Probable receptor-like protein kinase At5g24010 Arabidopsis thaliana (Mouse-ear cress) PR
Q9LSV3 WAKL16 Putative wall-associated receptor kinase-like 16 Arabidopsis thaliana (Mouse-ear cress) PR
Q9M342 WAKL15 Wall-associated receptor kinase-like 15 Arabidopsis thaliana (Mouse-ear cress) PR
Q9M345 LECRK42 L-type lectin-domain containing receptor kinase IV.2 Arabidopsis thaliana (Mouse-ear cress) PR
Q9SCZ4 FER Receptor-like protein kinase FERONIA Arabidopsis thaliana (Mouse-ear cress) PR
O13147 ephb3 Ephrin type-B receptor 3 Danio rerio (Zebrafish) (Brachydanio rerio) SS
O73878 ephb4b Ephrin type-B receptor 4b Danio rerio (Zebrafish) (Brachydanio rerio) SS
O13146 epha3 Ephrin type-A receptor 3 Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MRGSGPRGAG RRRTQGRGGG GDTPRVPASL AGCYSAPLKG PLWTCLLLCA ALRTLLASPS
70 80 90 100 110 120
NEVNLLDSRT VLGDLGWIAF PKNGWEEIGE VDENYAPIHT YQVCKVMEQN QNNWLLTSWI
130 140 150 160 170 180
SNEGASRIFI ELKFTLRDCN SLPGGLGTCK ETFNMYYFES DDENGRNIKD NQYIKIDTIA
190 200 210 220 230 240
ADESFTELDL GDRVMKLNTE VRDVGPLSKK GFYLAFQDVG ACIALVSVRV YYKKCPSVVR
250 260 270 280 290 300
HLAVFPDTIT GADSSQLLEV SGSCVNHSVT DDPPKMHCSA EGEWLVPIGK CMCKAGYEEK
310 320 330 340 350 360
NGTCQVCRPG FFKASPHSQT CSKCPPHSYT HEEASTSCVC EKDYFRRESD PPTMACTRPP
370 380 390 400 410 420
SAPRNAISNV NETSVFLEWI PPADTGGGKD VSYYILCKKC NSHAGVCEEC GGHVRYLPQQ
430 440 450 460 470 480
IGLKNTSVMM ADPLAHTNYT FEIEAVNGVS DLSPGTRQYV SVNVTTNQAA PSPVTNVKKG
490 500 510 520 530 540
KIAKNSISLS WQEPDRPNGI ILEYEIKYFE KDQETSYTII KSKETTITAE GLKPASVYVF
550 560 570 580 590 600
QIRARTAAGY GVFSRRFEFE TTPVFGASND QSQIPIIGVS VTVGVILLAV MIGFLLSGSC
610 620 630 640 650 660
CECGCGRASS LCAVAHPSLI WRCGYSKAKQ DPEEEKMHFH NGHIKLPGVR TYIDPHTYED
670 680 690 700 710 720
PTQAVHEFGK EIEASCITIE RVIGAGEFGE VCSGRLKLPG KRELPVATKT LKVGYTEKQR
730 740 750 760 770 780
RDFLSEASIM GQFDHPNIIH LEGVVTKSKP VMIVTEYMEN GSLDTFLKKN DGQFTVIQLV
790 800 810 820 830 840
GMLRGIAAGM KYLSDMGYVH RDLAARNILI NSNLVCKVSD FGLSRVLEDD PEAAYTTRGG
850 860 870 880 890 900
KIPIRWTAPE AIAFRKFTSA SDVWSYGIVM WEVVSYGERP YWEMTNQDVI KAVEEGYRLP
910 920 930 940 950 960
SPMDCPAALY QLMLDCWQKD RNSRPKFDDI VNMLDKLIRN PSSLKTLVNA SSRVSTLLAE
970 980 990 1000
HGSLGSGAYR SVGEWLEATK MGRYTEIFME NGYSSMDAVA QVTLE