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

621-882 (Protein kinase domain)

Relief mechanism

PTM

Assay

Accessory elements

763-789 (Activation loop from InterPro)

Target domain

621-882 (Protein kinase domain)

Relief mechanism

Assay

Autoinhibited structure

Activated structure

1 structures for Q07496

Entry ID Method Resolution Chain Position Source
AF-Q07496-F1 Predicted AlphaFoldDB

No variants for Q07496

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q07496

No associated diseases with Q07496

9 regional properties for Q07496

Type Name Position InterPro Accession
domain Protein kinase domain 33 - 301 IPR000719-1
domain Protein kinase domain 411 - 674 IPR000719-2
domain AGC-kinase, C-terminal 302 - 371 IPR000961
active_site Serine/threonine-protein kinase, active site 157 - 169 IPR008271-1
active_site Serine/threonine-protein kinase, active site 526 - 538 IPR008271-2
binding_site Protein kinase, ATP binding site 39 - 65 IPR017441-1
binding_site Protein kinase, ATP binding site 417 - 440 IPR017441-2
domain Protein kinase, C-terminal 322 - 361 IPR017892
domain MSK2, N-terminal catalytic domain 32 - 364 IPR037714

Functions

Description
EC Number 2.7.10.1 Protein-tyrosine kinases
Subcellular Localization
  • Cell membrane ; Single-pass type I membrane protein
  • Early endosome
  • Clustered upon activation and targeted to early endosome
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

4 GO annotations of cellular component

Name Definition
cytoplasm The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular 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.
early endosome membrane The lipid bilayer surrounding an early endosome.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

5 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
DH domain binding Binding to a DH (Dbl homology) domain of a protein. The DH domain contains three structurally conserved regions separated by more variable regions. It is composed of 11 alpha helices that are folded into a flattened, elongated alpha-helix bundle in which two of the three conserved regions, conserved region 1 (CR1) and conserved region 3 (CR3), are exposed near the centre of one surface. CR1 and CR3, together with a part of alpha-6 and the DH/PH (pleckstrin homology) junction site, constitute the Rho GTPase interacting pocket.
GPI-linked ephrin receptor activity Combining with a GPI-anchored ephrin to initiate a change in cell activity.
protein kinase activity Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction
transmembrane-ephrin receptor activity Combining with a transmembrane ephrin to initiate a change in cell activity.

10 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.
cell adhesion The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
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.
fasciculation of sensory neuron axon The collection of sensory neuron axons into a bundle of rods, known as a fascicle.
peptidyl-tyrosine phosphorylation The phosphorylation of peptidyl-tyrosine to form peptidyl-O4'-phospho-L-tyrosine.
positive regulation of Rho guanyl-nucleotide exchange factor activity Any process that activates or increases the frequency, rate or extent of Rho guanyl-nucleotide exchange factor activity.
protein autophosphorylation The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).
regulation of GTPase activity Any process that modulates the rate of GTP hydrolysis by a GTPase.
segmentation The regionalization process that divides an organism or part of an organism into a series of semi-repetitive parts, or segments, often arranged along a longitudinal axis.
somitogenesis The formation of mesodermal clusters that are arranged segmentally along the anterior posterior axis of an embryo.

52 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
Q07494 EPHB1 Ephrin type-B receptor 1 Gallus gallus (Chicken) SS
O42422 EPHA7 Ephrin type-A receptor 7 Gallus gallus (Chicken) SS
P29318 EPHA3 Ephrin type-A receptor 3 Gallus gallus (Chicken) SS
Q07497 EPHB5 Ephrin type-B receptor 5 Gallus gallus (Chicken) PR
P28693 EPHB2 Ephrin type-B receptor 2 Gallus gallus (Chicken) PR
P54755 EPHA5 Ephrin type-A receptor 5 Gallus gallus (Chicken) SS
Q07498 EPHB3 Ephrin type-B receptor 3 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
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
P54756 EPHA5 Ephrin type-A receptor 5 Homo sapiens (Human) SS
O15197 EPHB6 Ephrin type-B receptor 6 Homo sapiens (Human) SS
P54764 EPHA4 Ephrin type-A receptor 4 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
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
Q60629 Epha5 Ephrin type-A receptor 5 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
Q03137 Epha4 Ephrin type-A receptor 4 Mus musculus (Mouse) SS
P54757 Epha5 Ephrin type-A receptor 5 Rattus norvegicus (Rat) SS
P54759 Epha7 Ephrin type-A receptor 7 Rattus norvegicus (Rat) SS
P09759 Ephb1 Ephrin type-B receptor 1 Rattus norvegicus (Rat) SS
P0C0K7 Ephb6 Ephrin type-B receptor 6 Rattus norvegicus (Rat) SS
O08680 Epha3 Ephrin type-A receptor 3 Rattus norvegicus (Rat) SS
O61460 vab-1 Ephrin receptor 1 Caenorhabditis elegans SS
Q7X8C5 WAKL2 Wall-associated receptor kinase-like 2 Arabidopsis thaliana (Mouse-ear cress) PR
Q9S9M2 WAKL4 Wall-associated receptor kinase-like 4 Arabidopsis thaliana (Mouse-ear cress) PR
Q9LMN7 WAK5 Wall-associated receptor kinase 5 Arabidopsis thaliana (Mouse-ear cress) PR
Q9C9L5 WAKL9 Wall-associated receptor kinase-like 9 Arabidopsis thaliana (Mouse-ear cress) PR
Q8VYA3 WAKL10 Wall-associated receptor kinase-like 10 Arabidopsis thaliana (Mouse-ear cress) PR
Q9M092 WAKL17 Wall-associated receptor kinase-like 17 Arabidopsis thaliana (Mouse-ear cress) PR
Q0WNY5 WAKL18 Wall-associated receptor kinase-like 18 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
MAGVPVGALL PLLVGVCGAV TGSRVYPANE VTLLDSRSVQ GELGWIASPL EGGWEEVSIM
70 80 90 100 110 120
DEKNTPIRTY QVCNVMEPSQ NNWLRTDWIP REGAQRVYIE IKFTLRDCNS LPGVMGTCKE
130 140 150 160 170 180
TFNLYYYESN NDKERFIRES QFAKIDTIAA DESFTQVDIG DRIMKLNTEV RDVGPLSKKG
190 200 210 220 230 240
FYLAFQDVGA CIALVSVRVF YKKCPLTVRN LAQFPDTITG ADTSSLVEVR GSCVNNSEEK
250 260 270 280 290 300
DVPKMYCGAD GEWLVPIGNC LCNAGYEERN GECQACKIGY YKALSTDVAC AKCPPHSYSI
310 320 330 340 350 360
WEGSTSCTCD RGFFRAENDA ASMPCTRPPS APQNLISNVN ETSVNLEWSA PQNKGGRDDI
370 380 390 400 410 420
SYNVVCKRCG AGEPSHCRSC GSGVHFSPQQ NGLKTTKVSI TDLLAHTNYT FEVWAVNGVS
430 440 450 460 470 480
KHNPSQDQAV SVTVTTNQAA PSPIALIQAK EITRHSVALA WLEPDRPNGV ILEYEVKYYE
490 500 510 520 530 540
KDQNERSYRI VKTASRNTDI KGLNPLTSYV FHVRARTAAG YGDFSGPFEF TTNTVPSPII
550 560 570 580 590 600
GDGTNPTVLL VSVAGSVVLV VILIAAFVIS RRRSKYSKAK QEADEEKHLN QGVRTYVDPF
610 620 630 640 650 660
TYEDPNQAVR EFAKEIDASC IKIEKVIGVG EFGEVCSGRL KVPGKREICV AIKTLKAGYT
670 680 690 700 710 720
DKQRRDFLSE ASIMGQFDHP NIIHLEGVVT KCKPVMIITE YMENGSLDAF LRKNDGRFTV
730 740 750 760 770 780
IQLVGMLRGI GSGMKYLSDM SYVHRDLAAR NILVNSNLVC KVSDFGMSRV LEDDPEAAYT
790 800 810 820 830 840
TRGGKIPIRW TAPEAIAYRK FTSASDVWSY GIVMWEVMSY GERPYWDMSN QDVIKAIEEG
850 860 870 880 890 900
YRLPPPMDCP IALHQLMLDC WQKERSDRPK FGQIVNMLDK LIRNPNSLKR TGSESSRPST
910 920 930 940 950 960
ALLDPSSPEF SAVVSVSDWL QAIKMERYKD NFTAAGYTTL EAVVHMNQDD LARIGITAIT
970 980
HQNKILSSVQ AMRSQMQQMH GRMVPV