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

631-934 (Protein kinase domain)

Relief mechanism

PTM

Assay

Accessory elements

815-841 (Activation loop from InterPro)

Target domain

631-944 (Protein kinase domain)

Relief mechanism

Assay

Autoinhibited structure

Activated structure

1 structures for Q9UF33

Entry ID Method Resolution Chain Position Source
AF-Q9UF33-F1 Predicted AlphaFoldDB

2 variants for Q9UF33

Variant ID(s) Position Change Description Diseaes Association Provenance
VAR_042149 704 F>S No UniProt
rs4857276
VAR_055991
711 A>V No UniProt
dbSNP

No associated diseases with Q9UF33

16 regional properties for Q9UF33

Type Name Position InterPro Accession
domain Protein kinase domain 631 - 944 IPR000719
domain Ephrin receptor ligand binding domain 34 - 212 IPR001090
domain Serine-threonine/tyrosine-protein kinase, catalytic domain 631 - 712 IPR001245-1
domain Serine-threonine/tyrosine-protein kinase, catalytic domain 744 - 930 IPR001245-2
conserved_site Tyrosine-protein kinase, receptor class V, conserved site 188 - 208 IPR001426-1
conserved_site Tyrosine-protein kinase, receptor class V, conserved site 250 - 270 IPR001426-2
domain Sterile alpha motif domain 958 - 1025 IPR001660
domain Fibronectin type III 331 - 441 IPR003961-1
domain Fibronectin type III 442 - 537 IPR003961-2
active_site Tyrosine-protein kinase, active site 794 - 806 IPR008266
domain Tyrosine-protein kinase ephrin type A/B receptor-like 272 - 312 IPR011641
binding_site Protein kinase, ATP binding site 637 - 663 IPR017441
domain Tyrosine-protein kinase, catalytic domain 631 - 930 IPR020635
domain Ephrin receptor, transmembrane domain 551 - 628 IPR027936
domain Ephrin type-A receptor 6, ligand binding domain 34 - 206 IPR034280
domain EPH-A6 , SAM domain 961 - 1024 IPR042746

Functions

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

3 GO annotations of cellular component

Name Definition
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.
nucleoplasm That part of the nuclear content other than the chromosomes or the nucleolus.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

2 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
transmembrane-ephrin receptor activity Combining with a transmembrane ephrin to initiate a change in cell activity.

3 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.
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.
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.

49 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
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
P21709 EPHA1 Ephrin type-A receptor 1 Homo sapiens (Human) SS
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
P54756 EPHA5 Ephrin type-A receptor 5 Homo sapiens (Human) SS
P54762 EPHB1 Ephrin type-B receptor 1 Homo sapiens (Human) SS
P29322 EPHA8 Ephrin type-A receptor 8 Homo sapiens (Human) SS
P29320 EPHA3 Ephrin type-A receptor 3 Homo sapiens (Human) PR
P54764 EPHA4 Ephrin type-A receptor 4 Homo sapiens (Human) SS
P54753 EPHB3 Ephrin type-B receptor 3 Homo sapiens (Human) SS
Q5JZY3 EPHA10 Ephrin type-A receptor 10 Homo sapiens (Human) SS
O15197 EPHB6 Ephrin type-B receptor 6 Homo sapiens (Human) SS
P29323 EPHB2 Ephrin type-B receptor 2 Homo sapiens (Human) EV
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
Q60629 Epha5 Ephrin type-A receptor 5 Mus musculus (Mouse) SS
P29319 Epha3 Ephrin type-A receptor 3 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
Q62413 Epha6 Ephrin type-A receptor 6 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
Q8RWZ5 SD25 G-type lectin S-receptor-like serine/threonine-protein kinase SD2-5 Arabidopsis thaliana (Mouse-ear cress) PR
Q94AG2 SERK1 Somatic embryogenesis receptor kinase 1 Arabidopsis thaliana (Mouse-ear cress) PR
Q3E991 PRK6 Pollen receptor-like kinase 6 Arabidopsis thaliana (Mouse-ear cress) PR
Q9FXF2 RKF1 Probable LRR receptor-like serine/threonine-protein kinase RFK1 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
MGGCEVREFL LQFGFFLPLL TAWPGDCSHV SNNQVVLLDT TTVLGELGWK TYPLNGWDAI
70 80 90 100 110 120
TEMDEHNRPI HTYQVCNVME PNQNNWLRTN WISRDAAQKI YVEMKFTLRD CNSIPWVLGT
130 140 150 160 170 180
CKETFNLFYM ESDESHGIKF KPNQYTKIDT IAADESFTQM DLGDRILKLN TEIREVGPIE
190 200 210 220 230 240
RKGFYLAFQD IGACIALVSV RVFYKKCPFT VRNLAMFPDT IPRVDSSSLV EVRGSCVKSA
250 260 270 280 290 300
EERDTPKLYC GADGDWLVPL GRCICSTGYE EIEGSCHACR PGFYKAFAGN TKCSKCPPHS
310 320 330 340 350 360
LTYMEATSVC QCEKGYFRAE KDPPSMACTR PPSAPRNVVF NINETALILE WSPPSDTGGR
370 380 390 400 410 420
KDLTYSVICK KCGLDTSQCE DCGGGLRFIP RHTGLINNSV IVLDFVSHVN YTFEIEAMNG
430 440 450 460 470 480
VSELSFSPKP FTAITVTTDQ DAPSLIGVVR KDWASQNSIA LSWQAPAFSN GAILDYEIKY
490 500 510 520 530 540
YEKEHEQLTY SSTRSKAPSV IITGLKPATK YVFHIRVRTA TGYSGYSQKF EFETGDETSD
550 560 570 580 590 600
MAAEQGQILV IATAAVGGFT LLVILTLFFL ITGRCQWYIK AKMKSEEKRR NHLQNGHLRF
610 620 630 640 650 660
PGIKTYIDPD TYEDPSLAVH EFAKEIDPSR IRIERVIGAG EFGEVCSGRL KTPGKREIPV
670 680 690 700 710 720
AIKTLKGGHM DRQRRDFLRE ASIMGQFDHP NIIRLEGVVT KRSFPAIGVE AFCPSFLRAG
730 740 750 760 770 780
FLNSIQAPHP VPGGGSLPPR IPAGRPVMIV VEYMENGSLD SFLRKHDGHF TVIQLVGMLR
790 800 810 820 830 840
GIASGMKYLS DMGYVHRDLA ARNILVNSNL VCKVSDFGLS RVLEDDPEAA YTTTGGKIPI
850 860 870 880 890 900
RWTAPEAIAY RKFSSASDAW SYGIVMWEVM SYGERPYWEM SNQDVILSIE EGYRLPAPMG
910 920 930 940 950 960
CPASLHQLML HCWQKERNHR PKFTDIVSFL DKLIRNPSAL HTLVEDILVM PESPGEVPEY
970 980 990 1000 1010 1020
PLFVTVGDWL DSIKMGQYKN NFVAAGFTTF DLISRMSIDD IRRIGVILIG HQRRIVSSIQ
1030
TLRLHMMHIQ EKGFHV