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Q1KL86

- EPHA2_MACFA

UniProt

Q1KL86 - EPHA2_MACFA

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Protein
Ephrin type-A receptor 2
Gene
EPHA2
Organism
Macaca fascicularis (Crab-eating macaque) (Cynomolgus monkey)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at transcript leveli

Functioni

Receptor tyrosine kinase which binds promiscuously membrane-bound ephrin-A 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. Activated by the ligand ephrin-A1/EFNA1 regulates migration, integrin-mediated adhesion, proliferation and differentiation of cells. Regulates cell adhesion and differentiation through DSG1/desmoglein-1 and inhibition of the ERK1/ERK2 signaling pathway. May also participate in UV radiation-induced apoptosis and have a ligand-independent stimulatory effect on chemotactic cell migration. During development, may function in distinctive aspects of pattern formation and subsequently in development of several fetal tissues. Involved for instance in angiogenesis, in early hindbrain development and epithelial proliferation and branching morphogenesis during mammary gland development. Engaged by the ligand ephrin-A5/EFNA5 may regulate lens fiber cells shape and interactions and be important for lens transparency development and maintenance. With ephrin-A2/EFNA2 may play a role in bone remodeling through regulation of osteoclastogenesis and osteoblastogenesis By similarity.

Catalytic activityi

ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei646 – 6461ATP By similarity
Active sitei739 – 7391Proton acceptor By similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi619 – 6279ATP By similarity

GO - Molecular functioni

  1. ATP binding Source: UniProtKB-KW
  2. ephrin receptor activity Source: InterPro
  3. transmembrane receptor protein tyrosine kinase activity Source: UniProtKB

GO - Biological processi

  1. activation of Rac GTPase activity Source: UniProtKB
  2. angiogenesis Source: UniProtKB-KW
  3. apoptotic process Source: UniProtKB-KW
  4. bone remodeling Source: UniProtKB
  5. branching involved in mammary gland duct morphogenesis Source: UniProtKB
  6. cell adhesion Source: UniProtKB-KW
  7. cell chemotaxis Source: UniProtKB
  8. cell migration Source: UniProtKB
  9. ephrin receptor signaling pathway Source: UniProtKB
  10. lens fiber cell morphogenesis Source: UniProtKB
  11. mammary gland epithelial cell proliferation Source: UniProtKB
  12. negative regulation of protein kinase B signaling Source: UniProtKB
  13. osteoblast differentiation Source: UniProtKB
  14. osteoclast differentiation Source: UniProtKB
  15. peptidyl-tyrosine phosphorylation Source: GOC
  16. positive regulation of establishment of protein localization to plasma membrane Source: UniProtKB
  17. protein kinase B signaling Source: UniProtKB
  18. regulation of angiogenesis Source: UniProtKB
  19. regulation of cell adhesion mediated by integrin Source: UniProtKB
  20. regulation of lamellipodium assembly Source: UniProtKB
  21. response to growth factor Source: UniProtKB
Complete GO annotation...

Keywords - Molecular functioni

Kinase, Receptor, Transferase, Tyrosine-protein kinase

Keywords - Biological processi

Angiogenesis, Apoptosis, Cell adhesion, Differentiation

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Ephrin type-A receptor 2 (EC:2.7.10.1)
Gene namesi
Name:EPHA2
OrganismiMacaca fascicularis (Crab-eating macaque) (Cynomolgus monkey)
Taxonomic identifieri9541 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniCercopithecidaeCercopithecinaeMacaca

Subcellular locationi

Cell membrane; Single-pass type I membrane protein By similarity. Cell projectionruffle membrane; Single-pass type I membrane protein By similarity. Cell projectionlamellipodium membrane; Single-pass type I membrane protein By similarity. Cell junctionfocal adhesion By similarity
Note: Present at regions of cell-cell contacts but also at the leading edge of migrating cells By similarity.

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini25 – 537513Extracellular Reviewed prediction
Add
BLAST
Transmembranei538 – 55821Helical; Reviewed prediction
Add
BLAST
Topological domaini559 – 976418Cytoplasmic Reviewed prediction
Add
BLAST

GO - Cellular componenti

  1. focal adhesion Source: UniProtKB
  2. integral component of plasma membrane Source: UniProtKB
  3. lamellipodium membrane Source: UniProtKB-SubCell
  4. leading edge membrane Source: UniProtKB
  5. ruffle membrane Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cell junction, Cell membrane, Cell projection, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 2323 Reviewed prediction
Add
BLAST
Chaini24 – 976953Ephrin type-A receptor 2
PRO_0000260316Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Disulfide bondi70 ↔ 188 By similarity
Disulfide bondi105 ↔ 115 By similarity
Modified residuei153 – 1531Phosphoserine By similarity
Modified residuei373 – 3731Phosphoserine By similarity
Glycosylationi407 – 4071N-linked (GlcNAc...) Reviewed prediction
Glycosylationi435 – 4351N-linked (GlcNAc...) Reviewed prediction
Modified residuei570 – 5701Phosphoserine By similarity
Modified residuei575 – 5751Phosphotyrosine By similarity
Modified residuei579 – 5791Phosphoserine By similarity
Modified residuei587 – 5871Phosphothreonine By similarity
Modified residuei588 – 5881Phosphotyrosine; by autocatalysis By similarity
Modified residuei593 – 5931Phosphothreonine By similarity
Modified residuei594 – 5941Phosphotyrosine; by autocatalysis By similarity
Modified residuei628 – 6281Phosphotyrosine By similarity
Modified residuei647 – 6471Phosphothreonine By similarity
Modified residuei735 – 7351Phosphotyrosine; by autocatalysis By similarity
Modified residuei771 – 7711Phosphothreonine By similarity
Modified residuei772 – 7721Phosphotyrosine; by autocatalysis By similarity
Modified residuei790 – 7901Phosphoserine By similarity
Modified residuei791 – 7911Phosphotyrosine By similarity
Modified residuei869 – 8691Phosphoserine By similarity
Modified residuei880 – 8801Phosphoserine By similarity
Modified residuei892 – 8921Phosphoserine By similarity
Modified residuei897 – 8971Phosphoserine By similarity
Modified residuei898 – 8981Phosphothreonine By similarity
Modified residuei899 – 8991Phosphoserine By similarity
Modified residuei901 – 9011Phosphoserine By similarity
Modified residuei910 – 9101Phosphoserine By similarity
Modified residuei921 – 9211Phosphotyrosine; by autocatalysis Reviewed prediction
Modified residuei930 – 9301Phosphotyrosine By similarity
Modified residuei960 – 9601Phosphotyrosine By similarity

Post-translational modificationi

Autophosphorylates. Phosphorylated on tyrosine upon binding and activation by EFNA1. Phosphorylated residues Tyr-588 and Tyr-594 are required for binding VAV2 and VAV3 while phosphorylated residues Tyr-735 and Tyr-930 are required for binding PI3-kinase p85 subunit (PIK3R1, PIK3R2 or PIK3R3). These phosphorylated residues are critical for recruitment of VAV2 and VAV3 and PI3-kinase p85 subunit which transduce downstream signaling to activate RAC1 GTPase and cell migration. Dephosphorylation of Tyr-930 by PTPRF prevents the interaction of EPHA2 with NCK1. Phosphorylated at Ser-897 by PKB; serum-induced phosphorylation which targets EPHA2 to the cell leading edge and stimulates cell migration. Phosphorylation by PKB is inhibited by EFNA1-activated EPHA2 which regulates PKB activity via a reciprocal regulatory loop. Dephosphorylated by ACP1 By similarity.
Ubiquitinated by CHIP/STUB1. Ubiquitination is regulated by the HSP90 chaperone and regulates the receptor stability and activity through proteasomal degradation. ANKS1A prevents ubiquitination and degradation By similarity.

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein, Ubl conjugation

Proteomic databases

PRIDEiQ1KL86.

Interactioni

Subunit structurei

Homodimer. Interacts with SLA. Interacts (phosphorylated form) with VAV2, VAV3 and PI3-kinase p85 subunit (PIK3R1, PIK3R2 or PIK3R3); critical for the EFNA1-induced activation of RAC1 which stimulates cell migration. Interacts with INPPL1; regulates activated EPHA2 endocytosis and degradation. Interacts (inactivated form) with PTK2/FAK1 and interacts (EFNA1 ligand-activated form) with PTPN11; regulates integrin-mediated adhesion. Interacts with ARHGEF16, DOCK4 and ELMO2; mediates ligand-independent activation of RAC1 which stimulates cell migration. Interacts with CLDN4; phosphorylates CLDN4 and may regulate tight junctions. Interacts with ACP1. Interacts with ANKS1A. Interacts with CEMIP. Interacts with NCK1; may regulate EPHA2 activity in cell migration and adhesion By similarity.

Structurei

3D structure databases

ProteinModelPortaliQ1KL86.
SMRiQ1KL86. Positions 27-201, 602-883, 904-976.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini28 – 206179Eph LBD
Add
BLAST
Domaini328 – 432105Fibronectin type-III 1
Add
BLAST
Domaini438 – 52992Fibronectin type-III 2
Add
BLAST
Domaini613 – 875263Protein kinase
Add
BLAST
Domaini904 – 96865SAM
Add
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 206206Mediates interaction with CLDN4 By similarity
Add
BLAST
Regioni606 – 906301Mediates interaction with ARHGEF16 By similarity
Add
BLAST
Regioni886 – 97691Negatively regulates interaction with ARHGEF16 By similarity
Add
BLAST

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi974 – 9763PDZ-binding Reviewed prediction

Compositional bias

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Compositional biasi188 – 325138Cys-rich
Add
BLAST

Sequence similaritiesi

Keywords - Domaini

Repeat, Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

HOVERGENiHBG062180.

Family and domain databases

Gene3Di1.10.150.50. 1 hit.
2.60.120.260. 1 hit.
2.60.40.10. 2 hits.
InterProiIPR027936. Eph_TM.
IPR001090. Ephrin_rcpt_lig-bd_dom.
IPR003961. Fibronectin_type3.
IPR008979. Galactose-bd-like.
IPR009030. Growth_fac_rcpt_N_dom.
IPR013783. Ig-like_fold.
IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_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]
PfamiPF14575. EphA2_TM. 1 hit.
PF01404. Ephrin_lbd. 1 hit.
PF00041. fn3. 2 hits.
PF07714. Pkinase_Tyr. 1 hit.
PF00536. SAM_1. 1 hit.
[Graphical view]
PIRSFiPIRSF000666. TyrPK_ephrin_receptor. 1 hit.
PRINTSiPR00109. TYRKINASE.
SMARTiSM00615. EPH_lbd. 1 hit.
SM00060. FN3. 2 hits.
SM00454. SAM. 1 hit.
SM00219. TyrKc. 1 hit.
[Graphical view]
SUPFAMiSSF47769. SSF47769. 1 hit.
SSF49265. SSF49265. 1 hit.
SSF49785. SSF49785. 1 hit.
SSF56112. SSF56112. 1 hit.
SSF57184. SSF57184. 2 hits.
PROSITEiPS01186. EGF_2. 1 hit.
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]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q1KL86-1 [UniParc]FASTAAdd to Basket

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MELWAARACF VLLWGCALAP ATAAQGKEVV LLDFAAAGGE LGWLTHPYGK    50
GWDLMQNIMN DMPIYMYSVC NVMSGDQDNW LRTNWVYRGE AERIFIELKF 100
TVRDCNSFPG GASSCKETFN LYYAESDLDY GTNFQKRLFT KIDTIAPDEI 150
TVSSDFEARH VKLNVEERSV GPLTRKGFYL AFQDIGACVA LLSVRVYYKK 200
CPELLQSLAR FPETIAGSDA PSLATVAGTC VDHAVVPPGG EEPRMHCAVD 250
GEWLVPIGQC LCQAGYEKVE DACQACSPGF FKFEVSESPC LECPEHTLPS 300
PEGATSCECE EGFFRAPQDP MSMPCTRPPS APHYLTAVGM GAKVELRWTP 350
PQDSGGREDI VYSVTCEQCW PESGECGPCE SSVRYSEPPH GLTRTSVTVS 400
DLEPHMNYTF TVEARNGVSG LVTSRSFRTA SVSINQTEPP KVRLEGRSTT 450
SLSVSWSIPP PQQSRVWKYE VTYRKKGDSN SYNVRRTEGF SVTLDDLAPD 500
TTYLVQVQAL TQEGQGAGSK VHEFQTLSPE GSGSLAVIGG VAVCVVLLLL 550
LAGAGFFIHR RRKNLRARQS PEDVYFSKSE QLKPLKTYVD PHTYEDPNQA 600
VLKFTTEIHP SCVTRQKVIG AGEFGEVYKG TLKTSSGKKE VPVAIKTLKA 650
GYTEKQRVDF LGEAGIMGQF SHHNIIRLEG VISKYKPMMI ITEFMENGAL 700
DKFLREKDGE FSVLQLVGML RGIAAGMKYL ANMNYVHRDL AARNILVNSN 750
LVCKVSDFGL SRVLEDDPEA TYTTSGGKIP IRWTAPEAIS YRKFTSASDV 800
WSFGIVMWEV MTYGERPYWE LSNHEVMKAI NDGFRLPTPM DCPSAIYQLM 850
MQCWQQERAR RPKFADIVSI LDKLIRAPDS LKTLADFDPR VSIRLPSTSG 900
SEGVPFRTVS EWLESIKMQQ YTEHFMAAGY TAIEKVVQMT NDDIKRIGVR 950
LPGHQKRIAY SLLGLKDQVN TVGIPI 976
Length:976
Mass (Da):108,506
Last modified:May 30, 2006 - v1
Checksum:i244DD74D78F14EFB
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
DQ478608 mRNA. Translation: ABE96827.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
DQ478608 mRNA. Translation: ABE96827.1 .

3D structure databases

ProteinModelPortali Q1KL86.
SMRi Q1KL86. Positions 27-201, 602-883, 904-976.
ModBasei Search...
MobiDBi Search...

Proteomic databases

PRIDEi Q1KL86.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Phylogenomic databases

HOVERGENi HBG062180.

Family and domain databases

Gene3Di 1.10.150.50. 1 hit.
2.60.120.260. 1 hit.
2.60.40.10. 2 hits.
InterProi IPR027936. Eph_TM.
IPR001090. Ephrin_rcpt_lig-bd_dom.
IPR003961. Fibronectin_type3.
IPR008979. Galactose-bd-like.
IPR009030. Growth_fac_rcpt_N_dom.
IPR013783. Ig-like_fold.
IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_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 ]
Pfami PF14575. EphA2_TM. 1 hit.
PF01404. Ephrin_lbd. 1 hit.
PF00041. fn3. 2 hits.
PF07714. Pkinase_Tyr. 1 hit.
PF00536. SAM_1. 1 hit.
[Graphical view ]
PIRSFi PIRSF000666. TyrPK_ephrin_receptor. 1 hit.
PRINTSi PR00109. TYRKINASE.
SMARTi SM00615. EPH_lbd. 1 hit.
SM00060. FN3. 2 hits.
SM00454. SAM. 1 hit.
SM00219. TyrKc. 1 hit.
[Graphical view ]
SUPFAMi SSF47769. SSF47769. 1 hit.
SSF49265. SSF49265. 1 hit.
SSF49785. SSF49785. 1 hit.
SSF56112. SSF56112. 1 hit.
SSF57184. SSF57184. 2 hits.
PROSITEi PS01186. EGF_2. 1 hit.
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 ]
ProtoNeti Search...

Publicationsi

  1. "Macaca fascicularis EPH receptor A2 (EPHA2)."
    Walsh W.D., Bruckheimer E.M.
    Submitted (APR-2006) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
    Tissue: Skin.

Entry informationi

Entry nameiEPHA2_MACFA
AccessioniPrimary (citable) accession number: Q1KL86
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 28, 2006
Last sequence update: May 30, 2006
Last modified: September 3, 2014
This is version 66 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi