ID U3I744_ANAPP Unreviewed; 1103 AA.
AC U3I744;
DT 13-NOV-2013, integrated into UniProtKB/TrEMBL.
DT 05-JUN-2019, sequence version 2.
DT 28-JAN-2026, entry version 87.
DE RecName: Full=Platelet-derived growth factor receptor alpha {ECO:0000256|ARBA:ARBA00016938, ECO:0000256|PIRNR:PIRNR500950};
DE Short=PDGF-R-alpha {ECO:0000256|PIRNR:PIRNR500950};
DE Short=PDGFR-alpha {ECO:0000256|PIRNR:PIRNR500950};
DE EC=2.7.10.1 {ECO:0000256|ARBA:ARBA00011902, ECO:0000256|PIRNR:PIRNR500950};
DE AltName: Full=Alpha platelet-derived growth factor receptor {ECO:0000256|ARBA:ARBA00030503, ECO:0000256|PIRNR:PIRNR500950};
DE AltName: Full=Alpha-type platelet-derived growth factor receptor {ECO:0000256|ARBA:ARBA00029782, ECO:0000256|PIRNR:PIRNR500950};
GN Name=PDGFRA {ECO:0000313|Ensembl:ENSAPLP00000003065.2};
OS Anas platyrhynchos platyrhynchos (Northern mallard).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC Coelurosauria; Aves; Neognathae; Galloanserae; Anseriformes; Anatidae;
OC Anatinae; Anas.
OX NCBI_TaxID=8840 {ECO:0000313|Ensembl:ENSAPLP00000003065.2, ECO:0000313|Proteomes:UP000016666};
RN [1] {ECO:0000313|Ensembl:ENSAPLP00000003065.2, ECO:0000313|Proteomes:UP000016666}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Hou Z.-C., Zhou Z.-K., Zhu F., Hou S.-S.;
RT "A new Pekin duck reference genome.";
RL Submitted (OCT-2017) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSAPLP00000003065.2}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (AUG-2025) to UniProtKB.
RN [3] {ECO:0000313|Ensembl:ENSAPLP00000003065.2}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2025) to UniProtKB.
CC -!- FUNCTION: Tyrosine-protein kinase that acts as a cell-surface receptor
CC for PDGFA, PDGFB and PDGFC and plays an essential role in the
CC regulation of embryonic development, cell proliferation, survival and
CC chemotaxis. Depending on the context, promotes or inhibits cell
CC proliferation and cell migration. Plays an important role in the
CC differentiation of bone marrow-derived mesenchymal stem cells. Required
CC for normal skeleton development. {ECO:0000256|PIRNR:PIRNR500950}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-tyrosyl-[protein] + ATP = O-phospho-L-tyrosyl-[protein] +
CC ADP + H(+); Xref=Rhea:RHEA:10596, Rhea:RHEA-COMP:10136, Rhea:RHEA-
CC COMP:20101, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:46858,
CC ChEBI:CHEBI:61978, ChEBI:CHEBI:456216; EC=2.7.10.1;
CC Evidence={ECO:0000256|ARBA:ARBA00051243};
CC -!- ACTIVITY REGULATION: Present in an inactive conformation in the absence
CC of bound ligand. Binding of PDGFA and/or PDGFB leads to dimerization
CC and activation by autophosphorylation on tyrosine residues.
CC {ECO:0000256|PIRNR:PIRNR500950}.
CC -!- SUBUNIT: Interacts with homodimeric PDGFA, PDGFB and PDGFC, and with
CC heterodimers formed by PDGFA and PDGFB. Monomer in the absence of bound
CC ligand. {ECO:0000256|PIRNR:PIRNR500950}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|ARBA:ARBA00004251,
CC ECO:0000256|PIRNR:PIRNR500950}; Single-pass type I membrane protein
CC {ECO:0000256|ARBA:ARBA00004251, ECO:0000256|PIRNR:PIRNR500950}. Cell
CC projection, cilium {ECO:0000256|ARBA:ARBA00004138}. Golgi apparatus
CC {ECO:0000256|ARBA:ARBA00004555}. Membrane
CC {ECO:0000256|RuleBase:RU000311}; Single-pass type I membrane protein
CC {ECO:0000256|RuleBase:RU000311}.
CC -!- SIMILARITY: Belongs to the protein kinase superfamily. Tyr protein
CC kinase family. CSF-1/PDGF receptor subfamily.
CC {ECO:0000256|PIRNR:PIRNR500950, ECO:0000256|RuleBase:RU000311}.
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DR AlphaFoldDB; U3I744; -.
DR STRING; 8840.ENSAPLP00000003065; -.
DR Ensembl; ENSAPLT00000003660.2; ENSAPLP00000003065.2; ENSAPLG00000003497.2.
DR GeneTree; ENSGT00940000156021; -.
DR HOGENOM; CLU_000288_49_0_1; -.
DR OMA; PGLILCQ; -.
DR Proteomes; UP000016666; Chromosome 4.
DR GO; GO:0030054; C:cell junction; IEA:Ensembl.
DR GO; GO:0005929; C:cilium; IEA:UniProtKB-SubCell.
DR GO; GO:0005829; C:cytosol; IEA:Ensembl.
DR GO; GO:0009897; C:external side of plasma membrane; IEA:Ensembl.
DR GO; GO:0005794; C:Golgi apparatus; IEA:UniProtKB-SubCell.
DR GO; GO:0005902; C:microvillus; IEA:Ensembl.
DR GO; GO:0016604; C:nuclear body; IEA:Ensembl.
DR GO; GO:1990270; C:platelet-derived growth factor receptor-ligand complex; IEA:Ensembl.
DR GO; GO:0043235; C:receptor complex; IEA:TreeGrafter.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0160185; F:phospholipase C activator activity; IEA:Ensembl.
DR GO; GO:0005018; F:platelet-derived growth factor alpha-receptor activity; IEA:Ensembl.
DR GO; GO:0048407; F:platelet-derived growth factor binding; IEA:Ensembl.
DR GO; GO:0005161; F:platelet-derived growth factor receptor binding; IEA:Ensembl.
DR GO; GO:0042803; F:protein homodimerization activity; IEA:Ensembl.
DR GO; GO:0044877; F:protein-containing complex binding; IEA:Ensembl.
DR GO; GO:0038085; F:vascular endothelial growth factor binding; IEA:Ensembl.
DR GO; GO:0005021; F:vascular endothelial growth factor receptor activity; IEA:Ensembl.
DR GO; GO:0030325; P:adrenal gland development; IEA:Ensembl.
DR GO; GO:0055003; P:cardiac myofibril assembly; IEA:Ensembl.
DR GO; GO:0060326; P:cell chemotaxis; IEA:Ensembl.
DR GO; GO:0071230; P:cellular response to amino acid stimulus; IEA:Ensembl.
DR GO; GO:0034614; P:cellular response to reactive oxygen species; IEA:Ensembl.
DR GO; GO:0048701; P:embryonic cranial skeleton morphogenesis; IEA:Ensembl.
DR GO; GO:0048557; P:embryonic digestive tract morphogenesis; IEA:Ensembl.
DR GO; GO:0008210; P:estrogen metabolic process; IEA:Ensembl.
DR GO; GO:0030198; P:extracellular matrix organization; IEA:Ensembl.
DR GO; GO:0060325; P:face morphogenesis; IEA:Ensembl.
DR GO; GO:0002244; P:hematopoietic progenitor cell differentiation; IEA:Ensembl.
DR GO; GO:0033327; P:Leydig cell differentiation; IEA:Ensembl.
DR GO; GO:0030324; P:lung development; IEA:Ensembl.
DR GO; GO:0001553; P:luteinization; IEA:Ensembl.
DR GO; GO:0030539; P:male genitalia development; IEA:Ensembl.
DR GO; GO:0072277; P:metanephric glomerular capillary formation; IEA:Ensembl.
DR GO; GO:0010544; P:negative regulation of platelet activation; IEA:Ensembl.
DR GO; GO:0070527; P:platelet aggregation; IEA:Ensembl.
DR GO; GO:0050850; P:positive regulation of calcium-mediated signaling; IEA:Ensembl.
DR GO; GO:0030335; P:positive regulation of cell migration; IEA:Ensembl.
DR GO; GO:0038091; P:positive regulation of cell proliferation by VEGF-activated platelet derived growth factor receptor signaling pathway; IEA:Ensembl.
DR GO; GO:0050921; P:positive regulation of chemotaxis; IEA:Ensembl.
DR GO; GO:0070374; P:positive regulation of ERK1 and ERK2 cascade; IEA:Ensembl.
DR GO; GO:0048146; P:positive regulation of fibroblast proliferation; IEA:Ensembl.
DR GO; GO:2000739; P:regulation of mesenchymal stem cell differentiation; IEA:Ensembl.
DR GO; GO:0061298; P:retina vasculature development in camera-type eye; IEA:Ensembl.
DR GO; GO:0060021; P:roof of mouth development; IEA:Ensembl.
DR GO; GO:0023019; P:signal transduction involved in regulation of gene expression; IEA:Ensembl.
DR GO; GO:0050872; P:white fat cell differentiation; IEA:Ensembl.
DR CDD; cd05859; Ig4_PDGFR; 1.
DR CDD; cd05105; PTKc_PDGFR_alpha; 1.
DR FunFam; 2.60.40.10:FF:000720; Platelet-derived growth factor receptor alpha; 1.
DR FunFam; 2.60.40.10:FF:000725; Platelet-derived growth factor receptor alpha; 1.
DR FunFam; 2.60.40.10:FF:000776; Platelet-derived growth factor receptor alpha; 1.
DR FunFam; 2.60.40.10:FF:000832; Platelet-derived growth factor receptor alpha; 1.
DR FunFam; 3.30.200.20:FF:000025; Platelet-derived growth factor receptor alpha; 1.
DR FunFam; 2.60.40.10:FF:000223; Platelet-derived growth factor receptor beta; 1.
DR FunFam; 1.10.510.10:FF:001735; T0011027 isoform 1; 1.
DR Gene3D; 2.60.40.10; Immunoglobulins; 5.
DR Gene3D; 3.30.200.20; Phosphorylase Kinase, domain 1; 1.
DR Gene3D; 1.10.510.10; Transferase(Phosphotransferase) domain 1; 1.
DR InterPro; IPR007110; Ig-like_dom.
DR InterPro; IPR036179; Ig-like_dom_sf.
DR InterPro; IPR013783; Ig-like_fold.
DR InterPro; IPR013098; Ig_I-set.
DR InterPro; IPR003599; Ig_sub.
DR InterPro; IPR003598; Ig_sub2.
DR InterPro; IPR011009; Kinase-like_dom_sf.
DR InterPro; IPR027290; PDGFRA.
DR InterPro; IPR000719; Prot_kinase_dom.
DR InterPro; IPR017441; Protein_kinase_ATP_BS.
DR InterPro; IPR050122; RTK.
DR InterPro; IPR001245; Ser-Thr/Tyr_kinase_cat_dom.
DR InterPro; IPR008266; Tyr_kinase_AS.
DR InterPro; IPR020635; Tyr_kinase_cat_dom.
DR InterPro; IPR001824; Tyr_kinase_rcpt_3_CS.
DR PANTHER; PTHR24416:SF52; PLATELET-DERIVED GROWTH FACTOR RECEPTOR ALPHA; 1.
DR PANTHER; PTHR24416; TYROSINE-PROTEIN KINASE RECEPTOR; 1.
DR Pfam; PF07679; I-set; 2.
DR Pfam; PF25305; Ig_PDGFR_d4; 1.
DR Pfam; PF07714; PK_Tyr_Ser-Thr; 1.
DR PIRSF; PIRSF500950; Alpha-PDGF_receptor; 1.
DR PIRSF; PIRSF000615; TyrPK_CSF1-R; 1.
DR PRINTS; PR01832; VEGFRECEPTOR.
DR SMART; SM00409; IG; 4.
DR SMART; SM00408; IGc2; 3.
DR SMART; SM00219; TyrKc; 1.
DR SUPFAM; SSF48726; Immunoglobulin; 4.
DR SUPFAM; SSF56112; Protein kinase-like (PK-like); 1.
DR PROSITE; PS50835; IG_LIKE; 1.
DR PROSITE; PS00107; PROTEIN_KINASE_ATP; 1.
DR PROSITE; PS50011; PROTEIN_KINASE_DOM; 1.
DR PROSITE; PS00109; PROTEIN_KINASE_TYR; 1.
DR PROSITE; PS00240; RECEPTOR_TYR_KIN_III; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|PIRNR:PIRNR500950};
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475,
KW ECO:0000256|PIRNR:PIRNR500950};
KW Cell projection {ECO:0000256|ARBA:ARBA00023273};
KW Chemotaxis {ECO:0000256|ARBA:ARBA00022500, ECO:0000256|PIRNR:PIRNR500950};
KW Developmental protein {ECO:0000256|ARBA:ARBA00022473,
KW ECO:0000256|PIRNR:PIRNR500950};
KW Disulfide bond {ECO:0000256|ARBA:ARBA00023157,
KW ECO:0000256|PIRSR:PIRSR500950-52};
KW Glycoprotein {ECO:0000256|ARBA:ARBA00023180};
KW Golgi apparatus {ECO:0000256|ARBA:ARBA00023034};
KW Immunoglobulin domain {ECO:0000256|ARBA:ARBA00023319,
KW ECO:0000256|RuleBase:RU000311};
KW Kinase {ECO:0000256|ARBA:ARBA00022777, ECO:0000256|PIRNR:PIRNR500950};
KW Magnesium {ECO:0000256|PIRSR:PIRSR000615-3};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|PIRNR:PIRNR500950};
KW Metal-binding {ECO:0000256|PIRSR:PIRSR000615-3};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|PIRNR:PIRNR500950};
KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553};
KW Receptor {ECO:0000256|ARBA:ARBA00023170, ECO:0000256|PIRNR:PIRNR500950};
KW Reference proteome {ECO:0000313|Proteomes:UP000016666};
KW Repeat {ECO:0000256|ARBA:ARBA00022737};
KW Signal {ECO:0000256|ARBA:ARBA00022729};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR500950};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW ECO:0000256|RuleBase:RU000311};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|SAM:Phobius};
KW Tyrosine-protein kinase {ECO:0000256|ARBA:ARBA00023137,
KW ECO:0000256|PIRNR:PIRNR500950};
KW Ubl conjugation {ECO:0000256|ARBA:ARBA00022843}.
FT TRANSMEM 541..565
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 231..322
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 609..970
FT /note="Protein kinase"
FT /evidence="ECO:0000259|PROSITE:PS50011"
FT REGION 1033..1075
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 1055..1073
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 834
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-1"
FT BINDING 588
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 615..623
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-51"
FT BINDING 616..623
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 643
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2,
FT ECO:0000256|PROSITE-ProRule:PRU10141"
FT BINDING 691..697
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 838
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 839
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 852
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT SITE 978
FT /note="Important for interaction with phosphotyrosine-
FT binding proteins"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-4"
FT DISULFID 65..115
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 165..205
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 251..306
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 451..517
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
SQ SEQUENCE 1103 AA; 124293 MW; 688A5EEF1DF1E7EC CRC64;
MKPLLVGSQR LALSVAMGTS PRTFLILGCF LTGPLLTFCQ LPLPTIVPNR NEMVVQLNSN
FTLKCSGDSE VSWQYPVTEG SHRIDIRHEE NNSGLFVTVL EVGNASAAHT GLYVCYYNHT
QVEDGEVEGR NIYIYVPDPD VPFVPSIPED QFILVEEGDS TTIPCRTSDP NAQVTLINSL
DKAVYAAYDN KRGFIGNFPA GSYTCKTMVK GMEFKSDVFL IYILRATSQL PVEIEALKTV
YKTGETIVVT CVVFDNEVVN LQWNYPGKVK EKGVIKLDDI KVPSQKLVYT LTIPEASVKD
TGDYECTARH ATKEVKENKK VVITVHDKGF IHLEPQFSPL EAVNLHEVKN FVVDVQAYPA
PKMYWLKDNV TLIENLTEIV TSSSRVQETR FQSILKLIRA KEEDSGYYTL VAENEDEIKR
YTFSLLIQVP ALILDLVDDH HGSAGGQTVR CLAEGTPLPD VEWLVCKDIK KCSNDTSWTL
LTNNISDIHM EAHLDEKNMV ESQVTFQKVE ETLAVRCVAR NDLGAVTREL KLVAPTLRSE
LTVAAAVLVL LVIVIISLIV LVIIWKQKPR YEIRWRVIES ISPDGHEYIY VDPMQLPYDS
RWEFPRDGLV LGRILGSGAF GKVVEGTAYG LSRSQPVMKV AVKMLKPTAR SSEKQALMSE
LKIMTHLGPH LNIVNLLGAC TKSGPIYIIT EYCFYGDLVN YLHKNRDNFL SRHPEKPKKD
LDIFGMNPAD ESTRSYVILS FENTGEYMDM KQADTTQYVP MLERKEGSKY SDIQRSVYDR
PASYKKKSLS ESEVKNLLSD DSSEGLSLLD LLSFTYQVAR GMEFLASKNC VHRDLAARNV
LLAQGKIVKI CDFGLARDIM HDSNYVSKGS TFLPVKWMAP ESIFDNLYTT LSDVWSYGIL
LWEIFSLGGT PYPGMMVDST FYNKIKSGYR MAKPDHATNE VYEIMVKCWN SEPEKRPSFY
HLSEIVESLL PGEYKKSYEK IHLDFLKSDH PAVTRMRGDC DNAYIGVTYK NEDKLKDRES
GFDEQRLSAD SGYIIPLPDI DPVSEDELGK RNRHSSQTSE ESAIETGSSS STFIKREDET
IEDIDMMDDI GIDSSDLVED SFL
//
