ID A0A8C7E3L3_NAJNA Unreviewed; 1071 AA.
AC A0A8C7E3L3;
DT 19-JAN-2022, integrated into UniProtKB/TrEMBL.
DT 19-JAN-2022, sequence version 1.
DT 28-JAN-2026, entry version 20.
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:ENSNNAP00000021149.1};
OS Naja naja (Indian cobra).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC Serpentes; Colubroidea; Elapidae; Elapinae; Naja.
OX NCBI_TaxID=35670 {ECO:0000313|Ensembl:ENSNNAP00000021149.1, ECO:0000313|Proteomes:UP000694559};
RN [1] {ECO:0000313|Ensembl:ENSNNAP00000021149.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (AUG-2025) to UniProtKB.
RN [2] {ECO:0000313|Ensembl:ENSNNAP00000021149.1}
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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR AlphaFoldDB; A0A8C7E3L3; -.
DR Ensembl; ENSNNAT00000022176.1; ENSNNAP00000021149.1; ENSNNAG00000010974.1.
DR GeneTree; ENSGT00940000156021; -.
DR OMA; PGLILCQ; -.
DR OrthoDB; 9936425at2759; -.
DR Proteomes; UP000694559; Unplaced.
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:0042475; P:odontogenesis of dentin-containing tooth; 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 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: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; 1.
DR Pfam; PF13895; Ig_2; 1.
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; 3.
DR SMART; SM00408; IGc2; 3.
DR SMART; SM00219; TyrKc; 1.
DR SUPFAM; SSF48726; Immunoglobulin; 2.
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 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:UP000694559};
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 7..28
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 511..535
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 209..304
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 579..938
FT /note="Protein kinase"
FT /evidence="ECO:0000259|PROSITE:PS50011"
FT REGION 1001..1047
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 1023..1041
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 802
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-1"
FT BINDING 558
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 585..593
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-51"
FT BINDING 586..593
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 613
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2,
FT ECO:0000256|PROSITE-ProRule:PRU10141"
FT BINDING 661..667
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 806
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 807
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 820
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT SITE 946
FT /note="Important for interaction with phosphotyrosine-
FT binding proteins"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-4"
SQ SEQUENCE 1071 AA; 121739 MW; 47F52A9CC79BD0FD CRC64;
AGDPITPFLL FNFLTFCLVD FLLLPTILPN EEQMVVQLNG PFTLKCSGDS EVSWQHPIPE
GNHSITIRNE ENNSGLFMTV LEVANASASL TGLYICYYNH SQEEDGEVEG KEIYIFVPDT
AVPFVPTSPE DLFIVASEED NSSIIPCRTT DPNTQVTLMN REGKILYASY DNRLGFIGNF
SLGSYICKTT VKAVEFESGE FFIYVYKAPS YLHVDIESPK TVYKTGETIT VTCVVLDNEV
VNLEWNYPGK VKNKGIITLD DIKVPTQKLI YNLTIPDASV KDSGDYECAV RHVTKDFKKM
ERIAIYVHDK GFIHLEPHFK PTEAVNLHEV KNFVIFADAY PEPKFFWLKD NVTLMENLTE
IVTSSKQIQE TRYQSVLKLI RAKEEDSGYY TLVAQNEDEI QRYTFSLLIQ VPALIRDLVD
NHHEGTPLPD VEWLVCKDIT KCNNDTAWTL LTNNISDVTV ETRLDERNMV ASQVTFQKVE
EIMAVRCMAK NDLRTVTREL KLVAPTLRSE LTVAAAVLVL LVIVIIALIV LVIIWKQKPR
YEIRWRVIES ISPDGHEYIY VDPMQLPYDS RWEFPRDGLV LGRILGSGAF GKVVEGTAYG
LSRSQPVMKV AVKMLKPTAR SSEKQALMSE LKIMTHLGPH LNIVNLLGAC TKSGPIYIIT
EYCFYGDLVN YLHKNRDNFL SRHPEKTKMD LDIFGINSAD ESTRSYVILS FENNGEYMDM
KQAEATQYVP MLERKDRSKY SDIQRSLYDR PASYKKKSIL DGKNLLSDDN SEGLSLLDLL
SFTYQVARGM EFLASKNCVH RDLAARNVLL AQGKIVKICD FGLARDIMHD SNYVSKGSTF
LPVKWMAPES IFDNLYTTLS DVWSYGILLW EIFSLGGTPY PGMMVDSTFY NKIKSGYRMT
KPDHATSEVY DIMVKCWNSE PEKRPSFYHL SEIVESLLPG EYKKSYDRIH LDFLKSDHPA
VTRMRVDCDN PYIGVTYKNE DKLKDRESGF DEQRLSADSG YIIPLPDIDP VSEDELGKRN
RHSSQTSEES AIETGSSSST FVKREDETID DMDIIDDIGM DSSELVEDSF L
//
