ID A0A6P7WVN7_9AMPH Unreviewed; 1090 AA.
AC A0A6P7WVN7;
DT 02-DEC-2020, integrated into UniProtKB/TrEMBL.
DT 02-DEC-2020, sequence version 1.
DT 28-JAN-2026, entry version 25.
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|RefSeq:XP_030047251.1,
GN ECO:0000313|RefSeq:XP_030047252.1};
OS Microcaecilia unicolor.
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC Gymnophiona; Siphonopidae; Microcaecilia.
OX NCBI_TaxID=1415580 {ECO:0000313|Proteomes:UP000515156, ECO:0000313|RefSeq:XP_030047252.1};
RN [1] {ECO:0000313|RefSeq:XP_030047251.1, ECO:0000313|RefSeq:XP_030047252.1}
RP IDENTIFICATION.
RG RefSeq;
RL Submitted (APR-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 RefSeq; XP_030047251.1; XM_030191391.1.
DR RefSeq; XP_030047252.1; XM_030191392.1.
DR AlphaFoldDB; A0A6P7WVN7; -.
DR GeneID; 115461528; -.
DR KEGG; muo:115461528; -.
DR CTD; 5156; -.
DR OrthoDB; 9936425at2759; -.
DR Proteomes; UP000515156; Chromosome 2.
DR GO; GO:0005929; C:cilium; IEA:UniProtKB-SubCell.
DR GO; GO:0005794; C:Golgi apparatus; IEA:UniProtKB-SubCell.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
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:0005018; F:platelet-derived growth factor alpha-receptor activity; IEA:InterPro.
DR GO; GO:0048407; F:platelet-derived growth factor binding; IEA:TreeGrafter.
DR GO; GO:0006935; P:chemotaxis; IEA:UniProtKB-KW.
DR GO; GO:0048701; P:embryonic cranial skeleton morphogenesis; IEA:TreeGrafter.
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; 2.
DR Pfam; PF25305; Ig_PDGFR_d4; 1.
DR Pfam; PF07714; PK_Tyr_Ser-Thr; 1.
DR Pfam; PF21339; VEGFR-1-like_Ig-like; 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; 2.
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:UP000515156};
KW Repeat {ECO:0000256|ARBA:ARBA00022737};
KW Signal {ECO:0000256|ARBA:ARBA00022729, ECO:0000256|SAM:SignalP};
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 SIGNAL 1..22
FT /evidence="ECO:0000256|SAM:SignalP"
FT CHAIN 23..1090
FT /note="Platelet-derived growth factor receptor alpha"
FT /evidence="ECO:0000256|SAM:SignalP"
FT /id="PRO_5044652385"
FT TRANSMEM 528..552
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 215..309
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 417..520
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 596..957
FT /note="Protein kinase"
FT /evidence="ECO:0000259|PROSITE:PS50011"
FT REGION 768..788
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 1020..1067
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 1042..1060
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 821
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-1"
FT BINDING 575
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 602..610
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-51"
FT BINDING 603..610
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 630
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2,
FT ECO:0000256|PROSITE-ProRule:PRU10141"
FT BINDING 678..684
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 825
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 826
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 839
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT SITE 965
FT /note="Important for interaction with phosphotyrosine-
FT binding proteins"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-4"
FT DISULFID 50..101
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 151..192
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 238..293
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 438..504
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
SQ SEQUENCE 1090 AA; 122947 MW; DDD040007A084E48 CRC64;
MASSLKAVLV WECLLTIGPL LGLCQNAIPS LFPSDEEMVV QPHSSFTLRC TGESELSWQY
PEPDQDSPEL EIRREENNSG LFVSLLEVKN ALGALTGLYT CYHNHSQIED HDIEGKGIYV
YVPDPTVAFV PSSMLDHFIA TEENDLAIIP CRTTNPKAEV TLIKMEESKI VYNLYDSKQG
FLGRFPSGSY VCKTIINGEE FQTEPFIVHT WKATPEIPVN IEAPKTVFKA GENIIVKCVV
LDNEVVDLEW RYPGSTKGRG NIQVEETRMP SLKLEYTLTI ANASEKDTGE YECAARHATQ
DTKEIKKISI SVHEKGFIRL EPKFGMVESA NLHEVKRFTV DVQAYPAPKV FWLKDNVTLI
ENLTEIIATL IPTEETRYES GLKLIRAKEE DSGFYTIVAQ NGDEIKSYTF SLQIKVPALI
LDLVDDHHGS SGEQTVECLA KGMPVPALEW MVCKGIIKCN NESSWAPLTT NTSDISMDTR
LDEGNTVESQ VTFQKVEETL AIRCIAKNDL GTAARELKLV APMLRSELTV AAAVLVLLVI
VIISLIVLVI IWKQKPRYEI RWRVIESISP DGHEYIYVDP MQLPYDSRWE FPRDGLVLGR
ILGSGAFGKV VEGTAYGLSR SQPVMKVAVK MLKPTARSSE KQALMSELKI MTHLGPHLNI
VNLLGACTKS GPIYIITEYC FYGDLVNYLH KNRDNFLNRH PEKMKKDLDI FGMNPADEST
RSYVILSFEN NGDYMDMKQA DTTQYVPMLE RKEGSKYSDI QRSMYDRPAS YKKKSVSDPE
TKNLLSDDSS DGLSLLDLLS FTYQVARGME FLASKNCVHR DLAARNVLLA QGKIVKICDF
GLARDIMHDS NYVSKGSTFL PVKWMAPESI FDNLYTTLSD VWSYGILLWE IFSLGGTPYP
GMMVDSTFYN KIKSGYRMAK PDHATHEVYE LMVKCWNTEP EKRPSFYHLT EIVENLLPGE
YKKSYERIHS DFLKSDHPAV TRMRSECDNT YSGVTYKNDD KLKDRESGFD EQRLSADSGY
IIPLPDIDPV SDDESGKRNR HSSQTSDESA IETGSSSSTF IKREDETMED IEMMDDIGID
STDLVEDSFL
//
