ID A0A4W5KZ69_9TELE Unreviewed; 1120 AA.
AC A0A4W5KZ69;
DT 18-SEP-2019, integrated into UniProtKB/TrEMBL.
DT 18-SEP-2019, sequence version 1.
DT 28-JAN-2026, entry version 32.
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};
OS Hucho hucho (huchen).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Protacanthopterygii; Salmoniformes;
OC Salmonidae; Salmoninae; Hucho.
OX NCBI_TaxID=62062 {ECO:0000313|Ensembl:ENSHHUP00000015690.1, ECO:0000313|Proteomes:UP000314982};
RN [1] {ECO:0000313|Proteomes:UP000314982}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Macqueen D.J., Gundappa M.K.;
RT "Genome assembly of Danube salmon.";
RL Submitted (JUN-2018) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSHHUP00000015690.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (AUG-2025) to UniProtKB.
RN [3] {ECO:0000313|Ensembl:ENSHHUP00000015690.1}
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 -!- 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. Interaction with dimeric pdgfa, pdgfb and/or pdgfc leads to
CC receptor dimerization, where both pdgfra homodimers and heterodimers
CC with pdgfrb are observed. {ECO:0000256|ARBA:ARBA00064866}.
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}.
CC Membrane {ECO:0000256|RuleBase:RU000311}; Single-pass type I membrane
CC protein {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; A0A4W5KZ69; -.
DR Ensembl; ENSHHUT00000016244.1; ENSHHUP00000015690.1; ENSHHUG00000009274.1.
DR GeneTree; ENSGT00940000156021; -.
DR Proteomes; UP000314982; Unassembled WGS sequence.
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:0001667; P:ameboidal-type cell migration; IEA:UniProtKB-ARBA.
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; 3.30.200.20:FF:000025; Platelet-derived growth factor receptor alpha; 1.
DR FunFam; 1.10.510.10:FF:000140; Platelet-derived growth factor receptor beta; 1.
DR FunFam; 2.60.40.10:FF:000223; Platelet-derived growth factor receptor beta; 1.
DR Gene3D; 2.60.40.10; Immunoglobulins; 6.
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; 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 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 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:UP000314982};
KW Repeat {ECO:0000256|ARBA:ARBA00022737};
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 561..585
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 275..355
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 360..451
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 629..1005
FT /note="Protein kinase"
FT /evidence="ECO:0000259|PROSITE:PS50011"
FT REGION 1032..1095
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 1033..1046
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 1074..1091
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 853
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-1"
FT BINDING 608
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 635..643
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-51"
FT BINDING 636..643
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 663
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2,
FT ECO:0000256|PROSITE-ProRule:PRU10141"
FT BINDING 711..717
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 857
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 858
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 871
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT DISULFID 116..161
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 210..252
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 298..337
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 470..537
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
SQ SEQUENCE 1120 AA; 125210 MW; A959BE259D861895 CRC64;
MEETEFTISI EAFPAPKVTW LKDDIAITEN SYFLTKTRRL GGNHYQSTLT LRQSLEKDSG
NYTIVVLSSA HTAQFSFTLK VKESGPVLFQ PASVPVLFPQ REEWIVPLHT PFTLTCRGEA
ELAWDTPVYL SEQTEEDNSG LFITTATVEN ATAGHTGFYT CFYKGGNSTE EEEDSSIYIY
VPDPEVPFVP SLVPFSNHVL NGHDEMEIQC RVSDPSANVT LVNADTQQAV PMVVYDSKRG
AVGFFSAGTY VCKALVNGEE HLSEEYIVHG WAGGSELRVE LKAQKTALLA GDTITVICVA
RGSEILEDRW KYPGKLEIQY TLTVPQASAK DSGIYVCSIT DIISNENQTK ELAITVYEKP
FVSLRPAFSS QESADLDEVR QFQADIDSFP SAQVTWLKDG LPLNDVAAEI TTSLRKVNET
RYKSVLTLIR AKEEDSGNYT IRVKGEAEEL PAVIVDLMDL HHGSGQSVVC IAGGMPTPKV
EWFICKNIKH CANDSSQWVP LPTNNTEITV EAHIDQDNQL ESQVIFGHLE NTLAVRCLAR
NEMAAVSREV KLVSQDPHSE LTVAAASLVL LVFVIISLIV LVIIWKQKPR YEIRWRVIES
VSPDGHEYIY VDPMQLPYDS RWEFSRDGLV LGRVLGSGAF GKVVEGTAYG LSRSQPVMKV
AVKMLKPTAR SSEKQALMSE LKIMTHLGPH LNIVNLLGAC TKSGPTYIIT EYCFYGDLVN
YLHKNRENFI SLHPEKTKKD LDIFGINPAD ESSRSYVILS FESGKGDYMD MKQADTTQYV
PMLEMSDASK YSDIQRSEYN HPPSQKGFKS VLMDNLLPGD GNEGLSTTDL LSFTYQVARG
MEFLSSKNCV HRDLAARNVL LSQGKIVKIC DFGLARDIMH DNNYVSKGST FLPVKWMAPE
SIFDNMYTTL SDVWSYGILL WEIFSLGGTP YPGMVVDSSF YNKIKSGYRM AKPEHAPTDV
YEMMMKCWNS EPEKRPSFFS LSESVASLLP SGYKRCFERV NHEFLKSDHP AVTRVQVEND
DTYVGITYKN QGKSKDRESG FDEQRLSSDS GYIIPLPDLD PPSDDEYCKR NRHSSQTSEE
SAIETGSSST LAKREGETLE DITLLDEMCL DSELVEDSFL
//
