ID A0A672IQL2_SALFA Unreviewed; 1074 AA.
AC A0A672IQL2;
DT 17-JUN-2020, integrated into UniProtKB/TrEMBL.
DT 17-JUN-2020, sequence version 1.
DT 28-JAN-2026, entry version 29.
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:ENSSFAP00005043155.1};
OS Salarias fasciatus (Jewelled blenny) (Blennius fasciatus).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Ovalentaria; Blenniimorphae; Blenniiformes; Blennioidei; Blenniidae;
OC Salariinae; Salarias.
OX NCBI_TaxID=181472 {ECO:0000313|Ensembl:ENSSFAP00005043155.1, ECO:0000313|Proteomes:UP000472267};
RN [1] {ECO:0000313|Ensembl:ENSSFAP00005043155.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RG Wellcome Sanger Institute Data Sharing;
RL Submitted (JUN-2019) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSSFAP00005043155.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (AUG-2025) to UniProtKB.
RN [3] {ECO:0000313|Ensembl:ENSSFAP00005043155.1}
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}.
CC -!- SIMILARITY: Belongs to the protein kinase superfamily. Tyr protein
CC kinase family. CSF-1/PDGF receptor subfamily.
CC {ECO:0000256|PIRNR:PIRNR500950}.
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DR AlphaFoldDB; A0A672IQL2; -.
DR Ensembl; ENSSFAT00005044701.1; ENSSFAP00005043155.1; ENSSFAG00005020808.1.
DR Proteomes; UP000472267; Chromosome 23.
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 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; 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 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; 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; 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.
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|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 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:UP000472267};
KW Repeat {ECO:0000256|ARBA:ARBA00022737};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR500950};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|SAM:Phobius};
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 517..541
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 211..297
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 310..397
FT /note="Ig-like"
FT /evidence="ECO:0000259|PROSITE:PS50835"
FT DOMAIN 585..957
FT /note="Protein kinase"
FT /evidence="ECO:0000259|PROSITE:PS50011"
FT REGION 749..770
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 989..1046
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 989..998
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 1026..1044
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 805
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-1"
FT BINDING 564
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 591..599
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-51"
FT BINDING 592..599
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 619
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2,
FT ECO:0000256|PROSITE-ProRule:PRU10141"
FT BINDING 667..673
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 809
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-2"
FT BINDING 810
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT BINDING 823
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-3"
FT SITE 949
FT /note="Important for interaction with phosphotyrosine-
FT binding proteins"
FT /evidence="ECO:0000256|PIRSR:PIRSR000615-4"
FT DISULFID 60..105
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 153..194
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 232..281
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
FT DISULFID 426..493
FT /evidence="ECO:0000256|PIRSR:PIRSR500950-52"
SQ SEQUENCE 1074 AA; 119793 MW; 050772B7052C5A8E CRC64;
MYKIIAGNSL SYGLEKKRIA ECVFSPASTA VMLPPSAAPV LLPEMEEMEV ALNTPFTLTC
RGGAKLAWET PIDVPKQTQE DSSGLFVTTI TVDKATAMHT GYYTCFYNRN MTEDAEDSSI
YIYVPDPDVP FVQSSEPFGN HILTEHEEME IHCRVSDPRA NVTLINVDTQ QPVPCVYDSK
RGALGLFTAG TYICKRYFQL CCRCVSGGGA LRVELTAKRT ALLAGDTLAV TCVAHGSKIL
EDHWKYPGKL NITKCLILLL QILYNLTIPQ ASTKDSGIYS CSITDIVTNE SQTKQIAIQV
FATDFMSVKP EFSPYESAEL DGVQTFIAEI LSFPSARVIW LKDGIPVSDV TAEISTSLRQ
TSETSYISVL TLIRAKEEDS GNYTMRVDNG NQSRDISLNL EVKVPAVIVD LMDIHHGSAA
GQSVVCITRG QPTPVVEWFI CKNIKHCAND TSSWEPLAAN SSDITMDSHI NEDSNLESQV
LFGHLESTLA VRCLAKNEMA AVSREIKLVS NGRHPELTVA AAVLVLLVIV IISLIVLVVI
WKQKPRYEIR WRVIESVSPD GHEYIYVDPM QLPYDSRWEF PRDRLVLGRI LGSGAFGKVV
EGTAYGLSCS QPVMKVAVKM LKPTARTSEK QALMSELKIM THLGPHLNIL NLLGACTKSG
PIYIITEYCF YGDLVNYLHK NRENFLSLNP EKNKKELDIF GINPADESSR SYVILSFESK
GDYMDMKQAD NTQYVPMLEM SNASKYSDIQ RSNYDHPPSQ KDSSGSNLLS DDLNEGLTTT
DLLSFTYQVA KGMDFLASKN CVHRDLAARN VLLSQGKIVK ICDFGLARDI MHDNNYVSKG
STFLPVKWMA PESIFDNLYT TLSDVWSYGI LLWEIFSLGG TPYPGMVVDS SFYNKIKSGY
RMSKPEHAPS DVYEMMMKCW NSEPEKRPSF QGLSENVASL LPSSYRRHYG RVNHEFLKSD
HPAVTRVCME NDEDYIGITY KNHGKLKDRE SGFDEQRLSS DSGYIIPLPD LDPISDEEYG
KRNRHSSQTS EESAIETGSS SSTFAKREGE TLEDITLLDE MCLDCSDLVE DSFL
//
