PDGFRA
Platelet-derived growth factor receptor alpha
Also known as: CD140a, GAS9, PDGFR2, PGFRA_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P16234
- Gene
- PDGFRA
- Ensembl
- ENSG00000134853
- Chromosome
- 4
- Canonical length
- 1089 aa
- Protein class
- Cancer-related genes, CD markers, Disease related genes, Enzymes, FDA approved drug targets, Human disease related genes, Plasma proteins, Predicted intracellular proteins, Predicted membrane proteins, RAS pathway related proteins
- Subcellular location
- Nucleoplasm,Nuclear bodies,Plasma membrane,Cell Junctions,Primary cilium
- Secretome location
- Intracellular and membrane
- Quaternary structure
- Homodimer
OverviewNCBI Gene
This gene encodes a cell surface tyrosine kinase receptor for members of the platelet-derived growth factor family. These growth factors are mitogens for cells of mesenchymal origin. The identity of the growth factor bound to a receptor monomer determines whether the functional receptor is a homodimer or a heterodimer, composed of both platelet-derived growth factor receptor alpha and beta polypeptides. Studies suggest that this gene plays a role in organ development, wound healing, and tumor progression. Mutations in this gene have been associated with idiopathic hypereosinophilic syndrome, somatic and familial gastrointestinal stromal tumors, and a variety of other cancers. [provided by RefSeq, Mar 2012]
Canonical amino-acid sequenceUniProt
1089 residues, UniProt reviewed canonical sequence.
>P16234|PDGFRA
1 MGTSHPAFLV LGCLLTGLSL ILCQLSLPSI LPNENEKVVQ LNSSFSLRCF GESEVSWQYP
61 MSEEESSDVE IRNEENNSGL FVTVLEVSSA SAAHTGLYTC YYNHTQTEEN ELEGRHIYIY
121 VPDPDVAFVP LGMTDYLVIV EDDDSAIIPC RTTDPETPVT LHNSEGVVPA SYDSRQGFNG
181 TFTVGPYICE ATVKGKKFQT IPFNVYALKA TSELDLEMEA LKTVYKSGET IVVTCAVFNN
241 EVVDLQWTYP GEVKGKGITM LEEIKVPSIK LVYTLTVPEA TVKDSGDYEC AARQATREVK
301 EMKKVTISVH EKGFIEIKPT FSQLEAVNLH EVKHFVVEVR AYPPPRISWL KNNLTLIENL
361 TEITTDVEKI QEIRYRSKLK LIRAKEEDSG HYTIVAQNED AVKSYTFELL TQVPSSILDL
421 VDDHHGSTGG QTVRCTAEGT PLPDIEWMIC KDIKKCNNET SWTILANNVS NIITEIHSRD
481 RSTVEGRVTF AKVEETIAVR CLAKNLLGAE NRELKLVAPT LRSELTVAAA VLVLLVIVII
541 SLIVLVVIWK QKPRYEIRWR VIESISPDGH EYIYVDPMQL PYDSRWEFPR DGLVLGRVLG
601 SGAFGKVVEG TAYGLSRSQP VMKVAVKMLK PTARSSEKQA LMSELKIMTH LGPHLNIVNL
661 LGACTKSGPI YIITEYCFYG DLVNYLHKNR DSFLSHHPEK PKKELDIFGL NPADESTRSY
721 VILSFENNGD YMDMKQADTT QYVPMLERKE VSKYSDIQRS LYDRPASYKK KSMLDSEVKN
781 LLSDDNSEGL TLLDLLSFTY QVARGMEFLA SKNCVHRDLA ARNVLLAQGK IVKICDFGLA
841 RDIMHDSNYV SKGSTFLPVK WMAPESIFDN LYTTLSDVWS YGILLWEIFS LGGTPYPGMM
901 VDSTFYNKIK SGYRMAKPDH ATSEVYEIMV KCWNSEPEKR PSFYHLSEIV ENLLPGQYKK
961 SYEKIHLDFL KSDHPAVARM RVDSDNAYIG VTYKNEEDKL KDWEGGLDEQ RLSADSGYII
1021 PLPDIDPVPE EEDLGKRNRH SSQTSEESAI ETGSSSSTFI KREDETIEDI DMMDDIGIDS
1081 SDLVEDSFLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PDGFRA can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 1
- Mean surface accessibility (rSASA)
- 0.36
- Highest tissue expression
- 188 nTPM
Expression across tissuesHPA
Tissue
- ovary: 188 nTPM
- urinary bladder: 60 nTPM
- placenta: 59 nTPM
- cervix: 46 nTPM
- spleen: 45 nTPM
- smooth muscle: 45 nTPM
Single-cell type
- peritubular myoid cells: 334 nCPM
- leydig cells: 302 nCPM
- oligodendrocyte progenitor cells: 296 nCPM
- endometrial stromal cells: 261 nCPM
- fibroblasts: 246 nCPM
- decidual stromal cells: 204 nCPM
Immune cell
- basophil: 0.7 nTPM
- neutrophil: 0.2 nTPM
- memory CD4 T-cell: 0.1 nTPM
- naive B-cell: 0.1 nTPM
- naive CD4 T-cell: 0.1 nTPM
- classical monocyte: 0 nTPM
Brain region
- white matter: 55 nTPM
- choroid plexus: 54 nTPM
- medulla oblongata: 51 nTPM
- pons: 46 nTPM
- amygdala: 43 nTPM
- basal ganglia: 43 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about PDGFRA.
Disease | AllUniProt
Conditions PDGFRA is implicated in, by any mechanism.
- Gastrointestinal stromal tumor (GIST) MIM:606764
- GIST-plus syndrome (GISTPS) MIM:175510
Disease | GeneticClinVar
7 pathogenic / likely-pathogenic of 3,906 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Gastrointestinal stromal tumor
- Polyps, multiple and recurrent inflammatory fibroid, gastrointestinal
Disease | AutoantibodyPubMed
Conditions in which antibodies against PDGFRA are reported. Each links to that disease's full target list.
ReferencesPubMed · IEDB
Publications for PDGFRA from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
9 publications
- PDGF/PDGFR: A Possible Molecular Target in Scleroderma Fibrosis.
2022 · Int J Mol Sci · RCR 3.3 · 33 citations - Lack of detection of agonist activity by antibodies to platelet-derived growth factor receptor alpha in a subset of normal and systemic sclerosis patient sera.
2009 · Arthritis Rheum · RCR 1.5 · 62 citations - Epitope Specificity Determines Pathogenicity and Detectability of Anti-Platelet-Derived Growth Factor Receptor α Autoantibodies in Systemic Sclerosis.
2015 · Arthritis Rheumatol · RCR 1.2 · 34 citations - Anti-PDGFR-alpha antibodies measured by non-bioactivity assays are not specific for systemic sclerosis.
2008 · Ann Rheum Dis · RCR 0.6 · 25 citations - Alteration of fibroblast phenotype by asbestos-induced autoantibodies.
2011 · J Immunotoxicol · RCR 0.6 · 18 citations
Show 4 more
- Autoantibodies against platelet-derived growth factor receptor alpha in patients with systemic lupus erythematosus.
2010 · Mod Rheumatol · RCR 0.5 · 20 citations - Characterization of binding and quantification of human autoantibodies to PDGFRα using a biosensor-based approach.
2017 · Anal Biochem · RCR 0.5 · 11 citations - Adeno-Associated Virus Type 5 Infection via PDGFRα Is Associated With Interstitial Lung Disease in Systemic Sclerosis and Generates Composite Peptides and Epitopes Recognized by the Agonistic Immunoglobulins Present in Patients With Systemic Sclerosis.
2024 · Arthritis Rheumatol - Anti-PDGFRα autoantibody - a novel diagnostic and prognostic marker - may mediate non-small cell lung cancer progression via the PI3K/AKT/NF-κB signaling pathway.
2026 · Br J Cancer
Reference: B cellIEDB
1 publication
- Peptide microarray-based characterization of antibody responses to host proteins after bacille Calmette-Guérin vaccination.
2017 · Int J Infect Dis · RCR 0.7 · 19 citations
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. IEDB — curated epitope assays from the Immune Epitope Database (Vita et al., Nucleic Acids Research 2019). Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.17
- gnomAD pLI
- 1
- gnomAD missense Z
- 1.94
- DepMap mean gene effect
- -0.26
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- adrenal gland development
- cardiac myofibril assembly
- cell activation
- cell chemotaxis
- cell migration
- cell surface receptor protein tyrosine kinase signaling pathway
- cellular response to amino acid stimulus
- cellular response to reactive oxygen species
- embryonic cranial skeleton morphogenesis
- embryonic digestive tract morphogenesis
- embryonic skeletal system morphogenesis
- estrogen metabolic process
- extracellular matrix organization
- face morphogenesis
- hematopoietic progenitor cell differentiation
- in utero embryonic development
- Leydig cell differentiation
- lung development
- luteinization
- male genitalia development
- metanephric glomerular capillary formation
- negative regulation of platelet activation
- odontogenesis of dentin-containing tooth
- peptidyl-tyrosine phosphorylation
- platelet aggregation
- platelet-derived growth factor receptor signaling pathway
- platelet-derived growth factor receptor-alpha signaling pathway
- positive regulation of calcium-mediated signaling
- positive regulation of cell migration
- positive regulation of cell population proliferation
- positive regulation of cell proliferation by VEGF-activated platelet derived growth factor receptor signaling pathway
- positive regulation of chemotaxis
- positive regulation of ERK1 and ERK2 cascade
- positive regulation of fibroblast proliferation
- positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
- protein autophosphorylation
- regulation of actin cytoskeleton organization
- regulation of mesenchymal stem cell differentiation
- retina vasculature development in camera-type eye
- roof of mouth development
- signal transduction involved in regulation of gene expression
- white fat cell differentiation
- wound healing
Molecular functions
- ATP binding
- phospholipase C activator activity
- platelet-derived growth factor binding
- platelet-derived growth factor receptor binding
- protein homodimerization activity
- protein kinase activity
- protein-containing complex binding
- transmembrane receptor protein tyrosine kinase activity
- vascular endothelial growth factor binding
- vascular endothelial growth factor receptor activity
- platelet-derived growth factor alpha-receptor activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Protein kinase domain
- Serine-threonine/tyrosine-protein kinase, catalytic domain
- Tyrosine-protein kinase, receptor class III, conserved site
- Immunoglobulin subtype 2
- Immunoglobulin domain subtype
- Immunoglobulin-like domain
- Tyrosine-protein kinase, active site
- Protein kinase-like domain superfamily
- Immunoglobulin I-set
- Immunoglobulin-like fold
- Protein kinase, ATP binding site
- Tyrosine-protein kinase, catalytic domain
- Immunoglobulin-like domain superfamily
- Receptor Tyrosine Kinase
- Immunoglobulin I-set domain
- Protein tyrosine and serine/threonine kinase
- Platelet-derived growth factor receptor Ig-like domain 4
- Platelet-derived growth factor receptor alpha
KeywordsUniProt
- ATP-binding
- Cell membrane
- Cell projection
- Chemotaxis
- Developmental protein
- Disulfide bond
- Glycoprotein
- Golgi apparatus
- Host-virus interaction
- Immunoglobulin domain
- Kinase
- Membrane
- Nucleotide-binding
- Phosphoprotein
- Proto-oncogene
- Receptor
- Repeat
- Signal
- Transferase
- Transmembrane
- Transmembrane helix
- Tyrosine-protein kinase
- Ubl conjugation
InteractionsUniProt · HPA
Protein binding partners of PDGFRA in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads PDGFRA as an antibody target. Whether an autoantibody or antibody against PDGFRA could matter depends on whether native PDGFRA is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PDGFRA is annotated at the cell surface, where native PDGFRA is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label PDGFRA as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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