PGF
Placenta growth factor
Also known as: D12S1900, PGFL, PIGF, PLGF, PLGF_HUMAN, PlGF-2, SHGC-10760
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P49763
- Gene
- PGF
- Ensembl
- ENSG00000119630
- Chromosome
- 14
- Canonical length
- 221 aa
- Protein class
- Cancer-related genes, Candidate cardiovascular disease genes, FDA approved drug targets, Plasma proteins, Predicted secreted proteins, RAS pathway related proteins
- Subcellular location
- Nucleoplasm,Mitochondria,Cytosol
- Secretome location
- Secreted to blood
- Quaternary structure
- Homodimer
OverviewNCBI Gene
Enables growth factor activity. Involved in positive regulation of cell population proliferation. Predicted to be located in extracellular region. Predicted to be active in extracellular space. Implicated in several diseases, including brain ischemia; diabetic neuropathy; glioblastoma; myocardial infarction; and pancreatic endocrine carcinoma. Biomarker of several diseases, including artery disease (multiple); autoimmune disease of musculoskeletal system (multiple); epilepsy (multiple); limited scleroderma; and pancreatic endocrine carcinoma. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
221 residues, UniProt reviewed canonical sequence.
>P49763|PGF
1 MPVMRLFPCF LQLLAGLALP AVPPQQWALS AGNGSSEVEV VPFQEVWGRS YCRALERLVD
61 VVSEYPSEVE HMFSPSCVSL LRCTGCCGDE NLHCVPVETA NVTMQLLKIR SGDRPSYVEL
121 TFSQHVRCEC RHSPGRQSPD MPGDFRADAP SFLPPRRSLP MLFRMEWGCA LTGSQSAVWP
181 SSPVPEEIPR MHPGRNGKKQ QRKPLREKMK PERCGDAVPR RLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PGF 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
- Secreted
- Secreted
- Yes
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.55
- Highest tissue expression
- 67 nTPM
Expression across tissuesHPA
Tissue
- blood vessel: 67 nTPM
- thyroid gland: 50 nTPM
- choroid plexus: 49 nTPM
- placenta: 48 nTPM
- cervix: 27 nTPM
- fallopian tube: 22 nTPM
Single-cell type
- syncytiotrophoblasts: 2,809 nCPM
- extravillous trophoblasts: 2,361 nCPM
- migrating cytotrophoblasts: 347 nCPM
- vascular smooth muscle cells: 105 nCPM
- cytotrophoblasts: 59 nCPM
- pericytes: 51 nCPM
Immune cell
- gdT-cell: 0.4 nTPM
- eosinophil: 0.2 nTPM
- intermediate monocyte: 0.1 nTPM
- memory B-cell: 0.1 nTPM
- memory CD8 T-cell: 0.1 nTPM
- naive CD4 T-cell: 0.1 nTPM
Brain region
- hypothalamus: 34 nTPM
- choroid plexus: 32 nTPM
- midbrain: 21 nTPM
- cerebral cortex: 9.4 nTPM
- medulla oblongata: 8.4 nTPM
- pons: 8.1 nTPM
ReferencesPubMed · IEDB
Publications for PGF 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
2 publications
- Anti-placental growth factor antibody ameliorates hyperoxia-mediated impairment of lung development in neonatal rats.
2020 · Braz J Med Biol Res · RCR 0.4 · 6 citations - Naturally occurring mouse antibodies against T-cell-secreted chondroitin sulphate proteoglycan.
1988 · Immunology · RCR 0 · 1 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. 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)
- 0.8
- gnomAD pLI
- 0.13
- gnomAD missense Z
- 0.08
- DepMap mean gene effect
- 0.04
- DepMap dependency class
- none
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
- cell differentiation
- cell-cell signaling
- induction of positive chemotaxis
- positive regulation of cell division
- positive regulation of cell population proliferation
- positive regulation of mast cell chemotaxis
- response to hypoxia
- signal transduction
- sprouting angiogenesis
- vascular endothelial growth factor receptor signaling pathway
- vascular endothelial growth factor signaling pathway
Molecular functions
- chemoattractant activity
- growth factor activity
- heparin binding
- vascular endothelial growth factor receptor binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of PGF 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 PGF as an antibody target. Whether an autoantibody or antibody against PGF could matter depends on whether native PGF is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PGF is annotated as secreted, so native PGF circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.
Source-annotated serology context
The source annotations explicitly mention antibody, autoantibody, autoantigen, or autoimmune context. This is biological context, not study-specific reactivity.
- Biomarker of several diseases, including artery disease (multiple); autoimmune disease of musculoskeletal system (multiple); epilepsy (multiple); limited scleroderma; and pancreatic endocrine carcinoma.
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