TGFA
Protransforming growth factor alpha
Also known as: TGFA_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P01135
- Gene
- TGFA
- Ensembl
- ENSG00000163235
- Chromosome
- 2
- Canonical length
- 160 aa
- Protein class
- Cancer-related genes, Human disease related genes, Plasma proteins, Predicted membrane proteins, Predicted secreted proteins, RAS pathway related proteins
- Subcellular location
- Vesicles
- Secretome location
- Secreted to blood
OverviewNCBI Gene
This gene encodes a growth factor that is a ligand for the epidermal growth factor receptor, which activates a signaling pathway for cell proliferation, differentiation and development. This protein may act as either a transmembrane-bound ligand or a soluble ligand. This gene has been associated with many types of cancers, and it may also be involved in some cases of cleft lip/palate. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]
Canonical amino-acid sequenceUniProt
160 residues, UniProt reviewed canonical sequence.
>P01135|TGFA
1 MVPSAGQLAL FALGIVLAAC QALENSTSPL SADPPVAAAV VSHFNDCPDS HTQFCFHGTC
61 RFLVQEDKPA CVCHSGYVGA RCEHADLLAV VAASQKKQAI TALVVVSIVA LAVLIITCVL
121 IHCCQVRKHC EWCRALICRH EKPSALLKGR TACCHSETVVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against TGFA 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)
- 0.49
- Highest tissue expression
- 25 nTPM
Expression across tissuesHPA
Tissue
- spinal cord: 25 nTPM
- esophagus: 24 nTPM
- gallbladder: 13 nTPM
- vagina: 13 nTPM
- kidney: 13 nTPM
- skin: 12 nTPM
Single-cell type
- esophageal apical cells: 306 nCPM
- urothelial cells: 181 nCPM
- pancreatic duct cells: 151 nCPM
- neutrophils: 146 nCPM
- early spermatids: 146 nCPM
- endometrial glandular cells: 116 nCPM
Immune cell
- neutrophil: 24 nTPM
- eosinophil: 24 nTPM
- basophil: 11 nTPM
- MAIT T-cell: 4.4 nTPM
- gdT-cell: 1.7 nTPM
- memory CD4 T-cell: 1 nTPM
Brain region
- white matter: 53 nTPM
- medulla oblongata: 43 nTPM
- spinal cord: 33 nTPM
- basal ganglia: 33 nTPM
- pons: 31 nTPM
- midbrain: 31 nTPM
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)
- 0.56
- gnomAD pLI
- 0.72
- gnomAD missense Z
- 0.76
- DepMap mean gene effect
- 0.03
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- angiogenesis
- cell surface receptor signaling pathway
- epidermal growth factor receptor signaling pathway
- ERBB2-EGFR signaling pathway
- hepatocyte proliferation
- intracellular signal transduction
- mammary gland alveolus development
- positive regulation of cell division
- positive regulation of cell population proliferation
- positive regulation of epithelial cell proliferation
- positive regulation of MAPK cascade
- positive regulation of mitotic nuclear division
Molecular functions
- epidermal growth factor receptor binding
- growth factor activity
- receptor ligand activity
- transmembrane receptor protein tyrosine kinase activator activity
Cellular components
- basolateral plasma membrane
- cell surface
- clathrin-coated endocytic vesicle membrane
- cytoplasmic vesicle
- endoplasmic reticulum membrane
- endoplasmic reticulum-Golgi intermediate compartment membrane
- ER to Golgi transport vesicle membrane
- extracellular region
- extracellular space
- perinuclear region of cytoplasm
- plasma membrane
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of TGFA 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 TGFA as an antibody target. Whether an autoantibody or antibody against TGFA could matter depends on whether native TGFA is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
TGFA is annotated at the cell surface, where native TGFA 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 TGFA as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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