NTF3
Neurotrophin-3
Also known as: NGF2, NTF3_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P20783
- Gene
- NTF3
- Ensembl
- ENSG00000185652
- Chromosome
- 12
- Canonical length
- 257 aa
- Protein class
- Cancer-related genes, Predicted secreted proteins, RAS pathway related proteins
- Subcellular location
- Vesicles
- Secretome location
- Secreted in other tissues
OverviewNCBI Gene
The protein encoded by this gene is a member of the neurotrophin family, that controls survival and differentiation of mammalian neurons. This protein is closely related to both nerve growth factor and brain-derived neurotrophic factor. It may be involved in the maintenance of the adult nervous system, and may affect development of neurons in the embryo when it is expressed in human placenta. NTF3-deficient mice generated by gene targeting display severe movement defects of the limbs. The mature peptide of this protein is identical in all mammals examined including human, pig, rat and mouse. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
257 residues, UniProt reviewed canonical sequence.
>P20783|NTF3
1 MSILFYVIFL AYLRGIQGNN MDQRSLPEDS LNSLIIKLIQ ADILKNKLSK QMVDVKENYQ
61 STLPKAEAPR EPERGGPAKS AFQPVIAMDT ELLRQQRRYN SPRVLLSDST PLEPPPLYLM
121 EDYVGSPVVA NRTSRRKRYA EHKSHRGEYS VCDSESLWVT DKSSAIDIRG HQVTVLGEIK
181 TGNSPVKQYF YETRCKEARP VKNGCRGIDD KHWNSQCKTS QTYVRALTSE NNKLVGWRWI
241 RIDTSCVCAL SRKIGRTLocalizationUniProt · AlphaFold · HPA
Whether an antibody against NTF3 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)
- 0.53
- Highest tissue expression
- 27 nTPM
Expression across tissuesHPA
Tissue
- blood vessel: 27 nTPM
- ovary: 12 nTPM
- liver: 7.2 nTPM
- vagina: 6.8 nTPM
- cerebellum: 6.7 nTPM
- cervix: 5.4 nTPM
Single-cell type
- hepatic stellate cells: 110 nCPM
- vascular smooth muscle cells: 78 nCPM
- pituitary stem cells: 60 nCPM
- smooth muscle cells: 51 nCPM
- salivary myoepithelial cells: 34 nCPM
- ovarian stromal cells: 34 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- cerebellum: 6.9 nTPM
- cerebral cortex: 2.5 nTPM
- hippocampal formation: 2.2 nTPM
- medulla oblongata: 0.5 nTPM
- hypothalamus: 0.3 nTPM
- pons: 0.3 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)
- 0.37
- gnomAD pLI
- 0.93
- gnomAD missense Z
- 1.74
- DepMap mean gene effect
- 0.02
- 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
- cell surface receptor protein tyrosine kinase signaling pathway
- cell-cell signaling
- induction of positive chemotaxis
- modulation of chemical synaptic transmission
- negative regulation of neuron apoptotic process
- nerve development
- nerve growth factor signaling pathway
- nervous system development
- neuron projection morphogenesis
- positive regulation of cell migration
- positive regulation of cell population proliferation
- positive regulation of MAPK cascade
- positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
- positive regulation of receptor internalization
- regulation of apoptotic process
- signal transduction
Molecular functions
- chemoattractant activity
- growth factor activity
- nerve growth factor receptor binding
- signaling receptor binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Nerve growth factor-related
- Nerve growth factor conserved site
- Nerve growth factor-like
- Cystine-knot cytokine
- Nerve growth factor family
- Neurotrophin-3
- Neutrophin-3, N-terminal
- Neutrophin-3 N-terminus
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of NTF3 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 NTF3 as an antibody target. Whether an autoantibody or antibody against NTF3 could matter depends on whether native NTF3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
NTF3 is annotated as secreted, so native NTF3 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.
Annotation status
The present source text does not explicitly label NTF3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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