NTN1
Netrin-1
Also known as: NET1, NET1_HUMAN, NTN1L
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O95631
- Gene
- NTN1
- Ensembl
- ENSG00000065320
- Chromosome
- 17
- Canonical length
- 604 aa
- Protein class
- Cancer-related genes, Disease related genes, Human disease related genes, Predicted intracellular proteins, Predicted secreted proteins
- Subcellular location
- Nucleoplasm,Actin filaments,Cytosol
- Secretome location
- Secreted to extracellular matrix
OverviewNCBI Gene
Netrin is included in a family of laminin-related secreted proteins. The function of this gene has not yet been defined; however, netrin is thought to be involved in axon guidance and cell migration during development. Mutations and loss of expression of netrin suggest that variation in netrin may be involved in cancer development. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
604 residues, UniProt reviewed canonical sequence.
>O95631|NTN1
1 MMRAVWEALA ALAAVACLVG AVRGGPGLSM FAGQAAQPDP CSDENGHPRR CIPDFVNAAF
61 GKDVRVSSTC GRPPARYCVV SERGEERLRS CHLCNASDPK KAHPPAFLTD LNNPHNLTCW
121 QSENYLQFPH NVTLTLSLGK KFEVTYVSLQ FCSPRPESMA IYKSMDYGRT WVPFQFYSTQ
181 CRKMYNRPHR APITKQNEQE AVCTDSHTDM RPLSGGLIAF STLDGRPSAH DFDNSPVLQD
241 WVTATDIRVA FSRLHTFGDE NEDDSELARD SYFYAVSDLQ VGGRCKCNGH AARCVRDRDD
301 SLVCDCRHNT AGPECDRCKP FHYDRPWQRA TAREANECVA CNCNLHARRC RFNMELYKLS
361 GRKSGGVCLN CRHNTAGRHC HYCKEGYYRD MGKPITHRKA CKACDCHPVG AAGKTCNQTT
421 GQCPCKDGVT GITCNRCAKG YQQSRSPIAP CIKIPVAPPT TAASSVEEPE DCDSYCKASK
481 GKLKINMKKY CKKDYAVQIH ILKADKAGDW WKFTVNIISV YKQGTSRIRR GDQSLWIRSR
541 DIACKCPKIK PLKKYLLLGN AEDSPDQSGI VADKSSLVIQ WRDTWARRLR KFQQREKKGK
601 CKKALocalizationUniProt · AlphaFold · HPA
Whether an antibody against NTN1 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)
- 0.33
- Highest tissue expression
- 56 nTPM
Expression across tissuesHPA
Tissue
- heart muscle: 56 nTPM
- blood vessel: 36 nTPM
- esophagus: 18 nTPM
- stomach: 17 nTPM
- colon: 14 nTPM
- midbrain: 14 nTPM
Single-cell type
- respiratory basal cells: 535 nCPM
- respiratory secretory cells: 421 nCPM
- renal collecting duct intercalated cells: 382 nCPM
- respiratory deuterosomal cells: 354 nCPM
- salivary duct cells: 328 nCPM
- conjunctival goblet cells: 302 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
- midbrain: 81 nTPM
- pons: 31 nTPM
- spinal cord: 29 nTPM
- medulla oblongata: 28 nTPM
- cerebellum: 22 nTPM
- thalamus: 21 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about NTN1.
Disease | AllUniProt
Conditions NTN1 is implicated in, by any mechanism.
- Mirror movements 4 (MRMV4) MIM:618264
Disease | GeneticClinVar
3 pathogenic / likely-pathogenic of 125 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Mirror movements 4
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)
- 0.22
- gnomAD pLI
- 1
- gnomAD missense Z
- 2.27
- DepMap mean gene effect
- -0.13
- 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
- anterior/posterior axon guidance
- apoptotic process
- Cdc42 protein signal transduction
- cell-cell adhesion
- chemorepulsion of axon
- glial cell proliferation
- inner ear morphogenesis
- mammary gland duct morphogenesis
- motor neuron migration
- negative regulation of axon extension
- nuclear migration
- positive regulation of axon extension
- positive regulation of cell motility
- positive regulation of glial cell proliferation
- Ras protein signal transduction
- regulation of synapse assembly
- regulation of transcription by RNA polymerase II
- substrate-dependent cell migration, cell extension
- regulation of glial cell migration
Molecular functions
- DNA-binding transcription factor activity, RNA polymerase II-specific
- RNA polymerase II cis-regulatory region sequence-specific DNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Netrin domain
- Laminin-type EGF domain
- Laminin, N-terminal
- Galactose-binding-like domain superfamily
- Tissue inhibitor of metalloproteinases-like, OB-fold
- Netrin module, non-TIMP type
- Laminin/Netrin Extracellular Matrix
- Laminin/attractin/netrin-like, EGF domain
- Laminin EGF domain
- Laminin N-terminal (Domain VI)
- UNC-6/NTR/C345C module
- Laminin/attractin EGF domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of NTN1 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 NTN1 as an antibody target. Whether an autoantibody or antibody against NTN1 could matter depends on whether native NTN1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
NTN1 is annotated as secreted, so native NTN1 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 NTN1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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