Gene
NOTCH1
notch receptor 1
- HGNC 7881↗(opens in a new tab)
- Ensembl gene ENSG00000148400↗(opens in a new tab)
- NCBI Gene 4851↗(opens in a new tab)
Summary
- Cytogenetic location
- 9q34.3
- Coordinates
- Chromosome 9: 136,494,433–136,546,048 (GRCh38)
- Exons
- 34 exons across 51.6 kb
- Protein
- 2,555 amino acids
- Inheritance
- Autosomal dominant
- Previous symbols
- TAN1
- MANE Select transcript
- ENST00000651671.1NM_017617.5
- Locus type
- gene with protein product
- Very high
- Confident
- Low
- Very low
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Inherited Congenital Heart Defects
- NOTCH1-Related Heart DiseaseAutosomal dominant
A range of heart conditions caused by changes in NOTCH1, including bicuspid aortic valve, left-sided heart defects and Adams-Oliver syndrome.
- ClinGen rates the link definitive
- 4 GenCC submitters rate it definitive or strong
Inheritance
- Autosomal dominant
- One changed copy, from either parent, is enough. A parent who has one passes it on to each child with a one-in-two chance.
How NOTCH1 is laid out
- Coding sequence
- Untranslated region
- Intron
- Direction of transcription
- Known disease-causing sites
- Stretches short reads find hard
Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.
Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).
Nearby genes from Ensembl release 116, on GRCh38.
Exons make up 9.6 kb of the gene's 51.6 kb; 7,668 of those bases code for the protein.
How a genome test reads NOTCH1
110
positions in NOTCH1 where ClinVar classes a change as pathogenic or likely pathogenic
None of them falls in a region short reads find hard.
A whole genome covers all 51.6 kb of NOTCH1, introns included, not only the 9.6 kb of exons.
Traits linked to NOTCH1
The Human Phenotype Ontology lists these as features of the rare conditions NOTCH1 can cause. Each trait's page lists the other genes linked to it.
Abnormality of the cardiovascular system
- Aortic valve has two leaflets rather than three
- Aortic regurgitation
- Aortic valve calcification
- Cutis marmorata
- Heart murmur
- Narrowing of aorta
- Narrowing of aortic valve
- Thoracic aorta calcification
Show 22 more traits
- Abnormal pulmonary valve morphology
- Aortic arch aneurysm
- High blood pressure
- Pulmonary artery atresia
- Tetralogy of Fallot
- Arteriovenous malformation
- Double outlet right ventricle
- Hole in heart wall separating two lower heart chambers
- Hypersplenism
- Increased blood pressure in blood vessels of lungs
- Increased spleen size
- Mitral atresia
- Mitral stenosis
- Narrowing of pulmonic valve
- Portal hypertension
- Abnormal left ventricular outflow tract morphology
- Ascending aortic dissection
- Underdeveloped left heart
- Collection of dilated blood vessels that forms mass
- Patent foramen ovale
- Right atrial enlargement
- Right ventricular hypertrophy
Abnormality of limbs
- Abnormality of the lower limb
- Abnormality of the upper limb
- Absent hand
- Absent toe
- Abnormal shape of long bones of hand
- Finger syndactyly
- Short fingers or toes
- Short outermost finger bone
Show 3 more traits
Abnormality of the integument
- Absence of part of skin at birth
- Absent/small skin
- Sparse hair
- Absent toenail
- Cutis marmorata telangiectatica congenita
- Absent fingernail
- Absent/small toenails
- Hair loss
Show 3 more traits
External links
Gene records
Transcript
Protein
Where this comes from
- HGNC: the gene's symbol, name, other symbols and location.
- MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.
- GenCC and ClinGen, released 2026-10-16: which conditions the gene is linked to, and how strongly.
- The ACMG secondary findings list, SF v3.2.
- ClinVar and the GIAB stratifications: known disease-causing sites, and the regions short reads find hard.
- The Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
Cite this page
Dante Labs. (n.d.). NOTCH1 gene: notch receptor 1. Retrieved 17 October 2026, from https://dantelabs.com/genes/notch1
Dante Labs. NOTCH1 gene: notch receptor 1 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/notch1
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