Gene
DLK1
delta like non-canonical Notch ligand 1
- HGNC 2907↗(opens in a new tab)
- Ensembl gene ENSG00000185559↗(opens in a new tab)
- NCBI Gene 8788↗(opens in a new tab)
Summary
- Cytogenetic location
- 14q32.2
- Coordinates
- Chromosome 14: 100,726,892–100,738,224 (GRCh38)
- Exons
- 5 exons across 11.3 kb
- Protein
- 383 amino acids
- Also known as
- FA1, pG2, Pref-1, ZOG, Delta1
- MANE Select transcript
- ENST00000341267.9NM_003836.7
- 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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Monogenic Precocious Puberty
- Central precocious puberty
Early activation of the brain signals that start puberty, including familial forms due to MKRN3, DLK1, KISS1 and KISS1R variants.
- 1 GenCC submitter rates it definitive or strong
What knowing changes
Treatment with GnRH analogues can pause puberty until a more typical age.
How DLK1 is laid out
- Coding sequence
- Untranslated region
- Intron
- Direction of transcription
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 4.7 kb of the gene's 11.3 kb; 1,152 of those bases code for the protein.
Genes linked to the same conditions
Traits linked to DLK1
The Human Phenotype Ontology lists these as features of the rare conditions DLK1 can cause. Each trait's page lists the other genes linked to it.
Abnormality of head or neck
- Abnormal facial shape
- Abnormally large tongue
- Chin with horizontal crease
- Deep philtrum
- Depressed nasal bridge
- Hairy forehead
- Prominent forehead
- Receding chin
Show 37 more traits
- Short neck
- Short opening between the eyelids
- Abnormally small head
- Asymmetry of the posterior head
- Bifid uvula
- Big lower jaw
- Broad forehead
- Chin with H-shaped crease
- Cleft palate
- Decreased facial expression
- Decreased size of maxilla
- Dense bone of skull base
- Downturned corners of mouth
- Drooling
- Exaggerated cupid's bow
- Extra bones within cranial sutures
- Eye folds
- Frontal bossing
- Full cheeks
- Full lips
- High palate
- Little lower jaw
- Long philtrum
- Narrow eyelid opening
- Narrow forehead
- Narrow mouth
- Narrow opening between the eyelids
- Nasal tip, upturned
- Open mouth
- Prominent area between the eyebrows
- Redundant neck skin
- Relatively large head
- Short philtrum
- Tented mouth
- Wide nasal bridge
- Wide nose
- Wider-than-typical soft spot of skull
Abnormality of limbs
- Short foot
- Small hand
- Limb undergrowth
- Abnormality of the outermost finger bone
- Acromicria
- Bowed shankbone
- Broad outermost finger bone
- Coxa valga
Show 19 more traits
- Curvature of digit
- Curvature of middle finger
- Flexion contracture of finger
- Front half of foot turns inward
- Interphalangeal joint contracture of finger
- Inward turned thumb
- Long toe
- Metaphyseal spurs
- Overlapping toe
- Prominent heel bone
- Short neck of thighbone
- Short shinbone
- Shortened 1st long bone of hand
- Single transverse palmar crease
- Small end part of innermost shankbone
- Thumb contracture
- Ulnar deviation of the wrist
- Upper limb undergrowth
- Wrist flexion contracture
Abnormality of the musculoskeletal system
- Coat hanger sign of ribs
- Double-Jointed
- Low muscle tone
- Small chest
- Abnormality of the skeletal system
- Flexed joint that cannot be straightened
- Funnel chest
- Hypoplastic iliac wing
Show 17 more traits
- Kyphoscoliosis
- Low muscle tone, in neonatal onset
- Abnormality of the costochondral junction
- Absent glenoid fossa
- Anterior rib cupping
- Decreased muscle tone in infant
- Long collarbone
- Missing part of vertebrae
- Narrow chest
- Permanent flexion of the finger or toe
- Prominent sternum
- Scoliosis
- Short ribs
- Small shoulder blade
- Small wings of the pelvic girdle
- Speckled calcifications in end part of bone
- Wavy ribs
Abnormality of the cardiovascular system
- Abnormal aortic arch morphology
- Abnormality of the heart
- An opening in the wall separating the top two chambers of the heart
- Avascular peripheral retina
- Enlarged and thickened heart muscle
- Enlarged liver and spleen
- Hole in heart wall separating two lower heart chambers
- Increased blood pressure in blood vessels of lungs
Show 1 more trait
Growth abnormality
- Growth delay as children
- Prenatal growth deficiency
- Birth weight > 90th percentile
- Growth delay
- Obesity
- Short stature
- Small for gestational age
- Truncal obesity
Show 1 more trait
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.
- 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.). DLK1 gene: delta like non-canonical Notch ligand 1. Retrieved 17 October 2026, from https://dantelabs.com/genes/dlk1
Dante Labs. DLK1 gene: delta like non-canonical Notch ligand 1 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/dlk1
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