Gene
PTH1R
parathyroid hormone 1 receptor
- HGNC 9608↗(opens in a new tab)
- Ensembl gene ENSG00000160801↗(opens in a new tab)
- NCBI Gene 5745↗(opens in a new tab)
Summary
- Cytogenetic location
- 3p21.31
- Coordinates
- Chromosome 3: 46,877,721–46,903,799 (GRCh38)
- Exons
- 16 exons across 26.1 kb
- Protein
- 593 amino acids
- Inheritance
- Autosomal dominant
- Previous symbols
- PTHR, PTHR1
- MANE Select transcript
- ENST00000449590.6NM_000316.3
- 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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Primary Failure of Tooth Eruption
- Autosomal dominant
Failure of one or more teeth, usually molars, to erupt fully despite a clear eruption path, caused by PTH1R variants with variable expression.
- 3 GenCC submitters rate it definitive or strong
What knowing changes
Knowing before orthodontic treatment can avoid unsuccessful attempts to pull affected teeth into place, which can cause them to fuse to the bone.
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 PTH1R 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 2.2 kb of the gene's 26.1 kb; 1,782 of those bases code for the protein.
How a genome test reads PTH1R
15
positions in PTH1R 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 26.1 kb of PTH1R, introns included, not only the 2.2 kb of exons.
Traits linked to PTH1R
The Human Phenotype Ontology lists these as features of the rare conditions PTH1R can cause. Each trait's page lists the other genes linked to it.
Abnormality of head or neck
- Corners of eye widely separated
- Delayed eruption of teeth
- Delayed loss of baby teeth
- Depressed nasal bridge
- Downward slanting of the opening between the eyelids
- Early closure of midline skull joint
- Failure of development of more than six teeth
- Failure of eruption of tooth
Show 36 more traits
- Flat palate
- Full lower lip
- Increased thickness of skull cap
- Little lower jaw
- Long, narrow head
- Midface retrusion
- Multiple impacted teeth
- Multiple unerupted teeth
- Prominent forehead
- Short philtrum
- Prominent brow
- Short nose
- Sloping forehead
- Wide nasal bridge
- Zygomatic flattening
- Bad bite
- Big calvaria
- Born with teeth
- Dense bone of skull base
- High palate
- Long philtrum
- Nasal tip, upturned
- Protruding tongue
- Receding chin
- Bilateral choanal atresia/stenosis
- Facial asymmetry
- Full cheeks
- Large cranial suture
- Abnormal dental position
- Blockage of the rear opening of the nasal cavity
- Broad head shape
- Failure of development of between one and six teeth
- Narrowing of the rear opening of the nasal cavity
- Prominent supraorbital arches in adult
- Thick skull base
- Unerupted adult teeth
Abnormality of limbs
- Broad femoral neck
- Curvature of digit
- Delayed ankle bone maturation
- Delayed maturation of wrist bone
- Flat acetabular roof
- Long big toe
- Long thumb
- Short middle bone of finger
Show 35 more traits
- Type A1 brachydactyly
- Wide long bone of foot
- Abnormality of the wide portion of a long bone
- Disproportionately short middle portion of limb
- Disproportionately short upper portion of limb
- Flared wide portion of long bone
- Limited elbow flexion
- Metaphyseal cupping
- Short outer part of limbs
- Smaller or shorter than typical limbs
- Abnormality of the fingertips
- Abnormality of the hipbone socket
- Bowing of the long bones
- Broad foot
- Broad palm
- Irregular wide portion of a long bone
- Outward turned elbows
- Short calf bone
- Short finger bones
- Short foot
- Short palm
- Short toe
- Shortened long bone of hand
- Knock knees
- Left and right leg differ in length or width
- Madelung deformity
- Outward bow-leggedness
- Unequal size of arms
- Accelerated ankle bone maturation
- Accelerated wrist bone maturation
- Clubbing of fingers
- Curvature of little finger
- Hip contracture
- Inability to straighten knee
- Metaphyseal chondrodysplasia
Abnormality of the musculoskeletal system
- Broad ribs
- Flat end part of bone
- Narrow chest
- Pseudoepiphyses
- Short ribs
- Abnormal development of end part of bone
- Abnormal shape of cartilage
- Abnormal shape of end part of bone
Show 31 more traits
- Absent collarbone
- Advanced bone age
- Breakdown of bone
- Broad collarbone
- Flattened vertebrae
- Increased bone mineral density
- Lethal skeletal dysplasia
- Multiple enchondromatosis
- Shorter than typical length between neck and abdomen
- Abnormal bone maturation
- Abnormal trabecular bone morphology
- Absence of the sacrum
- Bone pain
- Delayed maturation of end part of long bone
- Fusion of joints
- High iliac wing
- Joint stiffness
- Limited hip movement
- Narrow pelvis bone
- Osteopenia
- Thin bony cortex
- Chondrosarcoma
- Joint contracture
- Scoliosis
- Spontaneous fracture
- Thin ribs
- Abnormal skeletal development
- Increased bone density in skeletal bones
- Laryngeal calcification
- Short long bone
- Squared iliac bones
Laboratory abnormality
- Deficient in vitamin D
- Elevated alkaline phosphatase
- Hydrops fetalis
- Elevated urinary hydroxyproline
- Elevated urine calcium levels
- High blood calcium levels
- Low blood phosphate level
- Elevated circulating parathyroid hormone level
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.
- 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.). PTH1R gene: parathyroid hormone 1 receptor. Retrieved 16 October 2026, from https://dantelabs.com/genes/pth1r
Dante Labs. PTH1R gene: parathyroid hormone 1 receptor [Internet]. [cited 16 October 2026]. Available from: https://dantelabs.com/genes/pth1r
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