Gene
ANKH
ANKH inorganic pyrophosphate transport regulator
- HGNC 15492↗(opens in a new tab)
- Ensembl gene ENSG00000154122↗(opens in a new tab)
- NCBI Gene 56172↗(opens in a new tab)
Summary
- Cytogenetic location
- 5p15.2
- Coordinates
- Chromosome 5: 14,704,800–14,871,778 (GRCh38)
- Exons
- 12 exons across 167 kb
- Protein
- 492 amino acids
- Inheritance
- Autosomal dominant
- Also known as
- HANK, ANK, CPPDD, SLC62A1
- Previous symbols
- CCAL2, CMDJ
- MANE Select transcript
- ENST00000284268.8NM_054027.6
- Locus type
- gene with protein product
- Very high
- Confident
- Low
- Very low
Reference genomeGRCh38hg38
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Inherited Arthropathies
- Familial chondrocalcinosis (CCAL2)Autosomal dominant
Early-onset calcium pyrophosphate crystal deposits in joint cartilage causing pseudogout attacks and arthritis, caused by variants in ANKH.
- 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 ANKH 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 8.2 kb of the gene's 167 kb; 1,479 of those bases code for the protein.
How a genome test reads ANKH
6
positions in ANKH 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 167 kb of ANKH, introns included, not only the 8.2 kb of exons.
Traits linked to ANKH
The Human Phenotype Ontology lists these as features of the rare conditions ANKH can cause. Each trait's page lists the other genes linked to it.
Abnormality of head or neck
- Bad bite
- Big calvaria
- Bony paranasal bossing
- Broad forehead
- Corners of eye widely separated
- Delayed eruption of baby teeth
- Delayed eruption of permanent teeth
- Delayed pneumatization of the mastoid process
Show 20 more traits
- Dense bone of skull base
- Enlargement of skull bones
- Epiblepharon
- Frontal bossing
- Gum enlargement
- Increased size of gum ridge
- Increased thickness of skull cap
- Long face
- Prominence of cheekbone
- Prominent nasal bridge
- Wide nasal bridge
- Bell's palsy
- Depressed nasal bridge
- Enlargement of craniofacial bones
- Big lower jaw
- Dental crowding
- Narrowing of the rear opening of the nasal cavity
- Abnormal dental position
- Blockage of nose
- Calvarial osteosclerosis
Abnormality of the ear
- Ears rotated toward back of head
- Low-set ears
- Mixed hearing impairment
- Narrow internal auditory canal
- Ringing in ears
- Hearing impairment
- Conductive deafness
- Sensorineural hearing impairment
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.). ANKH gene: ANKH inorganic pyrophosphate transport regulator. Retrieved 17 October 2026, from https://dantelabs.com/genes/ankh
Dante Labs. ANKH gene: ANKH inorganic pyrophosphate transport regulator [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/ankh
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