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Any Desbuquois dysplasia in which the cause of the disease is a mutation in the CANT1 gene.
Features include always present findings: Excessive inward curvature of the lower spine (hyperlordosis), Round face, Joint hypermobility, and Disproportionate short-limb short stature and others; and very common findings: Radial deviation of the 2nd finger and Short neck. 61 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Bones and joints | 11 | Broad femoral neck, Joint dislocation, Excessive inward curvature of the lower spine (hyperlordosis) |
CANT1 encodes calcium activated nucleotidase 1 (401 aa). Calcium-dependent nucleotidase with a preference for UDP. The order of activity with different substrates is UDP > GDP > UTP > GTP. Highest expression in Cells Cultured fibroblasts (53.0 TPM) and Prostate (51.8 TPM).
Desbuquois dysplasia 1 is caused by mutations in the CANT1 gene on chromosome 17.
CANT1 is classified as a druggable target (Clinically Actionable and Enzyme categories) with score 0.0.
Genetic testing for CANT1 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 9 always present features, 2 very common features, 7 common features.
No clinical trials have been registered for Desbuquois dysplasia 1.
10 publications have been identified in PubMed for Desbuquois dysplasia 1. Research spans Case Report / Case Series (40%), Basic Science / Preclinical (30%), and Review / Meta-Analysis (20%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 4 | 40% |
Data assembled from 6 of 12 sources · Last updated Sep 19, 2026, 4:33 PM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
Common questions about Desbuquois dysplasia 1
Arms and legs | 5 | Radial deviation of the 2nd finger, Medial deviation of the foot, Triangular shaped phalanges of the hand |
Growth and development | 4 | Severe short stature, Disproportionate short-limb short stature, Intrauterine growth retardation |
Brain and nerves | 3 | Intellectual disability, Waddling gait, Depressed nasal bridge |
Muscles | 2 | Low muscle tone (hypotonia), Generalized hypotonia |
Head and neck | 1 | Round face |
Eyes | 1 | Developmental glaucoma |
Lungs and breathing | 1 | Neonatal respiratory distress |
Pregnancy and birth | 1 | Neonatal respiratory distress |
Age of onset: at birth, later in life, adulthood.
3 |
30% |
Research summaries | 2 | 20% |
Disease patterns and progression | 1 | 10% |
Tsujioka Y (2026). [PMID: 42094029](https://pubmed.ncbi.nlm.nih.gov/42094029/). *Mol Syndromol*. [Review / Meta-Analysis]
Thamissarakul S (2026). [PMID: 41675269](https://pubmed.ncbi.nlm.nih.gov/41675269/). *Case Rep Genet*. [Basic Science / Preclinical]
Sai Ramya V (2026). [PMID: 41837231](https://pubmed.ncbi.nlm.nih.gov/41837231/). *JCEM Case Rep*. [Case Report / Case Series]
Öztürk M (2025). [PMID: 40461715](https://pubmed.ncbi.nlm.nih.gov/40461715/). *Eur J Pediatr*. [Epidemiology / Natural History]
Özalp M (2025). [PMID: 40368527](https://pubmed.ncbi.nlm.nih.gov/40368527/). *Taiwan J Obstet Gynecol*. [Case Report / Case Series]
Yamashita R (2025). [PMID: 40141107](https://pubmed.ncbi.nlm.nih.gov/40141107/). *Int J Mol Sci*. [Basic Science / Preclinical]
Daşar T (2025). [PMID: 39618316](https://pubmed.ncbi.nlm.nih.gov/39618316/). *Am J Med Genet A*. [Case Report / Case Series]
Öztürk M (2025). [PMID: 39989222](https://pubmed.ncbi.nlm.nih.gov/39989222/). *Cardiol Young*. [Case Report / Case Series]
Piwar H (2024). [PMID: 39273648](https://pubmed.ncbi.nlm.nih.gov/39273648/). *Int J Mol Sci*. [Review / Meta-Analysis]
Gramegna Tota C (2024). [PMID: 39334831](https://pubmed.ncbi.nlm.nih.gov/39334831/). *Biomolecules*. [Basic Science / Preclinical]