nonsyndromic congenital nail disorder 4

Summary
Synonym
  • HYPONYCHIA CONGENITA
  • anonychia congenita
Definition
A nonsyndromic congenital nail disorder that is characterized by complete absence or severe hypoplasia of all fingernails and toenails without significant bone anomalies, and that has_material_basis_in homozygous or compound heterozygous mutation in the R-spondin-4 gene on chromosome 20p13.
Super Class
autosomal recessive disease nonsyndromic congenital nail disorder
Disease Ontology
DOID:0080082
Mondo Disease Ontology
MeSH
GARD
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
343637 RSPO4 R-spondin 4
Related Glycoprotein
Displaying 1 entry
UniProt ID Protein Name Source
Q2I0M5 R-spondin-4

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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01


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Last updated: December 8, 2025