Meyahealth
HomeGeneticsGeneMEGF8 gene
Back to Gene
MEGF8 gene
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Gene

MEGF8 gene

The MEGF8 gene provides instructions for a protein that is thought to play a role in cell adhesion and the patterning of body structures during embryonic development.

Normal Function

The MEGF8 gene provides instructions for making a protein whose function is unclear. Based on its structure, the Megf8 protein may be involved in cell processes such as attaching cells to one another (cell adhesion) and helping proteins interact with each other. Researchers also suspect that the Megf8 protein plays a role in the normal shaping (patterning) of many parts of the body during embryonic development.

Health Conditions Related to Genetic Changes

Carpenter syndrome

At least six mutations in the MEGF8 gene have been found to cause Carpenter syndrome, a condition characterized by:

  • Irregular skull formation
  • Finger and toe abnormalities
  • Various other developmental features

These mutations reduce or eliminate the function of the Megf8 protein. Researchers suspect that the amount of protein function retained may contribute to the variability in signs and symptoms. The mutations likely interfere with the normal patterning of many parts of the body, contributing to the features of this disorder.

Frequently Asked Questions

The severity of Carpenter syndrome is often linked to the amount of functional Megf8 protein retained. Mutations that completely eliminate protein function tend to result in more severe developmental abnormalities, while those that reduce but do not eliminate function may lead to a milder phenotype. This variability explains why individuals with the same diagnosis can present with different combinations of skull, finger, and toe abnormalities.
Carpenter syndrome caused by MEGF8 mutations is inherited in an autosomal recessive pattern. This means an individual must inherit two non-working copies of the gene, one from each parent, to develop the condition. Parents who are carriers typically have one working copy and one non-working copy, so they usually do not show signs or symptoms of the disorder.
Yes, genetic testing can identify specific pathogenic variants in the MEGF8 gene that cause Carpenter syndrome. If a child presents with characteristic physical features such as craniosynostosis (premature fusion of skull bones) and brachydactyly (short fingers and toes), clinicians may order sequencing of the MEGF8 gene to confirm the diagnosis and rule out other similar conditions.
The Megf8 protein is thought to play a critical role in cell adhesion and the patterning of body structures during embryonic development. When mutations interfere with this function, the normal shaping of bones and tissues is disrupted. This leads to the irregular skull formation and limb abnormalities seen in Carpenter syndrome, as the cells fail to organize correctly during early growth.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

Meyahealth

Ⓒ 2026. All rights reserved by MEYA

About UsTerms & PolicyFAQ