Below is a summary for the CTNNB1 gene observed in research publications. This is not meant to take the place of medical advice.

Download the latest quarterly report here. The goal of this report is to share up-to- date data contributed by families. The new report features information from the Children’s Sleep Habits Questionnaire (CSHQ). The CSHQ is a survey that you fill out on your dashboard. If you want to be included in future reports, join Simons Searchlight today!

To view past registry reports go to the bottom of this page and click on the dropdown menu tab labeled “Previous Registry Reports.”


What is CTNNB1-related syndrome?

CTNNB1-related syndrome happens when there are changes to the CTNNB1 gene. These changes can keep the gene from working as it should.

Key Role

The CTNNB1 gene plays a key role in the communication that happens between cells and how cells connect to each other.


Many people who have CTNNB1-related syndrome have:

  • Intellectual disability
  • Speech delay
  • Small head
  • Low muscle tone

Do people who have CTNNB1-related syndrome look different?

People who have CTNNB1-related syndrome can look a little different from others. Appearance can vary and can include some but not all of these features:

  • Thin upper lip
  • Wide-spaced teeth
  • Large nose
  • Fair, thin hair and fair skin

Support Resources



GeneReviews are a great resource to bring to your child’s clinicians. These publications provide a summary of current research on genetic conditions and information on ongoing care.

There is currently no GeneReviews for CTNNB1.


Research Article Summaries

Below, we have summarized research articles about changes in the CTNNB1 gene. We hope you find this information helpful.

The information available about CTNNB1 is limited, and families and doctors share a critical need for more information. As we learn more from children who have a change in this gene, we expect this list of resources and information to grow.

Full versions of published research articles can be found on PubMed. PubMed is a National Institutes of Health (NIH) online database that is free. It has a collection of both medical and scientific research articles. A PubMed search for CTNNB1 articles can be found here.

You can also visit the Simons Foundation’s SFARI Gene website to see information for researchers about this gene.


Dominant β-catenin mutations cause intellectual disability with recognizable syndromic features

Original research article by V. Tucci et al. (2014).

Read the abstract here and the Simons Searchlight summary here.


Diagnostic exome sequencing in persons with severe intellectual disability

Original research article by J. de Ligt et al. (2012).

Read the article here and the Simons Searchlight summary here.


Sporadic autism exomes reveal a highly interconnected protein network of de novo mutations

Original research article by B. O’Roake et al. (2012).

Read the article here and the Simons Searchlight summary here.


Research Opportunities

Simons Searchlight

Help the Simons Searchlight team learn more about CTNNB1 genetic changes by taking part in our research. You can learn more about the project and sign up here.



The University of Washington’s Autism Center seeks to better understand the medical, learning, and behavioral features of people with changes in CTNNB1.

Click here to learn more about this opportunity.


Family Stories

Stories from CTNNB1 families:

Click here to share your family’s story!