A novel nonsense mutation in CRYGC is associated with autosomal dominant congenital nuclear cataracts and microcornea
2008

Mutation in CRYGC Linked to Cataracts

Sample size: 13 publication Evidence: moderate

Author Information

Author(s): Zhang Lu, Fu Songbin, Ou Yangshan, Zhao Tingting, Su Yunjuan, Liu Ping

Primary Institution: Harbin Medical University

Hypothesis

To identify a novel mutation in CRYGC associated with congenital cataracts in a Chinese family.

Conclusion

A novel nonsense mutation in CRYGC was found to be associated with autosomal dominant cataracts and microcornea.

Supporting Evidence

  • Linkage analysis showed a LOD score of 2.29 at marker D2S325.
  • The mutation c.470G>A was not found in 100 normal controls.
  • The mutation cosegregated with cataracts in the family.

Takeaway

Scientists found a change in a gene that causes cataracts in some people in a family. This change stops the gene from working properly.

Methodology

Linkage analysis and DNA sequencing were performed on a four-generation family with cataracts.

Limitations

The study was limited to a single family, which may not represent the broader population.

Participant Demographics

Chinese family with four generations, including six affected members.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

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