TGFBI gene mutation analysis in a Chinese pedigree of Avellino corneal dystrophy.

ABSTRACT:

Aim

To analyze phenotype and genotype of a Chinese pedigree with Avellino corneal dystrophy (ACD).

Methods

Complete ophthalmic examinations were performed on all the family members. Exons of TGFBI were amplified by polymerase chain reaction, sequenced, and compared with a reference database.

Results

A single heterozygous G>A (R124H) point mutation was identified in exon 4 of TGFBI in three affected members and two unaffected children who were offsprings of the affected members, but not in the other family members.

Conclusion

Mutation R124H in TGFBI was identified in this pedigree and appeared to be the disease causing mutation. Atypical phenotype and low penetrance was observed in this pedigree.

SUBMITTER: Xie AR 

PROVIDER: S-EPMC3340809 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature