A novel heterozygous deletion within the 3' region of the PAX6 gene causing isolated aniridia in a large family group.
Paired box gene 6 (PAX6) is the causative gene of aniridia. It is a dominantly inherited eye abnormality characterized by partial or complete absence of the iris. The PAX6 gene is located on chromosome 11p13 and contains 14 exons. It is expressed mainly in the developing eye and central nervous system. Submicroscopic copy number variations are common in the human genome. Submicroscopic deletions may cause several human diseases, either by disrupting coding sequences or by eliminating regulatory elements essential for expression of the gene in question. Over the past several years, array-based comparative genomic hybridization has become an increasingly useful tool for both identifying normal cytogenetic variations and characterizing chromosomal abnormalities associated with developmental delays and cancer. Our results support the notion that assessing copy number variation of the PAX6 gene itself and also of flanking regions, may contribute to the molecular diagnosis of aniridia.
Department of Neurosurgery, Van Military Hospital, Van, Turkey. fatih.bayrakli@yale.edu
Fatih
F
Bayrakli
Ilter
I
Guney
Yasar
Y
Bayri
Adife Gulhan
AG
Ercan-Sencicek
Dogan
D
Ceyhan
Tufan
T
Cankaya
Christopher
C
Mason
Kaya
K
Bilguvar
Sengul
S
Bayrakli
Shrikant M
SM
Mane
Matthew W
MW
State
Murat
M
Gunel
D020413:3' Untranslated Regions / Q000235:genetics*; D015783:Aniridia / Q000235:genetics* / Q000473:pathology; D002869:Chromosome Aberrations; D002880:Chromosomes, Human, Pair 11; D003582:Cytogenetics / Q000379:methods; D005136:Eye Proteins / Q000235:genetics*; D005192:Family Health; D005260:Female; D020869:Gene Expression Profiling / Q000379:methods; D020022:Genetic Predisposition to Disease; D018398:Homeodomain Proteins / Q000235:genetics*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods; D000071841:PAX6 Transcription Factor; D051761:Paired Box Transcription Factors / Q000235:genetics*; D012097:Repressor Proteins / Q000235:genetics*; D017384:Sequence Deletion / Q000235:genetics*; D014421:Turkey / Q000453:epidemiology
D020413:3' Untranslated Regions; D005136:Eye Proteins; D018398:Homeodomain Proteins; D000071841:PAX6 Transcription Factor; C000605730:PAX6 protein, human; D051761:Paired Box Transcription Factors; D012097:Repressor Proteins