Refined genotype-phenotype correlations in cases of chromosome 6p deletion syndromes.
Clinical reports of cases with deletions in chromosome 6p are relatively rare. We present a detailed study by fluorescent in situ hybridisation (FISH) of six new cases with distinct but overlapping 6p deletions involving the 6p24-pter chromosomal segment. Chromosomal breakpoints in individual cases were investigated using a large panel of probes previously mapped and characterised in our laboratory to cover the distal region of 6p. These cases have allowed refinement of genotype-phenotype correlations and strongly suggest a gene involved in regulating the development of hearing is localised within 6p25. There is also evidence for one or more loci involved in heart, skeletal and craniofacial development in the 6p24-p25 region. Furthermore, the Dandy-Walker malformation is associated with deletion of 6p24-pter.
Mirza
Ghazala
G
Wellcome Trust Centre for Human Genetics, University of Oxford, Department of Genomics, Roosevelt Drive, Headington, Oxford OX3 7BN, UK.
Williams
Ruth R
RR
Mohammed
Shela
S
Clark
Robin
R
Newbury-Ecob
Ruth
R
Baldinger
Shari
S
Flinter
Frances
F
Ragoussis
Jiannis
J
D000015:Abnormalities, Multiple / Q000235:genetics*; D001842:Bone and Bones / Q000002:abnormalities; D002872:Chromosome Deletion; D025063:Chromosome Disorders / Q000235:genetics*; D002896:Chromosomes, Human, Pair 6 / Q000235:genetics*; D019465:Craniofacial Abnormalities / Q000473:pathology; D005260:Female; D005819:Genetic Markers; D005838:Genotype; D006311:Hearing Disorders / Q000473:pathology; D006330:Heart Defects, Congenital / Q000473:pathology; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010641:Phenotype
D005819:Genetic Markers