PMID- 9003495 OWN - NLM STAT- MEDLINE DCOM- 19970220 LR - 20190722 IS - 0340-6717 (Print) IS - 0340-6717 (Linking) VI - 99 IP - 1 DP - 1997 Jan TI - Investigation of deletions at 7q11.23 in 44 patients referred for Williams-Beuren syndrome, using FISH and four DNA polymorphisms. PG - 56-61 AB - Williams syndrome (WS) is associated with a submicroscopic deletion of the elastin gene (ELN) at 7q11.23. The deletion encompasses closely linked DNA markers. We have investigated 44 patients referred for possible WS using fluorescence in situ hybridization (FISH) analysis with a P1 clone containing an insert from the ELN, as well as performing genotype analysis of patients and parents with four DNA polymorphisms. Twenty-four patients were found to have deletions, 19 of whom were found clinically to have typical WS. The facial features were especially characteristic. None of the patients without detectable deletions was reported to have typical WS features, although one had supravalvular aortic stenosis, hypercalcemia, and mental retardation. No evidence was found in this material for variability of the size of the deletion. Our study supports the usefulness of analysis of ELN deletion in WS patients, both for confirmation of diagnosis and for genetic counselling. FAU - Brondum-Nielsen, K AU - Brondum-Nielsen K AD - John F. Kennedy Institute, Glostrup, Denmark. kbn@kennedy.dk FAU - Beck, B AU - Beck B FAU - Gyftodimou, J AU - Gyftodimou J FAU - Horlyk, H AU - Horlyk H FAU - Liljenberg, U AU - Liljenberg U FAU - Petersen, M B AU - Petersen MB FAU - Pedersen, W AU - Pedersen W FAU - Petersen, M B AU - Petersen MB FAU - Sand, A AU - Sand A FAU - Skovby, F AU - Skovby F FAU - Stafanger, G AU - Stafanger G FAU - Zetterqvist, P AU - Zetterqvist P FAU - Tommerup, N AU - Tommerup N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Germany TA - Hum Genet JT - Human genetics JID - 7613873 RN - 9007-49-2 (DNA) RN - 9007-58-3 (Elastin) SB - IM MH - Adolescent MH - Adult MH - Child MH - Child, Preschool MH - Chromosome Banding MH - *Chromosome Deletion MH - Chromosome Mapping MH - *Chromosomes, Human, Pair 7 MH - DNA/chemistry/genetics MH - Dinucleotide Repeats MH - Elastin/*genetics MH - Female MH - Gene Deletion MH - Humans MH - In Situ Hybridization, Fluorescence MH - Infant MH - Karyotyping MH - Male MH - *Polymorphism, Genetic MH - Williams Syndrome/*genetics/physiopathology EDAT- 1997/01/01 00:00 MHDA- 1997/01/01 00:01 CRDT- 1997/01/01 00:00 PHST- 1997/01/01 00:00 [pubmed] PHST- 1997/01/01 00:01 [medline] PHST- 1997/01/01 00:00 [entrez] AID - 10.1007/s004390050311 [doi] PST - ppublish SO - Hum Genet. 1997 Jan;99(1):56-61. doi: 10.1007/s004390050311.