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  • Title: Molecular characterisation of chromosome 4p deletions resulting in Wolf-Hirschhorn syndrome.
    Author: Estabrooks LL, Lamb AN, Aylsworth AS, Callanan NP, Rao KW.
    Journal: J Med Genet; 1994 Feb; 31(2):103-7. PubMed ID: 8182713.
    Abstract:
    We present three patients with Wolf-Hirschhorn syndrome with small cytogenetic deletions of 4p16. One case is a de novo translocation and two cases represent de novo deletions. Using molecular techniques we determined the extent of these deletions and attempted to ascertain parental origin. Case 1 had a deletion of 4p16.3 with a breakpoint proximal to D4S10, case 2 had a larger deletion including D4S62 in 4p16.2, and case 3 had the largest deletion which included D4S240, but not the Raf2 locus in 4p16.1. The parental origin of the deletion in case 3 was paternal; the other two cases were indeterminable. Our results show that these three deletions include the currently proposed Wolf-Hirschhorn syndrome critical region within the most distal 2 Mb of 4p16.3 and offer supportive evidence for continuous terminal deletions.
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