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. 2015 Aug 15;6(3):110–134. doi: 10.1159/000438812

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Published cases of inherited recessive mutations unmasked by hemizygosity due to a de novo deletion

Phenotype of proband Unmasked gene Gene location SNV Parental origin of SNV Chromosomal location Deletion size, Mb Parental origin of de novo deletion Reference
Prader-Willi syndrome; oculocutaneous albinism OCA2 15q12-q13.1 p. Val443Ile; c. 1327G>A mother is heterozygous carrier del(15)(q11.2q13.1) nd paternal Lee et al., 1994

VCF/DiGeorge syndrome; Bernard-Soulier syndrome GP1BB 22q11.21 c. −133C>G nd del(22)(q11.2q11.2) nd nd Ludlow et al., 1996

MR, retinoblastoma + Wilson disease ATP7B 13q14.3 nd maternal del(13)(q14.2q21.1) nd paternal Riley et al., 2001

Smith-Magenis syndrome; sensorineural hearing loss MYO15A 17p11.2 p. Thr2205Ile; c. 6614C>T mother is heterozygous carrier del(17)(p11.2p11.2) nd paternal Liburd et al., 2001

Angelman syndrome; oculocutaneous albinism OCA2 15q12-q13.1 c. 647-?_807+?del (deletion of exon 7) father is heterozygous carrier del(15)(q11.2q13.1) ∼5 maternal Fridman et al., 2003

Williams syndrome; chronic granulomatous disease NCF1 7q11.23 p. Tyr26fs; c. 75-76del nd del(7)(q11.23q11.23) nd nd Kabuki et al., 2003

Sotos syndrome; reduced coagulation factor 12 activity F12 5q35.3 c. −4C>T (rs1801020) nd del(5)(q35.3q35.3) 2.2 nd Kurotaki et al., 2005

22q11 del syndrome; psychotic disorder COMT 22q11.21 p. Val158Met; c. 472G>A nd del(22)(q11.2q11.2) nd nd Gothelf et al., 2005

Wolf-Hirschhorn syndrome; Wolfram syndrome WFS1 4p16.1 p. Gln366X; c. 1096C>T mother is heterozygous carrier inv dup del(4) (:p15.33→p16.1::p16.1→qter) 8.3 paternal Flipsen-ten Berg et al., 2007

22q13 del syndrome; metachromatic leukodystrophy ARSA 22q13.33 p. Pro426Leu c. 1277C>T nd del(22)(q13.2qter).ish cgh dup(13)(q22qter) ∼8 nd Bisgaard et al., 2009

Werner syndrome WRN 8p12 p. Tyr57X; c. 171C>G nd del (8)(p12p12) 0.553 nd Friedrich et al., 2010