Research Article

SNP Microarray in FISH Negative Clinically Suspected 22q11.2 Microdeletion Syndrome

Table 5

Details of LOH/AOH detected with known UPD (uniparental disomy) disorder in suspected 22q11.2 microdeletion.

DBNCytobandSize (mb)Gene numberUPD disorderGenesRemarks (associated CNVs and LOH/AOH)

1711q13.4-q14.112.396Dysmorphism and mental retardationUnknownOne benign () CNV of 8 (p23.3-p23.2)
Two LOH/AOH of chromosome 11

4514q32.23.011Kagami-Ogata syndrome/Temple syndrome DLK1, GTL2, RTL1, and so forthNo CNV
No other LOH/AOH

756p22.3-p22.1 7.4112Diabetes mellitus, transient neonatal, 1ZFP57No CNV
No other LOH/AOH
p21.33 p21.32

837p12.2-p11.27.329Silver-Russell syndrome (7p11.2-p13)GRB10One benign () CNV (20q13.33)
Multiple LOH/AOH of other chromosomes

976q24.2-q25.18.249Transient neonatal diabetes mellitus and isolated cleft lip and palate PLAGL1 Two uncertain () CNVs (15q11.2)
One likely benign () CNV (10q22.3)
One LOH/AOH of 16p13.11-p12.3

1107q31.32-q3520167Silver-Russell syndrome (7q31-qter)MEST One likely benign () CNV (15q11.2)
Multiple LOH/AOH of chromosome 7 and other chromosomes

12811p15.44.1552Beckwith-Wiedemann syndromeā€‰No CNV
Multiple LOH/AOH of same/other chromosomes

22011p15.5-p15.43.5ā€‰Beckwith-Wiedemann syndrome CDKN1COne benign () CNV 19p12-p11
Multiple LOH/AOH of other chromosomes

227a15q11.2 q124.8701Prader-Willi/Angelman syndrome SNRPN, SNORD116, UBE3ANo associated CNVs
Multiple LOH/AOH of other chromosomes

227b11q24.2 q24.3 5.9901Dysmorphism and mental retardation UnknownNo associated CNVs
Multiple LOH/AOH of other/same chromosomes
q25

DBN: database number.