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Table 2 SHANK3 and IB2 variants in PMS patients (n = 14)

From: Autism spectrum disorder in Phelan-McDermid syndrome: initial characterization and genotype-phenotype correlations

Sample

Size of 22q13 terminal deletion (Mb)

Variant

Effect

Per question average score in the social communication domain (ADI-R)

Per question average score in the restricted and repetitive behavior, interests and activities domain (ADI-R)

Average Vineland II standard score

Notes

cms 20176a, cms16938, cms16941, cms13591, cms13583, cms13569, cms14279, cms13562

3.33035, 3.222768a,4.493653, 4.807163, 8.65534, 5.227017, 7.031477, 6.496731

SHANK3 c.1612 + 18C > T (Intron 13)

Possible splice effect (reduced splice acceptor site affinity)

M = 1.18, (SD = 0.45)

M = 0.47 (SD = 0.27)

M = 52.3 (SD = 11.05)

rs1557620 C: 81 % T: 19 % (TT: 5.9 %) 1000 genomesC: 80.5 % T: 19.5 % (TT: 4.1 %) NHLBI

cms13661

9.183577

SHANK3 c.1304 + 48C > T (Intron 10)

Lost 1 CpG

1.62

0.25

33

rs76224556 C: 98 %, T: 2 % (TT: 0.1 %) 1000 genomes C: 98.3 %, T: 1.7 % (TT: 0.04 %) NHLBI

cms13583

8.65534

IB2 c.594G > A (Exon 5) and SHANK3 c.1612 + 18C > T (Intron 13)

p.Ser198Ser and Possible splice effect (reduced splice acceptor site affinity)

0.62

0.5

40

Novel

cms13465, cms13436, cms13459, cms24824, cms20670

4.848708, 2.79066, 3.088414, 6.718459, 0.219087

None

N/A

M = 0.99 (SD = 0.51)

M = 0.52 (SD = 0.47)

M = 58.7 (SD = 13.6)

N/A

  1. aPatient also has 0.652424 Mb duplication in 22q13 region