Table 1 Rare coding or structural variants identified within CRVEEH66 linkage regions that were assessed for validation and segregation.

From: A 127 kb truncating deletion of PGRMC1 is a novel cause of X-linked isolated paediatric cataract

Structural variants

Linkage region

Variant type

Genomic position (hg19)

Gene/s

Val

Seg

Freq. in controls

Database ID

Xq24–25

Deletion (127 kb)

NC_000023.10:g.118373226_118500408del

PGRMC1 LOC101928336

Yes

Yes

0%

ClinVar:SCV001450779

3q26.31–q26.32

Tandem duplication (364 bp)

NC_000003.11:g.176236711_176237056dup

(intergenic)

Yes

Yes

7.14%

ClinVar:SCV001450780 dbVar:nsv4651094

1q24.2–43

Inversion (104 bp)

NC_000001.10:g.237566103_237566207inv

RYR2

No

1q24.2–43

Complex distal duplication (363 bp)

NC_000001.10:g.240116680_240116681ins[GTGTGTGAG;240116016_240116379inv;CCAG]

(intergenic)

Yes

No

ClinVar:SCV001450781 gnomAD_SV_v2.1:CPX_1_410

SNPs and indels

Linkage region

Gene

Genomic position (hg19)

Nucleotide change

Protein change

Val

Seg

Database ID

1q24.2–43

ERO1B NM_019891.4

NC_000001.10:g.236399100 G > A

c.662 C > T

p.(Ala221Val)

Yes

Yes

ClinVar:SCV001450782 dbSNP:rs966390978

1q24.2–43

RYR2 NM_001035.3

NC_000001.10:g.237656318_237656318insC

c.1893_1894insC

p.(Leu631fs)

No

3q26.31–q26.32

NAALADL2 NM_207015.3

NC_000003.11:g.175189416_175189417delinsA

c.1534-11_1534-10delinsA

Yes

No

ClinVar:SCV001450783 dbSNP:rs1553904048

  1. Coding and protein changes are specific to gene accession reported; Val, validation of variant in proband III:12; Seg, segregation of variant in additional family members; ‘–’, not required. Freq in controls; assessment of structural variants in available DNA control samples (n = 70) Blue Mountains Eye Study cohort [13].