Table 1 Seventeen variants found in fourteen patients with unknown clinical diagnosis.

From: Diagnostic yield of panel-based genetic testing in syndromic inherited retinal disease

Variant

Type of variant

Patient phenotype

Publications if published

MVK NM_000431.2:c.380C>T p.(Pro127Leu) hom

Missense

HP:0001263 global developmental delay; HP:0000365 hearing impairment/loss; HP:0000821 hypothyroidism; HP:0001508 failure to thrive; HP:0001410 decreased liver function; HP:0000548 cone/cone-rod dystrophy

Published by our group (same patient): [16]

MVK NM_000431.2:c.630G>A p.(Trp210Ter) het,

Nonsense

HP:0010978 abnormality of immune system physiology; HP:0000510 retinitis pigmentosa;

Novel

MVK c.1129G>A p.(Val377Ile) het

Missense

[38, 39]

KIF11 NM_004523.3:c.478_479delCT p.(Leu160ValfsTer5) het

Frameshift deletion

HP:0000252 microcephaly; HP:0011968 feeding difficulties; HP:0001263 global developmental delay; HP:0007973 retinal dysplasia; HP:0007773 vitreoretinopathy

Published by our group (same patient): [16]

BBS1 NM_024649.4:c.1110G>A p.(Pro370Pro) Hom.

Synonymous

HP:0000662 nyctalopia; HP:0000510: rod-cone dystrophy; HP:0001249 intellectual disability

[40]

BBS1 NM_024649.4:c.1169T>G p.(Met390Arg) Hom

Missense

HP:0000510 rod-cone dystrophy; HP:0010442 polydactyly; HP:0002099 asthma; HP:0100502 Vitamin B12 deficiency

[41, 42]

OTX2 NM_021728.2:c.811delA p.(Thr271LeufsTer31) het

Frameshift deletion

HP:0001250 seizures; HP:0000545 myopia; HP:0000510 retinitis pigmentosa; HP:0000662 nyctalopia; HP:0007663 reduced visual acuity; HP:0000518 cataract; HP:0000639 nystagmus

Novel

IFT140 NM_014714.3:c.998G>A p.(Cys333Tyr) homozygous

Missense

HP:0001251 cerebellar ataxia;HP:0000510 retinitis pigmentosa

[43, 44]

Genes associated with isolated retinal dystrophy

GNAT2 NM_005272.3:c.605G>A p.(Gly202Glu) hom

Missense

HP:0000750 delayed speech and language development; HP:0000548 cone/cone-rod dystrophy

Published by our group (same patient): [16]

CNGA3 NM_001298.2:c.560T>C p.(Ile187Thr) hom.

Missense

HP:0001249 intellectual disability; HP:0000548 cone/cone-rod dystrophy

Published by our group (same patient): [16]

TRPM1 NM_002420.5:c.2951G>A p.(Arg984His) Het;

Missense

HP:0001249 intellectual disability;HP:0000708 behavioural abnormality;HP:0007642 congenital stationary night blindness

[45]

microarray identified a 15q13.3 microdeletion reported in the loss of the TRPM1 gene: NM_002420.5:c.(?_−1)_(*1_?)del

Microdeletion

[19]

PROM1 NM_006017.2:c.1354dupT p.(Tyr452Leufs*13) hom

Frameshift duplication

HP:0001251 ataxia;HP:0000556 retinal dystrophy

[46, 47]

PRPF3 NM_004698.2:c.1285G>T p.(Asp429Tyr) het

Missense

HP:0002652 skeletal dysplasia;HP:0000510 retinitis pigmentosa

Novel

EYS NM_001142800.1:c.8133_8137del p.(Phe2712CysfsTer33) het

Frameshift deletion

HP:0001513 obesity;HP:0000510 retinitis pigmentosa;

[48]

EYS NM_001142800.1:c.8816G>C p.(Cys2939Ser) het

Missense

Novel

USH2A c.6670G>T p.(Gly2224Cys) het

Missense

HP:0001249 intellectual disability; HP:0000510 retinitis pigmentosa

[49]

USH2A NM_206933.2:c.10342G>A p.(Glu3448Lys) het

Missense

[50]

  1. Hom homozygous, com. Het. compound heterozygous