Table 1

Summary of clinical findings and patient genotypes

FamilyPatientStatusAge (years)Visual acuity OD-OSPhotopic (cone) ERGSequence variants
CNGA3 CNGB3
*Substitutions at non-conserved residues that are unlikely to be disease associated (see text).
Family 12 has additional 5′UTR and Asn27Ser mutations in CNGB3 as discussed in the Results section.
N, normal; A, affected individuals.
1RM1A106/60–6/60Absent1148delC/595delG
RM2A83/60–3/60Absent1148delC/595delG
RM3N281148delC/+
RM4N266/6–6/6595delG/+
2RM5A386/60–6/60Absent1148delC/1148delC
3RM6A396/60–3/60AbsentArg223Trp/?
RM7A286/60–6/60AbsentArg223Trp/?
4RM8A166/60–6/60AbsentThr245Met/?*
RM9N43Thr245Met/+
5RM10A443/60–3/60Absent1148delC/?
RM11N701148delC/+
6RM12A156/36–6/36AbsentGly548Arg/Gly548Arg
7RM13A93/60–3/60AbsentArg23Stop/Arg23Stop
RM14N376/6–6/6Arg23Stop/+
RM15N526/6–6/6Arg23Stop/+
8RM16A196/60–6/60AbsentGln196Stop/Gln196Stop
RM17N40Gln196Stop/+
9RM18A266/36–6/36Absent1443insC/Arg569His
10RM19A196/36–6/36AbsentArg221Stop/Arg221Stop
11RM20A146/60–6/60Absent1148delC/1148delC
RM21A206/60–6/60Absent1148delC/1148delC
RM22N501148delC/+
RM23N551148delC/+
12RM24A123/60–3/60AbsentArg436Trp/?
RM25N436/6–6/6Arg436Trp/+
RM26N40+/?
13RM27A346/36–6/36AbsentPhe525Asn/Phe525 Asn
RM28A366/36–6/36AbsentPhe525Asn/Phe525 Asn
RM29N61Phe525Asn/+
RM30N59Phe525Asn/+
14RM28A56/60–6/60Absent1148delC/1148delC
15RM29A66/60–6/60AbsentPhe547Leu/Phe547Leu
16RM30A26/60–6/60Absent1148delC/1148delC
17RM31A246/60–6/60Absent1148delC/1148delC
18RM32A56/60–6/60AbsentPhe547Leu/Phe547Leu
19RM33A126/60–6/60AbsentIle307Val/?*
RM34N30Ile307Val/+
20RM35A126/60–3/60AbsentNo mutations detected
21RM36A326/60–6/60AbsentNo mutations detected
22RM37A416/60–6/60AbsentNo CNGA3 or CNGB3 mutations detected.
RM38A206/60–6/60AbsentGNAT2 mutation identified.10
RM39N336/6–6/6