Table 2. Fundus autofluorescence type II patients. Pathogenic variants in the ABCA4 gene and clinical data.
Pt | S |
Pathogenic variants |
Visual acuity |
Age of onset/ data collect/ disease duration (years) | |||
---|---|---|---|---|---|---|---|
Allele 1 |
Allele 2 |
||||||
Nucleotide change | Protein change | Nucleotide change | Protein change | RE LE | |||
3• |
F |
c.4926C>G |
p.Ser1642Arg |
c.2791G>A |
p.Val931Met |
20/150
20/150 |
14/37/23 |
c.5044_5058del15‡ |
p.Val1682_Val1686del‡ |
|
|
||||
5 |
F |
c.3898C>T |
p.Arg1300* |
c.1804C>T |
p.Arg602Trp |
20/200
20/200 |
7/17/10 |
8 |
F |
not detected |
|
not detected |
|
20/400
20/400 |
32/44/12 |
11 |
M |
c.6079C>T |
p.Leu2027Phe |
not detected |
|
FC1m
20/200 |
12/24/12 |
12• |
M |
c.4328G>A |
p.Leu541Pro |
c.2743G>A |
p.Asp915Asn |
20/200
20/200 |
8/13/5 |
c.1622T>C |
p.Arg1443His |
|
|
||||
16 |
M |
c.4720G>T |
p.Glu1574* |
not detected |
|
20/150
20/200 |
6/38/32 |
18 |
M |
c.634C>T |
p.Arg212Cys |
c.1804C>T |
p.Arg602Trp |
20/400
20/400 |
6/31/25 |
19 |
M |
c.634C>T |
p.Arg212Cys |
c.1804C>T |
p.Arg602Trp |
FC1.5m
FC1.5m |
11/26/15 |
21 |
M |
c.3386G>T |
p.Arg1129Leu |
not detected |
|
20/150
20/150 |
16/32/16 |
22• |
M |
c.4926C>G |
p.Ser1642Arg |
c.4340A>T |
p.Glu1447Val |
20/200
FC2m |
8/10/2 |
c.5044_5058del15‡ |
p.Val1682_Val1686del‡ |
|
|
||||
29 |
F |
c.223T>G |
p.Cys75Gly |
c.6088C>T |
p.Arg2030* |
N/A
N/A |
8/16/8 |
32 |
M |
c.455G>A |
p.Arg152Gln |
not detected |
|
20/30
FC10cm |
36/39/3 |
46 |
F |
c.5461–10T>C |
p.[Thr1821Valfs*13, Thr1821Aspfs*6] |
c.1804C>T |
p.Arg602Trp |
20/200
20/200 |
9/10/1 |
47• |
F |
c.1622T>C |
p.Leu541Pro |
c.286A>G |
p.Asn96Asp |
20/400
20/400 |
7/26/19 |
c.4328G>A |
p.Arg1443His |
|
|
||||
50• |
M |
c.1804C>T |
p.Arg602Trp |
c.5381C>A |
p.Ala1794Asp |
20/400
20/400 |
15/31/16 |
26 | F | c.5714+5G>A | p.? | not detected | 20/80 20/80 | 9/14/5 |
Pt, Patient; S, Sex; N/A, not available; FC, Finger counting.• Segregation analysis performed ‡c.5044_del15bp, nonframeshift deletion (c.5044_5058delGTTGCCATCTGCGTG).Families: Siblings: 18 and 19.