TABLE 1.
The genotype and phenotype of ARS patients with FOXC1 mutations or gross deletions of 6p25.
| No./Sex/Diagnosis age | Family history a | Ocular manifestation | Systemic manifestation | Nucleotide changes b | Amino acid changes | Tape of mutation | SIFT/PolyPhen2/Provean | Segregation | ACMG category | Previous literature |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/M/15y | Yes | PE, iridocorneal adhesions, IH, corectopia, GL | — | c.205delC | p.P69Rfs*8 | Frameshift | NA | Familial; Father/Mother/Brother+ | P | Novel |
| 2/F/22y | No | PE, iridocorneal adhesions, GL, high myopia | CHD | c.236C > T | p.P79 L | Missense | Damaging/PD/Deleterious | Sporadic; Father/Mother- | LP | Ref Nishimura et al. (2001) |
| 3/M/4m | No | PE, iridocorneal adhesions, IH, GL (OD), corneal opacification (OD) | — | c.240_241insTAT | p.Y81_S82insY | Insertion | NA | Sporadic; Father/Mother+ | P | Novel |
| 4/F/14y | Yes | PE, iridocorneal adhesions, IH, corectopia, GL | — | c.246C > G | p.S82R | Missense | Damaging/PD/Deleterious | Familial; Father + Mother/ | LP | Novel |
| 5/M/5y | No | PE, IH, corectopia, polycoria, GL, nystagmus, amblyopia | — | c.247T > C | p.Y83H | Missense | Damaging/PD/Deleterious | Sporadic; Father- Mother- | LP | Novel |
| 6/M/7m | No | PE, iridocorneal adhesions, corectopia, GL, CLDO | — | c.257T > C | p.L86P | Missense | Damaging/PD/Deleterious | Sporadic; Father- Mother- | LP | Novel |
| 7/M/12y | No | PE, iridocorneal adhesions, IH, GL, keratoconus, corneal decompensation, cataract | — | c.275A > C | p.Q92P | Missense | Damaging/PD/Deleterious | Sporadic; Father- Mother- | LP | Novel |
| 8/M/7m | No | PE, iridocorneal adhesions, IH, GL, corneal decompensation | CHD | c.364T > G | p.W122G | Missense | Damaging/PD/Deleterious | Sporadic; Father + Mother/ | VUS | Novel |
| 9/M/1m | Yes | PE, iridocorneal adhesions, IH, ectropion uvea, GL | — | c.380G > A | p.R127H | Missense | Damaging/PD/Deleterious | Familial; Father- Mother+ | LP | Ref Kawase et al. (2001) |
| 10/F/3m | Yes | PE, iridocorneal adhesions, GL, corneal decompensation | — | c.380G > A | p.R127H | Missense | Damaging/PD/Deleterious | Familial; Father + Mother- | LP | Ref Kawase et al. (2001) |
| 11/M/1m | No | PE, iridocorneal adhesions, GL, corneal opacification | — | c.388C > T | p.L130F | Missense | Damaging/PD/Deleterious | Sporadic; Father- Mother- | P | Ref Strungaru et al. (2007) |
| 12/M/1m | Yes | Iridocorneal adhesions, ectropion uvea, GL, corneal opacification | CHD | c.392C > T | p.S131L | Missense | Damaging/PD/Deleterious | Familial; Father + Mother/ | LP | Ref Nishimura et al. (1998) |
| 13/F/15y | Yes | PE, iridocorneal adhesions, GL | — | c.399C > G | p.N133K | Missense | Damaging/PD/Deleterious | Familial; Father- Mother/ | VUS | Novel |
| 14/F/9y | Yes | PE, iridocorneal adhesions, IH, GL, corneal opacification | — | c.430A > T | p.K144X | Nonsense | NA | Familial; Father- Mother/ | LP | Novel |
| 15/M/15y | Yes | PE, iridocorneal adhesions, IH, corectopia, polycoria, ectropion uvea, GL | — | c.482T > A | p.M161K | Missense | Damaging/PD/Deleterious | Familial; Father/Mother/ | VUS | Ref Panicker et al. (2002) |
| 16/F/8m | No | PE, iridocorneal adhesions, GL, corneal opacification | — | c.513_518del | p.R172_R173del | Deletion | NA | Sporadic; Father + Mother- | P | Novel |
| 17/M/2m | Yes | Iridocorneal adhesions, IH, corectopia, polycoria, GL | — | c.592_593delinsC | p.G198Pfs*117 | Frameshift | NA | Familial; Father + Mother/ | P | Novel |
| 18/F/18y | Yes | PE, iridocorneal adhesions, GL | — | c.718_719del | p.L240Vfs*64 | Frameshift | NA | Familial; Father/Mother + Sister+ | P | Ref Cella et al. (2006) |
| 19/F/40y | No | PE, iridocorneal adhesions, GL, ectropion uvea | Hearing loss | c.1540delC | p.Q514Rfs*4 | Frameshift | NA | Sporadic; Father/Mother/ | P | Novel |
| 20/F/2m | No | PE, iridocorneal adhesions, GL, corneal opacification | CA | Gross deletion in 6:1478641–2694750 | NA | Deletion | NA | Sporadic; Father/Mother/ | P | Novel |
| 21/M/5m | Yes | PE, iridocorneal adhesions, GL | CHD; GD; hydrocephalus | Gross deletion in 6:382441–2333070 | NA | Deletion | NA | Familial; Father/Mother/ | P | Novel |
Note: Family history refers to first-degree relatives having glaucoma or ARS.
FOXC1 variants were analyzed according to transcript NM_001453.2. Novel variants are shown in bold.
Abbreviations: ACMG, American College of Medical Genetics and Genomics; CA, Craniofacial abnormalities; CLDO, Congenital nasolacrimal duct obstruction; CHD, Congenital heart disease; F, Female; GD, Growth disorder; GL, Glaucoma; IH, Iris hypoplasia; LP, Likely pathogenic; M, Male; NA, Not applicable; OD, Right eye; P, Pathogenic; PD, Probably damaging; PE, Posterior embryotoxon; VUS, Variant of uncertain significance; + , positive for the variant; − , negative for the variant; / , not available for testing.