39 The two mutations p.G210V and p.R208W have been already identified (13,14).

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ABCA3 p.Gly210Val 22068586:39:20

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41 Analysis of genomic DNA from the parents and kindred showed that the compound heterozygous p.R1583W/ p.S128Rfs (Fig. 1A) and p.R208W/p.R1521W (Fig. 1B) mutations were inherited, as well as the homozygous mutations p.T1173R (Fig. 1C) and p.D253H (Fig. 1D).

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ABCA3 p.Gly210Val 22068586:41:20

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54 Genetic analysis results in the 10 children harboring homozygous and compound heterozygous (shaded) or heterozygous ABCA3 mutations Patient NRD Clinical outcome ABCA3 mutation ABCA3 SNPs ABCA3 variants cDNA level Protein level dbSNPs rs# cluster id Missense variants in conserved amino acid 1 Yes ILD c.[3518C.G] + [3518C.G] p.[T1173R] + [T1173R] rs149532, rs13332514 2 Yes ILD c.[757G.C] + [757G.C] p.[D253H] + [D253H] 3 Yes Death c.[1385T.G] + [2890G.A] p.[L462R] + [G964S] rs149532 4 Yes Death c.[4747C.T] + c.[384delC] p.[R1583W] + p.[S128Rfs] rs149532 c.[450G.A] (het) 5 No Death c.[629G.T] + [3079G.C] p.[G210V] + [A1027P] rs149532 6 Yes ILD c.[622C.T] + [4561C.T] p.[R208W] + [R1521W] rs149532, rs323043 7 Yes Death c.[604G.C] + [907C.G] p.[G202R] + [L303V] rs149532, rs323043 (het), rs13332514 8 Yes Death c.[2888A.G] + [?]

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ABCA3 p.Gly210Val 22068586:54:611

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56 Genetic analysis results in the 10 children harboring homozygous and compound heterozygous (shaded) or heterozygous ABCA3 mutations Patient NRD Clinical outcome ABCA3 mutation ABCA3 SNPs ABCA3 variants cDNA level Protein level dbSNPs rs# cluster id Missense variants in conserved amino acid 1 Yes ILD c.[3518C.G] + [3518C.G] p.[T1173R] + [T1173R] rs149532, rs13332514 2 Yes ILD c.[757G.C] + [757G.C] p.[D253H] + [D253H] 3 Yes Death c.[1385T.G] + [2890G.A] p.[L462R] + [G964S] rs149532 4 Yes Death c.[4747C.T] + c.[384delC] p.[R1583W] + p.[S128Rfs] rs149532 c.[450G.A] (het) 5 No Death c.[629G.T] + [3079G.C] p.[G210V] + [A1027P] rs149532 6 Yes ILD c.[622C.T] + [4561C.T] p.[R208W] + [R1521W] rs149532, rs323043 7 Yes Death c.[604G.C] + [907C.G] p.[G202R] + [L303V] rs149532, rs323043 (het), rs13332514 8 Yes Death c.[2888A.G] + [?]

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ABCA3 p.Gly210Val 22068586:56:611

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45 Five patients eventually Table 1 Characteristics of nine children with ABCA3 mutations Patient no Age of onset, manifestation Clinical features (age at evaluation) CT imaging (age at examination) Mutational analysis Outcomes (current age) 1 Newborn, respiratory failure Ta, Cr, Wh, Cl, Hy (4 years) GGO, ST, PE (2 weeks) Nt622C.T (R208W) Nt2279T.G (M760R) Transplanted (died) (5 years)* 2 Newborn, respiratory failure Ta, Hy (1 month) None Nt289insA Nt4648C.T (R1550W) Transplanted (died) (3 months)* 3 3 months, acute respiratory distress Ta, FTT, Hy (3 months) GGO, ST (3 months) Nt2646insC Nt3757C.T (P1253S) Died (4 months)* 4 2 years, acute respiratory distress Ta, Cr, Cl, FTT, Hy (2 years) GGO, ST, PE (2 years) Nt4732G.A (E1578K) Nt4772A.C (Q1591P) Alive, ILD score 4 (15 years) 5 1 year, recurrent hypoxaemia Ta, Cl, FTT, Hy (3 years) GGO, ST, PE, cysts (2 years) Nt59G.T (R20L) Nt2879T.C (L960S) Alive, ILD score 4 (8 years) 6 Newborn, pneumonia Ta, Cr, Cl, FTT, Hy (10 years) GGO, ST, PE (4 years) Nt875A.T (E292V) Nt3341C.T (T1114M) Transplanted (alive) (12 years)* 7 Newborn, respiratory failure Ta, Cl, FTT (6 years) GGO, ST, PE, cysts (6 years) Nt875A.T (E292V) Nt4706delTCA (deltaI1569) Alive, ILD score 1 (18 years) 8 Newborn, pneumonia Ta, Cr, Cl, Hy (6 years) GGO, PE (6 years) Nt629G.T (G210V) Nt3609delCTT (deltaF1203) Alive, ILD score 3 (11 years) 9 4 years, recurrent hypoxaemia Ta, Cr, Hy (exertional) (8 years) GGO, ST (7 years) Nt128G.A (R43H) Nt1609 in/del (end exon 13) Alive, ILD score 2 (13 years) Ta, tachypnoea; Cr, crackles; Wh, wheezing; Cl, clubbing; Hy, hypoxaemia; FTT, failure to thrive; GGO, ground-glass opacification; ST, septal thickening; PE, pectus excavatum.

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ABCA3 p.Gly210Val 18024538:45:1307

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