Phenotype: Epidermolysis bullosa dystrophica, autosomal recessive


OMIM: 226600
Inheritance: Autosomal recessive
Classification: Congenital malformations, deformations and chromosomal abnormalities

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COL7A1 || c.2304_2305insTT2305_2315del

Gene/Locus:    COL7A1
Dna Change:    c.2304_2305insTT2305_2315del
Protein Change:    p.Val769LeufsX1
Mutation Type:    Indel
Mutation Effect:    Frameshift
Location:    exon 17
Transcript:    NM_000094.3

PopulationEthnic GroupRegionMutation FrquencyCoalescence TimeReference
TunisiaNASouthern62 % of mutated alleleNABen Brick AS et al., 2013Ben Brick AS, Laroussi N, Mesrati H, Kefi R, Bchetnia M, Lasram K, Ben Halim N, Romdhane L, Ouragini H, Marrakchi S, Boubaker MS, Meddeb Cherif M, Castiglia D, Hovnanian A, Abdelhak S, Turki H, . Mutational founder effect in recessive dystrophic epidermolysis bullosa families from Southern Tunisia.. Arch. Dermatol. Res.. 2013; 0(0):

COL7A1 || c.6527dupC (c.6527insC)

Gene/Locus:    COL7A1
Dna Change:    c.6527dupC (c.6527insC)
Protein Change:    p.Gly2177TrpfsX113
Mutation Type:    Insertion
Mutation Effect:    Frameshift
Location:    exon 80
Transcript:    NM_000094.3

PopulationEthnic GroupRegionMutation FrquencyCoalescence TimeReference
SpainNANANA1131 years agoSanchez-Jimeno C et al., 2013Sanchez-Jimeno C, Cuadrado-Corrales N, Aller E, García M, Escámez MJ, Illera N, Trujillo-Tiebas MJ, Ayuso C, Millán JM, Del Río M, . Recessive dystrophic epidermolysis bullosa: the origin of the c.6527insC mutation in the Spanish population.. Br. J. Dermatol.. 2013; 168(1):226-9
SpainNANA27 patients/ 49 patientsNACuadrado-Corrales N et al., 2010Cuadrado-Corrales N, Sánchez-Jimeno C, García M, Escámez MJ, Illera N, Hernández-Martín A, Trujillo-Tiebas MJ, Ayuso C, Del Rio M, . A prevalent mutation with founder effect in Spanish Recessive Dystrophic Epidermolysis Bullosa families.. BMC Med. Genet.. 2010; 11(0):139

COL7A1 || c.497_498insA

Gene/Locus:    COL7A1
Dna Change:    c.497_498insA
Protein Change:    p.Val168GlyfsX12
Mutation Type:    Insertion
Mutation Effect:    Frameshift
Location:    exon 4
Transcript:    NM_000094.3

PopulationEthnic GroupRegionMutation FrquencyCoalescence TimeReference
ItalyNANA15.3% of mutated allelesNAGardella R et al., 2002Gardella R, Castiglia D, Posteraro P, Bernardini S, Zoppi N, Paradisi M, Tadini G, Barlati S, McGrath JA, Zambruno G, Colombi M, . Genotype-phenotype correlation in italian patients with dystrophic epidermolysis bullosa.. J. Invest. Dermatol.. 2002; 119(6):1456-62

COL7A1 || c.4783-1G>A

Gene/Locus:    COL7A1
Dna Change:    c.4783-1G>A
Protein Change:   
Mutation Type:    Substitution
Mutation Effect:    Splice site
Location:    intron 49
Transcript:    NM_000094.3

PopulationEthnic GroupRegionMutation FrquencyCoalescence TimeReference
ItalyNASicily6.1% of mutated allelesNAGardella R et al., 2002Gardella R, Castiglia D, Posteraro P, Bernardini S, Zoppi N, Paradisi M, Tadini G, Barlati S, McGrath JA, Zambruno G, Colombi M, . Genotype-phenotype correlation in italian patients with dystrophic epidermolysis bullosa.. J. Invest. Dermatol.. 2002; 119(6):1456-62

COL7A1 || c.1664G>A

Gene/Locus:    COL7A1
Dna Change:    c.1664G>A
Protein Change:    p.Gly555Glu
Mutation Type:    Substitution
Mutation Effect:    Missense
Location:    exon 13
Transcript:    NM_000094.3

PopulationEthnic GroupRegionMutation FrquencyCoalescence TimeReference
ItalyNAApulia5.1% of mutated allelesNAGardella R et al., 2002Gardella R, Castiglia D, Posteraro P, Bernardini S, Zoppi N, Paradisi M, Tadini G, Barlati S, McGrath JA, Zambruno G, Colombi M, . Genotype-phenotype correlation in italian patients with dystrophic epidermolysis bullosa.. J. Invest. Dermatol.. 2002; 119(6):1456-62

References

Ben Brick AS, Laroussi N, Mesrati H, Kefi R, Bchetnia M, Lasram K, Ben Halim N, Romdhane L, Ouragini H, Marrakchi S, Boubaker MS, Meddeb Cherif M, Castiglia D, Hovnanian A, Abdelhak S, Turki H, Mutational founder effect in recessive dystrophic epidermolysis bullosa families from Southern Tunisia.Arch. Dermatol. Res.. 2013; 0(0):

Cuadrado-Corrales N, Sánchez-Jimeno C, García M, Escámez MJ, Illera N, Hernández-Martín A, Trujillo-Tiebas MJ, Ayuso C, Del Rio M, A prevalent mutation with founder effect in Spanish Recessive Dystrophic Epidermolysis Bullosa families.BMC Med. Genet.. 2010; 11(0):139

Gardella R, Castiglia D, Posteraro P, Bernardini S, Zoppi N, Paradisi M, Tadini G, Barlati S, McGrath JA, Zambruno G, Colombi M, Genotype-phenotype correlation in italian patients with dystrophic epidermolysis bullosa.J. Invest. Dermatol.. 2002; 119(6):1456-62

Sanchez-Jimeno C, Cuadrado-Corrales N, Aller E, García M, Escámez MJ, Illera N, Trujillo-Tiebas MJ, Ayuso C, Millán JM, Del Río M, Recessive dystrophic epidermolysis bullosa: the origin of the c.6527insC mutation in the Spanish population.Br. J. Dermatol.. 2013; 168(1):226-9