Phenotype: Muscular dystrophy, limb-girdle, type 2C


OMIM: 253700
Inheritance: Autosomal recessive
Classification: Diseases of the nervous system

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SGCG || 87insT

Gene/Locus:    SGCG
Dna Change:    87insT
Protein Change:   
Mutation Type:    Insertion
Mutation Effect:    Frameshift
Location:   
Transcript:    NM_000231.2

PopulationEthnic GroupRegionMutation FrquencyCoalescence TimeReference
ItalyNANorthern Italy3 patients/4 familiesNAFanin M et al., 2000Fanin M, Hoffman EP, Angelini C, Pegoraro E, . Private beta- and gamma-sarcoglycan gene mutations: evidence of a founder effect in Northern Italy.. Hum. Mutat.. 2000; 16(1):13-7

SGCG || c.848G>A

Gene/Locus:    SGCG
Dna Change:    c.848G>A
Protein Change:    p.Cys283Tyr
Mutation Type:    Substitution
Mutation Effect:    Missense
Location:    exon 8
Transcript:    NM_000231.2

PopulationEthnic GroupRegionMutation FrquencyCoalescence TimeReference
FranceGypsyNA7 patients/4 families60 and 200 generations agoPiccolo F et al., 1996Piccolo F, Jeanpierre M, Leturcq F, Dodé C, Azibi K, Toutain A, Merlini L, Jarre L, Navarro C, Krishnamoorthy R, Tomé FM, Urtizberea JA, Beckmann JS, Campbell KP, Kaplan JC, . A founder mutation in the gamma-sarcoglycan gene of gypsies possibly predating their migration out of India.. Hum. Mol. Genet.. 1996; 5(12):2019-22
GreeceGypsyNANANASpengos K et al., 2010Spengos K, Walter MC, Dekomien G, Papadopoulos K, Lochmüller H, Manta P, . C283Y mutation in the gamma-sarcoglycan gene in Greek Gypsies with severe limb girdle muscular dystrophy.. Eur. J. Neurol.. 2010; 17(6):e41-2
ItalyGypsyNA5 patients/2 families60 and 200 generations agoPiccolo F et al., 1996Piccolo F, Jeanpierre M, Leturcq F, Dodé C, Azibi K, Toutain A, Merlini L, Jarre L, Navarro C, Krishnamoorthy R, Tomé FM, Urtizberea JA, Beckmann JS, Campbell KP, Kaplan JC, . A founder mutation in the gamma-sarcoglycan gene of gypsies possibly predating their migration out of India.. Hum. Mol. Genet.. 1996; 5(12):2019-22
SpainGypsyNANANALasa A et al., 1998Lasa A, Piccolo F, de Diego C, Jeanpierre M, Colomer J, Rodríguez MJ, Urtizberea JA, Baiget M, Kaplan J, Gallano P, . Severe limb girdle muscular dystrophy in Spanish gypsies: further evidence for a founder mutation in the gamma-sarcoglycan gene.. Eur. J. Hum. Genet.. 1998; 6(4):396-9
SpainGypsyNA6 patients/1 families60 and 200 generations agoPiccolo F et al., 1996Piccolo F, Jeanpierre M, Leturcq F, Dodé C, Azibi K, Toutain A, Merlini L, Jarre L, Navarro C, Krishnamoorthy R, Tomé FM, Urtizberea JA, Beckmann JS, Campbell KP, Kaplan JC, . A founder mutation in the gamma-sarcoglycan gene of gypsies possibly predating their migration out of India.. Hum. Mol. Genet.. 1996; 5(12):2019-22

SGCG || c.525delT

Gene/Locus:    SGCG
Dna Change:    c.525delT
Protein Change:    p.Phe175LeufsX20
Mutation Type:    Deletion
Mutation Effect:    Frameshift
Location:    exon 6
Transcript:    NM_000231.2

PopulationEthnic GroupRegionMutation FrquencyCoalescence TimeReference
MoroccoNANA1/250 (carrier frequency)NAEl Kerch F et al., 2014El Kerch F, Ratbi I, Sbiti A, Laarabi FZ, Barkat A, Sefiani A, . Carrier Frequency of the c.525delT Mutation in the SGCG Gene and Estimated Prevalence of Limb Girdle Muscular Dystrophy Type 2C Among the Moroccan Population.. Genet Test Mol Biomarkers. 2014; 18(4):253-6
TunisiaNANA132 patients/28 familiesNAKefi M et al., 2003Kefi M, Amouri R, Driss A, Ben Hamida C, Ben Hamida M, Kunkel LM, Hentati F, . Phenotype and sarcoglycan expression in Tunisian LGMD 2C patients sharing the same del521-T mutation.. Neuromuscul. Disord.. 2003; 13(10):779-87

References

El Kerch F, Ratbi I, Sbiti A, Laarabi FZ, Barkat A, Sefiani A, Carrier Frequency of the c.525delT Mutation in the SGCG Gene and Estimated Prevalence of Limb Girdle Muscular Dystrophy Type 2C Among the Moroccan Population.Genet Test Mol Biomarkers. 2014; 18(4):253-6

Fanin M, Hoffman EP, Angelini C, Pegoraro E, Private beta- and gamma-sarcoglycan gene mutations: evidence of a founder effect in Northern Italy.Hum. Mutat.. 2000; 16(1):13-7

Kefi M, Amouri R, Driss A, Ben Hamida C, Ben Hamida M, Kunkel LM, Hentati F, Phenotype and sarcoglycan expression in Tunisian LGMD 2C patients sharing the same del521-T mutation.Neuromuscul. Disord.. 2003; 13(10):779-87

Lasa A, Piccolo F, de Diego C, Jeanpierre M, Colomer J, Rodríguez MJ, Urtizberea JA, Baiget M, Kaplan J, Gallano P, Severe limb girdle muscular dystrophy in Spanish gypsies: further evidence for a founder mutation in the gamma-sarcoglycan gene.Eur. J. Hum. Genet.. 1998; 6(4):396-9

Piccolo F, Jeanpierre M, Leturcq F, Dodé C, Azibi K, Toutain A, Merlini L, Jarre L, Navarro C, Krishnamoorthy R, Tomé FM, Urtizberea JA, Beckmann JS, Campbell KP, Kaplan JC, A founder mutation in the gamma-sarcoglycan gene of gypsies possibly predating their migration out of India.Hum. Mol. Genet.. 1996; 5(12):2019-22

Spengos K, Walter MC, Dekomien G, Papadopoulos K, Lochmüller H, Manta P, C283Y mutation in the gamma-sarcoglycan gene in Greek Gypsies with severe limb girdle muscular dystrophy.Eur. J. Neurol.. 2010; 17(6):e41-2