Origin and spread of a common deletion causing mucolipidosis type II

Insights from patterns of haplotypic diversity

Mf Coutinho, M. Encarnação, R. Gomes, L. da Silva Santos, S. Martins, D. Sirois-Gagnon, R. Bargal, M. Filocamo, A. Raas-Rothschild, B. Tappino, C. Laprise, Gk Cury, Iv Schwartz, O. Artigalás, Mj Prata, S. Alves

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Mucolipidosis II (ML II alpha/beta), or I-cell disease, is a rare genetic disease in which activity of the uridine diphosphate (UDP)-N-acetylglucosamine:lysosomal enzyme N-acetylglucosamine-1-phosphotransferase (GlcNAc-phosphotransferase) is absent. GlcNAc-phosphotransferase is a multimeric enzyme encoded by two genes, GNPTAB and GNPTG. A spectrum of mutations in GNPTAB has been recently reported to cause ML II alpha/beta. Most of these mutations were found to be private or rare. However, the mutation c.3503-3504delTC has been detected among Israeli and Palestinian Arab-Muslim, Turkish, Canadian, Italian, Portuguese, Irish traveller and US patients. We analysed 44 patients who were either homozygous or compound heterozygous for this deletion (22 Italians, 8 Arab-Muslims, 1 Turk, 3 Argentineans, 3 Brazilians, 2 Irish travellers and 5 Portuguese) and 16 carriers (15 Canadians and 1 Italian) for three intragenic polymorphisms: c.-41--39delGGC, c.18G>A and c.1932A>G as well as two microsatellite markers flanking the GNPTAB gene (D12S1607 and D12S1727). We identified a common haplotype in all chromosomes bearing the c.3503-3504delTC mutation. In summary, we showed that patients carrying the c.3503-3504delTC deletion presented with a common haplotype, which implies a common origin of this mutation. Additionally, the level of diversity observed at the most distant locus indicates that the mutation is relatively ancient (around 2063 years old), and the geographical distribution further suggests that it probably arose in a peri-Mediterranean region.

Original languageEnglish
Pages (from-to)273-280
Number of pages8
JournalClinical Genetics
Volume80
Issue number3
DOIs
Publication statusPublished - Sep 2011

Fingerprint

Mucolipidoses
Mutation
Islam
Haplotypes
Phosphotransferases
Uridine Diphosphate N-Acetylglucosamine
Mediterranean Region
Inborn Genetic Diseases
Enzymes
Rare Diseases
Microsatellite Repeats
Genes
Chromosomes

Keywords

  • C.3503-3504delTC
  • Common origin
  • Haplotypic analysis
  • Mucolipidosis

ASJC Scopus subject areas

  • Genetics(clinical)
  • Genetics

Cite this

Coutinho, M., Encarnação, M., Gomes, R., da Silva Santos, L., Martins, S., Sirois-Gagnon, D., ... Alves, S. (2011). Origin and spread of a common deletion causing mucolipidosis type II: Insights from patterns of haplotypic diversity. Clinical Genetics, 80(3), 273-280. https://doi.org/10.1111/j.1399-0004.2010.01539.x

Origin and spread of a common deletion causing mucolipidosis type II : Insights from patterns of haplotypic diversity. / Coutinho, Mf; Encarnação, M.; Gomes, R.; da Silva Santos, L.; Martins, S.; Sirois-Gagnon, D.; Bargal, R.; Filocamo, M.; Raas-Rothschild, A.; Tappino, B.; Laprise, C.; Cury, Gk; Schwartz, Iv; Artigalás, O.; Prata, Mj; Alves, S.

In: Clinical Genetics, Vol. 80, No. 3, 09.2011, p. 273-280.

Research output: Contribution to journalArticle

Coutinho, M, Encarnação, M, Gomes, R, da Silva Santos, L, Martins, S, Sirois-Gagnon, D, Bargal, R, Filocamo, M, Raas-Rothschild, A, Tappino, B, Laprise, C, Cury, G, Schwartz, I, Artigalás, O, Prata, M & Alves, S 2011, 'Origin and spread of a common deletion causing mucolipidosis type II: Insights from patterns of haplotypic diversity', Clinical Genetics, vol. 80, no. 3, pp. 273-280. https://doi.org/10.1111/j.1399-0004.2010.01539.x
Coutinho, Mf ; Encarnação, M. ; Gomes, R. ; da Silva Santos, L. ; Martins, S. ; Sirois-Gagnon, D. ; Bargal, R. ; Filocamo, M. ; Raas-Rothschild, A. ; Tappino, B. ; Laprise, C. ; Cury, Gk ; Schwartz, Iv ; Artigalás, O. ; Prata, Mj ; Alves, S. / Origin and spread of a common deletion causing mucolipidosis type II : Insights from patterns of haplotypic diversity. In: Clinical Genetics. 2011 ; Vol. 80, No. 3. pp. 273-280.
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