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http://purl.uniprot.org/citations/35729508 | http://www.w3.org/2000/01/rdf-schema#comment | "BackgroundMucopolysaccharidosis IVA (Morquio syndrome A, MPS IVA) is an autosomal recessive lysosomal storage disorder caused due to biallelic variants in the N-acetylgalactoseamine-6-sulfate sulfatase (GALNS) gene. The mutation spectrum in this condition is determined amongst sub-populations belonging to the north, south and east India geography, however, sub-populations of west Indian origin, especially Gujarati-Indians, are yet to be studied. We aimed to analyse the variants present in the GLANS gene amongst the population of Gujarat by sequencing all exons and exon-intron boundaries of the GALNS gene in patients from 23 unrelated families.ResultsWe report 11 variants that include eight missense variants: (p.L36R, p.D39G, p.P77R, p.C79R, pP125L, p.P151L, p.G255A and p.L350P), one splice site variant: (c.121-7C > G), one small insertion: (c.1241_1242insA, p.I416HfsTer2) and one small deletion: (c.839_841delACA). Of these, three missense variants (p.D39G, p.G255A and p.L350P), one splice site and the two indels mentioned above are novel. Interestingly, we observed a higher than anticipated prevalence of p.P77R variant in our cohort (n = 14/25, 56%). Haplotype analysis in cases with p.P77R variant and 63 ethnicity matched healthy population controls suggested a 4 SNP haplotype block present in cases compared to controls (likelihood ratio test p-value = 1.16 × 10-13), thereby suggesting p.P77R variant as a founder variant in the Gujarati-Indian population. Furthermore, age of mutation analysis suggested the variant to have arisen approximately 450 years ago in the population.Conclusionp.P77R variant in the GLANS gene is likely to be a founder variant in MPS IVA patients of Gujarati-Indian ancestry and appeared approximately 450 years ago in the population. To our knowledge, this is the first variant to be posited as a founder variant in the GLANS gene in patients with MPS IVA syndrome."xsd:string |
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http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/author | "Nair A."xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/author | "Shah M."xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/author | "Sheth F."xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/author | "Sheth J."xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/author | "Bhavsar R."xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/author | "Naik P."xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/author | "Sheth H."xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/date | "2022"xsd:gYear |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/name | "BMC Genomics"xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/pages | "458"xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/title | "The GALNS p.P77R variant is a probable Gujarati-Indian founder mutation causing Mucopolysaccharidosis IVA syndrome."xsd:string |
http://purl.uniprot.org/citations/35729508 | http://purl.uniprot.org/core/volume | "23"xsd:string |
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