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Title: | Nucleotide variation of sFRP5 gene is not associated with obesity in children and adolescents | Authors: | Van Camp, Jasmijn K. Beckers, Sigri Zegers, Doreen Verhulst, Stijn L. Van Hoorenbeeck, Kim MASSA, Guy Verrijken, An Desager, Kristine N. Van Gaal, Luc F. Van Hul, Wim |
Issue Date: | 2016 | Source: | MOLECULAR BIOLOGY REPORTS, 43(10), p. 1041-1047 | Abstract: | Because sFRP5 was shown to be an important extracellular modulator of the Wnt pathway, regulating adipogenesis, we wanted to investigate the role of sFRP5 variants in human, monogenic obesity by performing mutation analysis. We screened the complete sFRP5 coding region in 622 obese children and adolescents and 503 lean control individuals by high-resolution melting curve analysis and direct sequencing. We found a total of 15 sequence variants in sFRP5, 10 of which resulted in a non-synonymous amino acid change. Five of these variants were, to our knowledge, not previously reported. For one of the variants (c.-3G > A), we identified a trend towards association between the variant frequency and the obese phenotype. We argue that, when looking at conservation and location inside known protein domains, several of the identified variants (D103N, A113V, K212N and H317L), may affect sFRP5 protein function. In addition, we found c.-3G > A, residing in the Kozak sequence, with a lower frequency in cases compared to controls. However, functional studies investigating the effect of sFRP5 variants on protein function are necessary to determine the true role of sFRP5 genetic variation in human, monogenic obesity. | Keywords: | obesity; Wnt; sFRP; mutation analysis; genetics | Document URI: | http://hdl.handle.net/1942/26498 | ISSN: | 0301-4851 | e-ISSN: | 1573-4978 | DOI: | 10.1007/s11033-016-4050-7 | ISI #: | 000383582600004 | Rights: | (C) Springer Science+Business Media Dordrecht 2016 | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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