The protein encoded by the FADS1 gene is a member of the fatty acid desaturase (FADS) gene family and desaturates omega-3 and omega-6 polyunsaturated fatty acids at the delta-5 position, catalyzing the final step in the formation of eicosapentaenoic acid (EPA) and Arachidonic acid.[2] Desaturase enzymes (such as those encoded by FADS1) regulate unsaturation of fatty acids through the introduction of double bonds between defined carbons of the fatty acyl chain. FADS family members are considered fusion products composed of an N-terminalcytochrome b5-like domain and a C-terminal multiple membrane-spanning desaturase portion, both of which are characterized by conserved histidine motifs. This gene is clustered with family members FADS1 and FADS2 at 11q12-q13.1; this cluster is thought to have arisen evolutionarily from gene duplication based on its similar exon/intron organization.[1]
↑Lattka, E.; Illig, T.; Heinrich, J.; Koletzko, B. (2009). "FADS Gene Cluster Polymorphisms: Important Modulators of Fatty Acid Levels and Their Impact on Atopic Diseases". Journal of Nutrigenetics and Nutrigenomics. 2 (3): 119–128. doi:10.1159/000235559. PMID19776639.
Further reading
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Schaeffer L, Gohlke H, Müller M, et al. (2006). "Common genetic variants of the FADS1 FADS2 gene cluster and their reconstructed haplotypes are associated with the fatty acid composition in phospholipids". Hum. Mol. Genet. 15 (11): 1745–56. doi:10.1093/hmg/ddl117. PMID16670158.
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Dreesen TD, Adamson AW, Tekle M, et al. (2006). "A newly discovered member of the fatty acid desaturase gene family: a non-coding, antisense RNA gene to delta5-desaturase". Prostaglandins Leukot. Essent. Fatty Acids. 75 (2): 97–106. doi:10.1016/j.plefa.2006.05.001. PMID16846730.
Risé P, Ghezzi S, Carissimi R, et al. (2007). "Delta5 desaturase mRNA levels are increased by simvastatin via SREBP-1 at early stages, not via PPARalpha, in THP-1 cells". Eur. J. Pharmacol. 571 (2–3): 97–105. doi:10.1016/j.ejphar.2007.06.021. PMID17655842.