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The selenium content of SEPP1 versus selenium requirements in vertebrates
Sam Penglase1, Kristin Hamre2, Ståle Ellingsen2
1National Institute of Nutrition and Seafood Research (NIFES), Bergen, Norway; Department of Biology, University of Bergen, Bergen, Norway; Current affiliation: Aquaculture Research Solutions (ARS), Mundingburra, Australia.
Abstract:
Selenoprotein P (SEPP1) distributes selenium (Se) throughout the body via the circulatory system. For vertebrates, the Se content of SEPP1 varies from 7 to 18 Se atoms depending on the species, but the reason for this variation remains unclear. Herein we provide evidence that vertebrate SEPP1 Sec content correlates positively with Se requirements. As the Se content of full length SEPP1 is genetically determined, this presents a unique case where a nutrient requirement can be predicted based on genomic sequence information.
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