@article {7487,
	title = {Low-Frequency Synonymous Coding Variation in CYP2R1 Has Large Effects on Vitamin D Levels and Risk of Multiple Sclerosis.},
	journal = {Am J Hum Genet},
	volume = {101},
	year = {2017},
	month = {2017 Aug 03},
	pages = {227-238},
	abstract = {<p>Vitamin D insufficiency is common, correctable, and influenced by genetic factors, and it has been associated with risk of several diseases. We sought to identify low-frequency genetic variants that strongly increase the risk of vitamin D insufficiency and tested their effect on risk of multiple sclerosis, a disease influenced by low vitamin D concentrations. We used whole-genome sequencing data from 2,619 individuals through the UK10K program and deep-imputation data from 39,655 individuals genotyped genome-wide. Meta-analysis of the summary statistics from 19 cohorts identified in CYP2R1 the low-frequency (minor allele frequency = 2.5\%) synonymous coding variant g.14900931G>A (p.Asp120Asp) (rs117913124[A]), which conferred a large effect on 25-hydroxyvitamin D (25OHD) levels (-0.43 SD of standardized natural log-transformed 25OHD per A allele; p value = 1.5~{\texttimes} 10(-88)). The effect on 25OHD was four times larger and independent of the effect of a previously described common variant near CYP2R1. By analyzing 8,711 individuals, we showed that heterozygote carriers of this low-frequency variant have an increased risk of vitamin D insufficiency (odds ratio [OR] = 2.2, 95\% confidence interval [CI] = 1.78-2.78, p = 1.26~{\texttimes} 10(-12)). Individuals carrying one copy of this variant also had increased odds of multiple sclerosis (OR = 1.4, 95\% CI = 1.19-1.64, p = 2.63~{\texttimes} 10(-5)) in a sample of 5,927 case and 5,599 control subjects. In~conclusion, we describe a low-frequency CYP2R1 coding variant that exerts the largest effect upon 25OHD levels identified to date in the general European population and implicates vitamin D in the etiology of multiple sclerosis.</p>},
	keywords = {Cholestanetriol 26-Monooxygenase, Cytochrome P450 Family 2, Gene Frequency, Genetic Predisposition to Disease, Genome, Human, Genome-Wide Association Study, Humans, Multiple Sclerosis, Polymorphism, Single Nucleotide, Risk Factors, Vitamin D, Vitamin D Deficiency},
	issn = {1537-6605},
	doi = {10.1016/j.ajhg.2017.06.014},
	author = {Manousaki, Despoina and Dudding, Tom and Haworth, Simon and Hsu, Yi-Hsiang and Liu, Ching-Ti and Medina-G{\'o}mez, Carolina and Voortman, Trudy and van der Velde, Nathalie and Melhus, H{\r a}kan and Robinson-Cohen, Cassianne and Cousminer, Diana L and Nethander, Maria and Vandenput, Liesbeth and Noordam, Raymond and Forgetta, Vincenzo and Greenwood, Celia M T and Biggs, Mary L and Psaty, Bruce M and Rotter, Jerome I and Zemel, Babette S and Mitchell, Jonathan A and Taylor, Bruce and Lorentzon, Mattias and Karlsson, Magnus and Jaddoe, Vincent V W and Tiemeier, Henning and Campos-Obando, Natalia and Franco, Oscar H and Utterlinden, Andre G and Broer, Linda and van Schoor, Natasja M and Ham, Annelies C and Ikram, M Arfan and Karasik, David and de Mutsert, Ren{\'e}e and Rosendaal, Frits R and den Heijer, Martin and Wang, Thomas J and Lind, Lars and Orwoll, Eric S and Mook-Kanamori, Dennis O and Micha{\"e}lsson, Karl and Kestenbaum, Bryan and Ohlsson, Claes and Mellstr{\"o}m, Dan and de Groot, Lisette C P G M and Grant, Struan F A and Kiel, Douglas P and Zillikens, M Carola and Rivadeneira, Fernando and Sawcer, Stephen and Timpson, Nicholas J and Richards, J Brent}
}
@article {7667,
	title = {Genome-wide association study in 79,366 European-ancestry individuals informs the genetic architecture of 25-hydroxyvitamin D levels.},
	journal = {Nat Commun},
	volume = {9},
	year = {2018},
	month = {2018 Jan 17},
	pages = {260},
	abstract = {<p>Vitamin D is a steroid hormone precursor that is associated with a range of human traits and diseases. Previous GWAS of serum 25-hydroxyvitamin D concentrations have identified four genome-wide significant loci (GC, NADSYN1/DHCR7, CYP2R1, CYP24A1). In this study, we expand the previous SUNLIGHT Consortium GWAS discovery sample size from 16,125 to 79,366 (all European descent). This larger GWAS yields two additional loci harboring genome-wide significant variants (P = 4.7{\texttimes}10 at rs8018720 in SEC23A, and P = 1.9{\texttimes}10 at rs10745742 in AMDHD1). The overall estimate of heritability of 25-hydroxyvitamin D serum concentrations attributable to GWAS common SNPs is 7.5\%, with statistically significant loci explaining 38\% of this total. Further investigation identifies signal enrichment in immune and hematopoietic tissues, and clustering with autoimmune diseases in cell-type-specific analysis. Larger studies are required to identify additional common SNPs, and to explore the role of rare or structural variants and gene-gene interactions in the heritability of circulating 25-hydroxyvitamin D levels.</p>},
	issn = {2041-1723},
	doi = {10.1038/s41467-017-02662-2},
	author = {Jiang, Xia and O{\textquoteright}Reilly, Paul F and Aschard, Hugues and Hsu, Yi-Hsiang and Richards, J Brent and Dupuis, Jos{\'e}e and Ingelsson, Erik and Karasik, David and Pilz, Stefan and Berry, Diane and Kestenbaum, Bryan and Zheng, Jusheng and Luan, Jianan and Sofianopoulou, Eleni and Streeten, Elizabeth A and Albanes, Demetrius and Lutsey, Pamela L and Yao, Lu and Tang, Weihong and Econs, Michael J and Wallaschofski, Henri and V{\"o}lzke, Henry and Zhou, Ang and Power, Chris and McCarthy, Mark I and Michos, Erin D and Boerwinkle, Eric and Weinstein, Stephanie J and Freedman, Neal D and Huang, Wen-Yi and van Schoor, Natasja M and van der Velde, Nathalie and Groot, Lisette C P G M de and Enneman, Anke and Cupples, L Adrienne and Booth, Sarah L and Vasan, Ramachandran S and Liu, Ching-Ti and Zhou, Yanhua and Ripatti, Samuli and Ohlsson, Claes and Vandenput, Liesbeth and Lorentzon, Mattias and Eriksson, Johan G and Shea, M Kyla and Houston, Denise K and Kritchevsky, Stephen B and Liu, Yongmei and Lohman, Kurt K and Ferrucci, Luigi and Peacock, Munro and Gieger, Christian and Beekman, Marian and Slagboom, Eline and Deelen, Joris and Heemst, Diana van and Kleber, Marcus E and M{\"a}rz, Winfried and de Boer, Ian H and Wood, Alexis C and Rotter, Jerome I and Rich, Stephen S and Robinson-Cohen, Cassianne and den Heijer, Martin and Jarvelin, Marjo-Riitta and Cavadino, Alana and Joshi, Peter K and Wilson, James F and Hayward, Caroline and Lind, Lars and Micha{\"e}lsson, Karl and Trompet, Stella and Zillikens, M Carola and Uitterlinden, Andr{\'e} G and Rivadeneira, Fernando and Broer, Linda and Zgaga, Lina and Campbell, Harry and Theodoratou, Evropi and Farrington, Susan M and Timofeeva, Maria and Dunlop, Malcolm G and Valdes, Ana M and Tikkanen, Emmi and Lehtim{\"a}ki, Terho and Lyytik{\"a}inen, Leo-Pekka and K{\"a}h{\"o}nen, Mika and Raitakari, Olli T and Mikkil{\"a}, Vera and Ikram, M Arfan and Sattar, Naveed and Jukema, J Wouter and Wareham, Nicholas J and Langenberg, Claudia and Forouhi, Nita G and Gundersen, Thomas E and Khaw, Kay-Tee and Butterworth, Adam S and Danesh, John and Spector, Timothy and Wang, Thomas J and Hypp{\"o}nen, Elina and Kraft, Peter and Kiel, Douglas P}
}
