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Am J Hum Genet. 2013 Dec 5;93(6):1035-45. doi: 10.1016/j.ajhg.2013.10.019. Epub 2013 Nov 21.

Joint linkage and association analysis with exome sequence data implicates SLC25A40 in hypertriglyceridemia.

Collaborators (387)

Abecasis GR, Allayee H, Cresci S, Daly MJ, de Bakker PI, DePristo MA, Do R, Donnelly P, Farlow DN, Fennell T, Garimella K, Hazen SL, Hu Y, Jordan DM, Jun G, Kathiresan S, Kang HM, Kiezun A, Lettre G, Li B, Li M, Newton-Cheh CH, Padmanabhan S, Peloso G, Pulit S, Rader DJ, Reich D, Reilly MP, Rivas MA, Schwartz S, Scott L, Siscovick DS, Spertus JA, Stitziel NO, Stoletzki N, Sunyaev SR, Voight BF, Willer CJ, Rich SS, Akylbekova E, Atwood LD, Ballantyne CM, Barbalic M, Barr R, Benjamin EJ, Bis J, Boerwinkle E, Bowden DW, Brody J, Budoff M, Burke G, Buxbaum S, Carr J, Chen DT, Chen IY, Chen WM, Concannon P, Crosby J, Cupples L, D'Agostino R, DeStefano AL, Dreisbach A, Dupuis J, Durda J, Ellis J, Folsom AR, Fornage M, Fox CS, Fox E, Funari V, Ganesh SK, Gardin J, Goff D, Gordon O, Grody W, Gross M, Guo X, Hall IM, Heard-Costa NL, Heckbert SR, Heintz N, Herrington DM, Hickson D, Huang J, Hwang SJ, Jacobs DR, Jenny NS, Johnson AD, Johnson CW, Kawut S, Kronmal R, Kurz R, Lange EM, Lange LA, Larson MG, Lawson M, Lewis CE, Levy D, Li D, Lin H, Liu C, Liu J, Liu K, Liu X, Liu Y, Longstreth WT, Loria C, Lumley T, Lunetta K, Mackey AJ, Mackey R, Manichaikul A, Maxwell T, McKnight B, Meigs JB, Morrison AC, Musani SK, Mychaleckyj JC, Nettleton JA, North K, O'Donnell CJ, O'Leary D, Ong FS, Palmas W, Pankow JS, Pankratz ND, Paul S, Perez M, Person SD, Polak J, Post WS, Psaty BM, Quinlan AR, Raffel LJ, Ramachandran VS, Reiner AP, Rice K, Rotter JI, Sanders JP, Schreiner P, Seshadri S, Shea S, Sidney S, Silverstein K, Siscovick DS, Smith NL, Sotoodehnia N, Srinivasan A, Taylor HA, Taylor K, Thomas F, Tracy RP, Tsai MY, Volcik KA, Wassel CL, Watson K, Wei G, White W, Wiggins KL, Wilk JB, Williams O, Wilson G, Wilson JG, Wolf P, Zakai NA, Hardy J, Meschia JF, Nalls M, Rich SS, Singleton A, Worrall B, Bamshad MJ, Barnes KC, Abdulhamid I, Accurso F, Anbar R, Beaty T, Bigham A, Black P, Bleecker E, Buckingham K, Cairns AM, Chen WM, Caplan D, Chatfield B, Chidekel A, Cho M, Christiani DC, Crapo JD, Crouch J, Daley D, Dang A, Dang H, De Paula A, DeCelie-Germana J, Dozor A, Drumm M, Dyson M, Emerson J, Emond MJ, Ferkol T, Fink R, Foster C, Froh D, Gao L, Gershan W, Gibson RL, Godwin E, Gondor M, Gutierrez H, Hansel NN, Hassoun PM, Hiatt P, Hokanson JE, Howenstine M, Hummer LK, Jamal SM, Kanga J, Kim Y, Knowles MR, Konstan M, Lahiri T, Laird N, Lange C, Lin L, Lin X, Louie TL, Lynch D, Make B, Martin TR, Mathai SC, Mathias RA, McNamara S, Meyers D, Millard S, Mogayzel P, Moss R, Murray T, Nielson D, Noyes B, O'Neal W, Orenstein D, O'Sullivan B, Pace R, Pare P, Parker H, Passero MA, Perkett E, Prestridge A, Rafaels NM, Ramsey B, Regan E, Ren C, Retsch-Bogart G, Rock M, Rosen A, Rosenfeld M, Ruczinski I, Sanford A, Schaeffer D, Sell C, Sheehan D, Silverman EK, Sin D, Spencer T, Stonebraker J, Tabor HK, Varlotta L, Vergara CI, Weiss R, Wigley F, Wise RA, Wright FA, Wurfel MM, Zanni R, Zou F, Nickerson DA, Rieder MJ, Green P, Shendure J, Akey JM, Bamshad MJ, Bucasas KL, Bustamante CD, Crosslin DR, Eichler EE, Fox P, Fu W, Gordon A, Gravel S, Jarvik GP, Johnsen JM, Kan M, Kenny EE, Kidd JM, Lara-Garduno F, Leal SM, Liu DJ, McGee S, O'Connor TD, Paeper B, Robertson PD, Smith JD, Staples JC, Tennessen JA, Turner EH, Wang G, Yi Q, Jackson R, North K, Peters U, Carlson CS, Anderson G, Hutchinson F, Anton-Culver H, Assimes TL, Auer PL, Beresford S, Bizon C, Black H, Brunner R, Brzyski R, Burwen D, Caan B, Carty CL, Chlebowski R, Cummings S, Curb J, Eaton CB, Ford L, Franceschini N, Fullerton SM, Gass M, Geller N, Heiss G, Howard BV, Hsu L, Hutter CM, Ioannidis J, Jiao S, Johnson KC, Kooperberg C, Kuller L, LaCroix A, Lakshminarayan K, Lane D, Lange EM, Lange LA, Lasser N, LeBlanc E, Lewis CE, Li KP, Limacher M, Lin DY, Logsdon BA, Ludlam S, Manson JE, Margolis K, Martin L, McGowan J, Monda KL, Kotchen JM, Nathan L, Ockene J, O'Sullivan MJ, Phillips LS, Prentice RL, Reiner AP, Robbins J, Robinson JG, Rossouw JE, Sangi-Haghpeykar H, Sarto GE, Shumaker S, Simon MS, Stefanick ML, Stein E, Tang H, Taylor KC, Thomson CA, Thornton TA, Van Horn L, Vitolins M, Wactawski-Wende J, Wallace R, Wassertheil-Smoller S, Zeng D.

Author information

1
Division of Medical Genetics, Department of Medicine, University of Washington, Seattle, WA 98195, USA. Electronic address: erosen@uw.edu.

Abstract

Hypertriglyceridemia (HTG) is a heritable risk factor for cardiovascular disease. Investigating the genetics of HTG may identify new drug targets. There are ~35 known single-nucleotide variants (SNVs) that explain only ~10% of variation in triglyceride (TG) level. Because of the genetic heterogeneity of HTG, a family study design is optimal for identification of rare genetic variants with large effect size because the same mutation can be observed in many relatives and cosegregation with TG can be tested. We considered HTG in a five-generation family of European American descent (n = 121), ascertained for familial combined hyperlipidemia. By using Bayesian Markov chain Monte Carlo joint oligogenic linkage and association analysis, we detected linkage to chromosomes 7 and 17. Whole-exome sequence data revealed shared, highly conserved, private missense SNVs in both SLC25A40 on chr7 and PLD2 on chr17. Jointly, these SNVs explained 49% of the genetic variance in TG; however, only the SLC25A40 SNV was significantly associated with TG (p = 0.0001). This SNV, c.374A>G, causes a highly disruptive p.Tyr125Cys substitution just outside the second helical transmembrane region of the SLC25A40 inner mitochondrial membrane transport protein. Whole-gene testing in subjects from the Exome Sequencing Project confirmed the association between TG and SLC25A40 rare, highly conserved, coding variants (p = 0.03). These results suggest a previously undescribed pathway for HTG and illustrate the power of large pedigrees in the search for rare, causal variants.

PMID:
24268658
PMCID:
PMC3852929
DOI:
10.1016/j.ajhg.2013.10.019
[Indexed for MEDLINE]
Free PMC Article
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