Major histocompatibility complex associations of ankylosing spondylitis are complex and involve further epistasis with ERAP1.

Cortes A, Pulit SL, Leo PJ, Pointon JJ, Robinson PC, Weisman MH, Ward M, Gensler LS, Zhou X, Garchon HJ, Chiocchia G, Nossent J, Lie BA, Førre Ø, Tuomilehto J, Laiho K, Bradbury LA, Elewaut D, Burgos-Vargas R, Stebbings S, Appleton L, Farrah C, Lau J, Haroon N, Mulero J, Blanco FJ, Gonzalez-Gay MA, Lopez-Larrea C, Bowness P, Gaffney K, Gaston H, Gladman DD, Rahman P, Maksymowych WP, Crusius JB, van der Horst-Bruinsma IE, Valle-Oñate R, Romero-Sánchez C, Hansen IM, Pimentel-Santos FM, Inman RD, Martin J, Breban M, Wordsworth BP, Reveille JD, Evans DM, de Bakker PI, Brown MA
Nat Commun. 2015 May 21;6:7146. doi: 10.1038/ncomms8146.