Recurrent Dominant Mutations Affecting Two Adjacent Residues in the Motor Domain of the Monomeric Kinesin KIF22 Result in Skeletal Dysplasia and Joint Laxity

Autor: Sebastian Kalamajski, H. Rosemarie Davidson, A. Belinda Campos-Xavier, Eugênia Ribeiro Valadares, Goranka Tanackovich, Andrea Superti-Furga, Christine Hall, Daniel H. Cohn, Massimiliano Rossi, Generoso Andria, R. Curtis Rogers, Shiro Ikegawa, Diana Ballhausen, André Mégarbané, Michael D. Briggs, Sheila Unger, David L. Rimoin, Claire L. Hartley, Rainer König, Richard H Scott, Luisa Bonafé, Ralph S. Lachman, Eric D. Boyden, John F. Bateman, Pierre-Simon Jouk, Geert Mortier, Philippe Suarez, Trevor L. Cameron, Matthew L. Warman, Hirotake Sawada, Gen Nishimura
Přispěvatelé: Boyden, Ed, Campos Xavier, Ab, Kalamajski, S, Cameron, Tl, Suarez, P, Tanackovic, G, Andria, Generoso, Ballhausen, D, Briggs, Md, Hartley, C, Cohn, Dh, Davidson, Hr, Hall, C, Ikegawa, S, Jouk, P, König, R, Megarbané, A, Nishimura, G, Lachman, R, Mortier, G, Rimoin, Dl, Rogers, Rc, Rossi, M, Sawada, H, Scott, R, Unger, S, Valadares, Er, Bateman, Jf, Warman, Ml, Superti Furga, A, Bonafé, L., Tanackovich, G
Rok vydání: 2011
Předmět:
Zdroj: American journal of human genetics
The American journal of human genetics
ISSN: 0002-9297
DOI: 10.1016/j.ajhg.2011.10.016
Popis: Spondyloepimetaphyseal dysplasia with joint laxity, leptodactylic type (lepto-SEMDJL, aka SEMDJL, Hall type), is an autosomal dominant skeletal disorder that, in spite of being relatively common among skeletal dysplasias, has eluded molecular elucidation so far. We used whole-exome sequencing of five unrelated individuals with lepto-SEMDJL to identify mutations in KIF22 as the cause of this skeletal condition. Missense mutations affecting one of two adjacent amino acids in the motor domain of KIF22 were present in 20 familial cases from eight families and in 12 other sporadic cases. The skeletal and connective tissue phenotype produced by these specific mutations point to functions of KIF22 beyond those previously ascribed functions involving chromosome segregation. Although we have found Kif22 to be strongly upregulated at the growth plate, the precise pathogenetic mechanisms remain to be elucidated.
Databáze: OpenAIRE