Disruption of an AP-2alpha binding site in an IRF6 enhancer is associated with cleft lip.
Disruption of an AP-2alpha binding site in an IRF6 enhancer is associated with cleft lip.
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DOI:
10.1038/ng.242
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发表时间:
2008-11
期刊:
影响因子:
30.8
通讯作者:
Murray, Jeffrey C.
中科院分区:
文献类型:
--
作者:
Rahimov, Fedik;Marazita, Mary L.;Visel, Axel;Cooper, Margaret E.;Hitchler, Michael J.;Rubini, Michele;Domann, Frederick E.;Govil, Manika;Christensen, Kaare;Bille, Camille;Melbye, Mads;Jugessur, Astanand;Lie, Rolv T.;Wilcox, Allen J.;Fitzpatrick, David R.;Green, Eric D.;Mossey, Peter A.;Little, Julian;Steegers-Theunissen, Regine P.;Pennacchio, Len A.;Schutte, Brian C.;Murray, Jeffrey C.
Previously we have shown that nonsyndromic cleft lip with or without cleft palate (NSCL/P), is strongly associated with SNPs in Interferon Regulatory Factor 6 (IRF6). Here, multispecies sequence comparisons identify a common SNP (rs642961, G>A) in a novel IRF6 enhancer. The A allele is significantly overtransmitted (P=1×10−11) in families with NSCL/P, in particular with cleft lip (CL) but not cleft palate. Further, there is a dosage effect of the A allele, with the relative risk for CL 1.68 for the AG genotype and 2.40 for the AA genotype. EMSA and ChIP assays demonstrate that the risk allele disrupts the binding site of transcription factor AP-2α and expression analysis in the mouse localizes the enhancer activity to craniofacial and limb structures. Our findings place IRF6 and AP-2α in the same developmental pathway and identify a high frequency variant in a regulatory element contributing substantially to a common, complex disorder.
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通讯作者:
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