AIRE-PHD fingers are structural hubs to maintain the integrity of chromatin-associated interactome.
AIRE-PHD fingers are structural hubs to maintain the integrity of chromatin-associated interactome.
复制标题
DOI:
10.1093/nar/gks933
复制
发表时间:
2012-12
影响因子:
14.9
通讯作者:
Musco G
中科院分区:
文献类型:
--
作者:
Gaetani M;Matafora V;Saare M;Spiliotopoulos D;Mollica L;Quilici G;Chignola F;Mannella V;Zucchelli C;Peterson P;Bachi A;Musco G
Mutations in autoimmune regulator (AIRE) gene cause autoimmune polyendocrinopathy candidiasis ectodermal dystrophy. AIRE is expressed in thymic medullary epithelial cells, where it promotes the expression of peripheral-tissue antigens to mediate deletional tolerance, thereby preventing self-reactivity. AIRE contains two plant homeodomains (PHDs) which are sites of pathological mutations. AIRE-PHD fingers are important for AIRE transcriptional activity and presumably play a crucial role in the formation of multimeric protein complexes at chromatin level which ultimately control immunological tolerance. As a step forward the understanding of AIRE-PHD fingers in normal and pathological conditions, we investigated their structure and used a proteomic SILAC approach to assess the impact of patient mutations targeting AIRE-PHD fingers. Importantly, both AIRE-PHD fingers are structurally independent and mutually non-interacting domains. In contrast to D297A and V301M on AIRE-PHD1, the C446G mutation on AIRE-PHD2 destroys the structural fold, thus causing aberrant AIRE localization and reduction of AIRE target genes activation. Moreover, mutations targeting AIRE-PHD1 affect the formation of a multimeric protein complex at chromatin level. Overall our results reveal the importance of AIRE-PHD domains in the interaction with chromatin-associated nuclear partners and gene regulation confirming the role of PHD fingers as versatile protein interaction hubs for multiple binding events.
登录
查看更多内容
影响因子:
56.9
作者:
Anderson, MS;Venanzi, ES;Mathis, D
通讯作者:
Mathis, D
影响因子:
4.8
作者:
Akiyoshi, H;Hatakeyama, S;Matsumoto, M
通讯作者:
Matsumoto, M
DOI:
10.1111/j.1749-6632.2011.06308.x
发表时间:
2011-01-01
期刊:
YEAR IN HUMAN AND MEDICAL GENETICS: INBORN ERRORS OF IMMUNITY II
影响因子:
--
作者:
Kisand, Kai;Peterson, Paet
通讯作者:
Peterson, Paet
影响因子:
3.7
作者:
Musco G;Peterson P
通讯作者:
Peterson P
影响因子:
7
作者:
Mousson, Florence;Kolkman, Annemieke;Heck, Albert J. R.
通讯作者:
Heck, Albert J. R.