Homologous recombination of a flanking repeat gene cluster is a mechanism for a common contiguous gene deletion syndrome

被引:284
作者
Chen, KS
Manian, P
Koeuth, T
Potocki, L
Zhao, Q
Chinault, AC
Lee, CC
Lupski, JR
机构
[1] BAYLOR COLL MED,DEPT MOL & HUMAN GENET,HOUSTON,TX 77030
[2] BAYLOR COLL MED,DEPT MED,HOUSTON,TX 77030
[3] BAYLOR COLL MED,DEPT PEDIAT,HOUSTON,TX 77030
[4] TEXAS CHILDRENS HOSP,BAYLOR COLL MED,CTR HUMAN GENOME,HOUSTON,TX 77030
关键词
D O I
10.1038/ng1097-154
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Smith-Magenis syndrome (SMS), caused by del(17)p11.2, represents one of the most frequently observed human microdeletion syndromes. We have identified three copies of a low-copy-number repeat (SMS-REPs) located within and flanking the SMS common deletion region and show that SMS-REP represents a repeated gene cluster. We have isolated a corresponding cDNA clone that identifies a novel junction fragment from 29 unrelated SMS patients and a different-sized junction fragment from a patient with dup(17)p11.2. Our results suggest that homologous recombination of a flanking repeat gene cluster is a mechanism for this common microdeletion syndrome.
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页码:154 / 163
页数:10
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