6a8r
From Proteopedia
Crystal structure of DUX4 HD2 domain associated with ERG DNA binding site
Structural highlights
DiseaseDUX4_HUMAN Facioscapulohumeral dystrophy. The gene represented in this entry is involved in disease pathogenesis. The disease is caused by deletion of an integral number of units of a 3.3-kb tandem repeats, termed D4Z4 macrosatellite, located on chromosome 4q35. In unaffected subjects, the D4Z4 array consists of 11-150 repeats, while in FSHD1 patients, the array is reduced to 1-10 repeats (PubMed:19320656). DUX4 is located in D4Z4 macrosatellite which is epigenetically repressed in somatic tissues. D4Z4 chromatin relaxation in FSHD1 results in inefficient epigenetic repression of DUX4 and a variegated pattern of DUX4 protein expression in a subset of skeletal muscle nuclei. Ectopic expression of DUX4 in skeletal muscle activates the expression of stem cell and germline genes, and, when overexpressed in somatic cells, DUX4 can ultimately lead to cell death.[1] FunctionDUX4_HUMAN Involved in transcriptional regulation. May regulate microRNA (miRNA) expression.[2] [3] References
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Categories: Homo sapiens | Large Structures | Cheng N | Dong X | Meng G | Zhang H
