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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Sequences in the promoter region of the chicken lysozyme gene required for steroid regulation and receptor binding.

We have constructed a series of deletion mutants in the lysozyme promoter region fused to the SV40 T-antigen coding region. Regulated expression was tested after microinjection of the lysozyme deletion mutants into primary cultures of chicken oviduct cells using fluorescent antibodies against T antigen. Deletion of lysozyme gene sequences upstream of position - 164 was accompanied by loss of both progesterone- and glucocorticoid-induced expression. Using the rat liver glucocorticoid receptor for binding studies, two separate binding sites have been identified: a strong binding site that is destroyed by deletion of lysozyme sequences between positions -74 and -39 and a weaker binding site contained between positions -208 and -161 upstream of the lysozyme cap site.[1]

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