The contribution to T cell-specific expression by other promoter sites was assessed in a transient expression assay with IL-3 promoter constructs linked to a luciferase gene , focusing initially on the core binding factor ( CBF ) site , which is footprinted in vivo upon T cell activation .
the contribution to t cell-specific expression by other promoter sites was assessed in a transient expression assay with il-3 promoter constructs linked to a luciferase gene , focusing initially on the core binding factor ( cbf ) site , which is footprinted in vivo upon t cell activation .
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