Raguz-Bolognesi, S.

b-globin locus bm gene expression b-globin locus element figure erythroid activity hypersensitive control region chromatin pac 1 erythroid cells mouse transgene insulator effect fragment probe grosveld globin position b gene deletion property function level adult border dnase b-globin gene position effects chicken b-globin locus chromatin structure e-globin gene analysis activation promoter g-globin dillon enhancer liver result tissue interaction drosophila hs 5. reporter gene hypersensitive site adult erythroid cells natl acad g-globin genes b-globin lcr assay chicken hypersensitive sites transcription philipsen protection fetus structure figure 5 dnase i ltr element stamatoyannopoulo tanimoto e-globin fraser blood 1 nuclease protection wijgerde hs 5 functions speci mapping reporter tewari felsenfeld locus control region