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The 5'-flanking region of human gamma-glutamylcysteine synthetase-heavy subunit (gamma-GCS-HS) was characterised by creating a series of chloramphenicol acetyl transferase (CAT) reporter deletion constructs. Analysis of various deleted CAT constructs revealed that a putative AP-1 consensus sequence is required to direct the constitutive and oxidant-mediated promoter activity. Gel mobility shift and mutation analysis of the sequence (-269 to -263 bp), showed binding of AP-1 is involved in the oxidant-mediated regulation of gamma-GCS-HS promoter activity.  相似文献   

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