Genetic variation in cytokine promoter regions is postulated to influence susceptibility to infection , but the molecular mechanisms by which such polymorphisms might affect gene regulation are unknown .
genetic variation in cytokine promoter regions is postulated to influence susceptibility to infection , but the molecular mechanisms by which such polymorphisms might affect gene regulation are unknown .
B-other_name I-other_name O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O O O O O O O O O B-other_name I-other_name O O O B-other_name O O O O O O O