negative regulation of silent mating-type cassette heterochromatin formation
Any process that decreases the frequency, rate, or extent of heterochromatin formation at silent mating-type cassette.
GO:0031452
negative regulation of heterochromatin formation
is_a
GO:0090054
regulation of silent mating-type cassette heterochromatin formation
is_a
GO:0030466
silent mating-type cassette heterochromatin formation
negatively_regulates
negative regulation of chromatin silencing at silent mating-type cassette
exact
negative regulation of silent mating-type cassette heterochromatin assembly
exact