HML and HMRdoi:10.1007/978-1-4020-6754-9_7704The left (α) and right (a) mating type gene cassettes, respectively, in chromosome 3 of yeast. These elements are expressed only when transposed to the mating type, MAT site. Both of these loci are...Springer Netherlands...
In contrast, HMR silencing spreads bidirectionally from the silencers and is limited by sequences termed boundary elements or “silencing barriers” (14). The molecular mechanism of barrier activity i...Bi X, Braunstein M, Shei GJ, Broach JR. The yeast HML I silencer defines a heterochromatin ...