facultative heterochromatin formation
fHC assembly
exact
facultative heterochromatin assembly
exact
The compaction of chromatin into a conformation that is refractory to transcription but that can be converted to euchromatin and allow transcription in specific contexts. These can be temporal (e.g., developmental states or specific cell-cycle stages), spatial (e.g., nuclear localization changes from the center to the periphery or vice versa due to exogenous factors/signals), or parental/heritable (e.g., monoallelic gene expression). In metazoa, this involves the methylation of histone H3K27, and in certain cases methylation of H3K9. On the other hand, in unicellular eukaryotes, only methylation of H3K9 is involved and H3K27 is not methylated.
GO:0031507
heterochromatin formation
is_a
SPAC1006.03c SPBC216.07c SPAC824.04 SPBC30D10.10c SPAC17H9.02 SPCC132.02 SPAC23E2.02 SPAC56F8.09 SPBC16C6.10 SPAC19G12.17 SPBC16D10.07c SPCC736.12c SPBC20F10.05 SPCC24B10.07 SPBC25D12.02c SPBC800.03 SPBP35G2.10 SPCC622.16c SPCC306.04c SPAC7D4.14c SPBC1685.08 SPAC1783.04c SPAC3G9.04 SPBC2D10.17 SPBC428.08c SPAC1B3.17 SPBC1105.04c SPBC146.09c