abnormal histone H3-K14 ubiquitination during vegetative growth abolished histone H3-K14 ubiquitination at pericentric heterochromatin region during vegetative growth 2026-09-01T10:53:52Z PomBase:pc A cellular process phenotype observed in the vegetative growth phase of the life cycle in which ubiquitination of lysine at position 14 of histone H3 in pericentric heterochromatin regions does not occur.