increased protein ubiquitination during vegetative growth abnormal histone H2B-K119 ubiquitination during vegetative growth increased histone H2B-K119 ubiquitination during vegetative growth 2025-08-13T13:08:26Z A cellular process phenotype observed in the vegetative growth phase of the life cycle in which ubiquitination of lysine at position 119 of histone H2B is increased. Lysine 119 corresponds to the conserved C-terminal lysine of H2B. vw