obsolete negative regulation of histone H2B conserved C-terminal lysine ubiquitination (obsolete GO:2001174)
negative regulation of budding yeast H2B K123 ubiquitination
related
negative regulation of fission yeast H2B K119 ubiquitination
related
negative regulation of mammalian H2B K120 ubiquitination
related
OBSOLETE. Any process that stops, prevents or reduces the frequency, rate or extent of histone H2B conserved C-terminal lysine ubiquitination.