Any process that stops, prevents, or reduces the frequency, rate or extent of signal transduction mediated by the ERK5 cascade.
Synonyms:
exact_synonym:
down regulation of BMK cascade; downregulation of BMK cascade; negative regulation of BMK cascade; negative regulation of BMK signaling pathway; negative regulation of BMK signalling pathway; negative regulation of BMK1 cascade; negative regulation of ERK5 signaling pathway; negative regulation of MAPK7 cascade