. "Any process that stops, prevents, or reduces the frequency, rate or extent of signal transduction mediated by the ERK1 and ERK2 cascade." . . . "negative regulation of ERK1 and ERK2 cascade" . "down regulation of ERK1 and ERK2 cascade" . "down-regulation of ERK1 and ERK2 cascade" . "downregulation of ERK1 and ERK2 cascade" . "inhibition of ERK1 and ERK2 cascade" . "negative regulation of ERK cascade" . "negative regulation of ERK1 and ERK2 signaling pathway" . "negative regulation of ERK1 and ERK2 signalling pathway" . "negative regulation of ERK1 cascade" . "negative regulation of ERK1/2 cascade" . "negative regulation of ERK2 cascade" . "negative regulation of MAPK1 cascade" . "negative regulation of MAPK3 cascade" . . .