negative regulation of SMAD protein signal transduction
Any process that decreases the rate, frequency or extent of the SMAD protein signaling pathway.
GO:0060390
regulation of SMAD protein signal transduction
is_a
GO:0090101
negative regulation of transmembrane receptor protein serine/threonine kinase signaling pathway
is_a
GO:1902532
negative regulation of intracellular signal transduction
is_a
GO:0060395
SMAD protein signal transduction
negatively_regulates
negative regulation of SMAD protein import into nucleus
narrow
negative regulation of SMAD protein nuclear translocation
narrow