An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain an additional tiers: the upstream MAP4K. The kinases in each tier phosphorylate and activate the kinase in the downstream tier to transmit a signal within a cell.

The initiation of the activity of the inactive enzyme MAP kinase kinase (MAPKK).

Addition of multiple ubiquitin groups to a protein, forming a ubiquitin chain.

The process of introducing a phosphate group on to a protein.

The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of a ubiquitin group, or multiple ubiquitin groups, to the protein.

Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating an increase or decrease in the concentration of solutes outside the organism or cell.

The initiation of the activity of the inactive enzyme JUN kinase kinase (JNKK) activity. JNKKs are involved in a signaling pathway that is primarily activated by cytokines and exposure to environmental stress.

The phosphorylation of peptidyl-serine to form peptidyl-O-phospho-L-serine.

Any process that stops, prevents, or reduces the frequency, rate or extent of the assembly of actin filament bundles.

Any process that activates or increases the frequency, rate or extent of cell death by apoptotic process.

Any process that activates or increases the frequency, rate or extent of MAP kinase activity.

Any process that activates or increases the frequency, rate or extent of JUN kinase activity.

Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.

The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).

The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).

Any process that activates or increases the frequency, rate or extent of viral transcription.

The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers; protein oligomers may be composed of different or identical monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.

All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.