Functions as a scaffold for the assembly of a multiprotein mitogen-activated protein kinase (MAPK) complex. MAPK scaffold proteins have binding sites for MAPK pathway kinases as well as for upstream signaling proteins.

oxidoreductase activity, acting on diphenols and related substances as donors, cytochrome as acceptor

Catalysis of an oxidation-reduction (redox) reaction in which a diphenol, or related compound, acts as a hydrogen or electron donor and reduces a cytochrome.

The continuation of translation beyond a stop codon by the use of a special tRNA that recognizes the UGA codon as a modified amino acid, rather than as a termination codon.

Catalysis of the reaction: protoporphyrinogen-IX + O2 = protoporphyrin-IX + H2O2.

oxidoreductase activity, acting on peroxide as acceptor

Catalysis of an oxidation-reduction (redox) reaction in which the peroxide group acts as a hydrogen or electron acceptor.

The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure.

Any process that modulates the extent to which the two centrioles within a centrosome remain tightly paired; may be mediated by the assembly and disassembly of a proteinaceous linker.

The joining together of exons from one or more primary transcripts of nuclear messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced.

Any process that modulates the frequency, rate or extent of DNA binding, selective interaction with deoxyribonucleic acid.

Catalysis of the phosphorylation of ribosomal protein S6.

Enables the directed movement of a purine nucleoside, a purine base covalently bonded to a ribose or deoxyribose sugar, into, out of, within or between cells.

vascular endothelial growth factor receptor activity

Combining with vascular endothelial growth factor to initiate a change in cell activity.

The re-formation of a broken phosphodiester bond in the DNA backbone, carried out by DNA ligase, as occurs during DNA repair.