List of effect terms
  • acetylation
    • one acetyl group at least is attached to a molecule; posttranslational modification of proteins, generally at the N-terminus
  • amidation
    • addition of an amide group from a glycine to a protein amino acid [1]
  • activation
    • increase of protein activity; it means that the reactions going out from the target molecule would follow after this reaction
  • assembly
    • congregation of molecules in a certain subcellular location (e.g. membranous lipid rafts); term does not emphasize direct interaction
  • binding
    • any kind of chemical/physical bond (covalent bond, hydrogen bond, ion complex, Van-der-Waals) that is established between reaction partners - if not defined more stringently as condensation, acetylation etc.
  • carboxylation
    • addition of a carboxy group to a protein amino acid [1]
  • cleavage
    • peptide bond between amino acids is cleaved by an endoprotease
  • competition
    • two or more molecules competing for a reaction partner/ signal
  • condensation
    • chemical reaction forming a new chemical bond while setting free molecular water
  • conjugation
    • coupling of a molecule with at least one ubiquitin-like molecule (e.g. Nedd8/Rub1)
  • deacetylation
    • removement of an acetyl group
  • deamidation
    • removement of an amide group
  • decarboxylation
    • removement of a carboxy group
  • decrease of abundance
  • decrease of cleavage
  • decrease of folding
  • decrease of phosphorylation
    • indirect effect, can occur via dephosphorylation or via inhibition of phosphorylation
  • decrease of processing
  • decrease of secretion
  • decrease of transport
  • decrease of ubiquitination
  • deconjugation
  • deglycosylation
    • removement of a glycosyl group
  • degradation
    • breakdown of a molecule (leaving behind protein remnants; mediated by enzymes, proteasome)
  • dehydroxylation
    • removement of a hydroxy group
  • demethylation
    • removement of a methyl group
  • demyristoylation
    • removement of a myristoyl moiety
  • denitration
  • denitrosylation
    • removement of a nitrosyl group
  • depalmitoylation
    • removement of a palmitoyl moiety
  • dephosphorylation
    • catalyzed separation of a phosphate group from a molecule (mediated by a phosphatase)
  • desulfation
    • removement of a sulfate group
  • destabilization
    • additional association of a protein decreases the stability/affinity of an existing complex
  • dissociation
    • breakup of a complex
  • DNA binding
    • binding of proteins (transcription factors) to DNA
  • exchange
    • catalyzed replacement of a group by another (e.g. exchange of G-protein associated GDP with GTP by a GEF)
  • expression
    • transfer of information encoded in the DNA (nucleotide sequence) into the protein (amino acid sequence); reactions with effect expression include several steps: transcription, splicing, capping, and translation.
  • glycosylation
    • transfer of one or more glycosyl groups to a molecule, resulting in a glycoprotein; posttranslational modification
    • N-glycosylation
    • O-glycosylation
  • hydrolysis
    • catalyzed splitting of a chemical bond with the consumption of water
  • hydroxylation
    • addition of a hydroxy group to a protein amino acid [1]
  • increase of abundance
  • increase of folding
  • increase of secretion
  • increase of transport
  • inhibition
    • decrease of protein activity
    • means that the reactions going out from the target molecule would
      • stop after this reaction or would
      • follow if this reaction would not signal;
  • interaction
    • binary relation which states nothing about directionality between two molecules with yet undefined mechanism; both molecules are entered in the 'molecules upstream' list
  • isomerization
    • directed conformational change between cis- and trans-conformation of a peptide chain
  • methylation
    • posttranslational modification, covalent transfer of a methyl group to a substrate
  • myristoylation
    • covalent or non-covalent attachment of a myristoyl moiety to a protein amino acid [1]
  • nitration
  • nitrosylation
    • covalent transfer of NO to a substrate; S-nitrosylation (transfer of NO to Cys-residues) of a protein controls its activity similar to O-phosphorylation
  • oligomerization
    • assembly of a complex; resumes the terms homo- and heteromerization and di-/trimerization as well
  • palmitoylation
    • covalent or non-covalent attachment of a palmitoyl moiety to a protein amino acid [1]
  • phosphorylation
    • catalyzed binding of a phosphate group to a molecule (for example mediated by protein kinases)
  • prenylation
    • class of lipid modification involving covalent addition of either farnesyl (15-carbon) or geranylgeranyl (20-carbon) isoprenoids to conserved cysteine residues at or near the C-terminus of proteins [2]
  • processing
    • is used as a term for the catalyzed maturation of proteins (usually associated with proteolytic cutting of the signal peptide or more)
  • redox reaction
    • a reaction in which one or more electrons are transferred
  • regulation of abundance
    • abundance of a protein is regulated in an undefined way
  • regulation of acetylation
    • acetylation status of a protein is regulated in an undefined way
  • regulation of activity
    • activity of a protein is regulated in an undefined way
  • regulation of amidation
    • amidation status of a protein is regulated in an undefined way
  • regulation of carboxylation
    • carboxylation status of a protein is regulated in an undefined way
  • regulation of cleavage
    • cleavage of a protein is regulated in an undefined way
  • regulation of degradation
    • degradation of a protein is regulated in an undefined way
  • regulation of folding
    • folding of a protein is regulated in an undefined way
  • regulation of glycosylation
    • glycosylation status of a protein is regulated in an undefined way
  • regulation of localization
    • localization of a protein is regulated in an undefined way
  • regulation of methylation
    • methylation status of a protein is regulated in an undefined way
  • regulation of N-glycosylation
    • N-glycosylation status of a protein is regulated in an undefined way
  • regulation of nitration
    • nitration status of a protein is regulated in an undefined way
  • regulation of oxidation
    • oxidation status of a protein is regulated in an undefined way
  • regulation of phosphorylation
    • phosphorylation status of a protein is regulated in an undefined way
  • regulation of secretion
    • secretion of a protein is regulated in an undefined way
  • regulation of stability
    • stability of a protein is regulated in an undefined way
  • regulation of sulfation
    • sulfation status of a protein is regulated in an undefined way
  • regulation of transport
    • transport of a protein is regulated in an undefined way
  • regulation of ubiquitination
    • ubiquitination status of a protein is regulated in an undefined way
  • stabilization
    • additional association of a protein enhances the stability of an already existing complex
  • sulfation
    • addition of a sulfate group as an ester to a protein amino acid [1]
  • transactivation
    • general term for gene activation, involves transcription
  • translocation
    • indicates the regulated transfer of a signaling molecule to another subcellular location (often from cytosol to nucleus)
  • transregulation
    • direct transcriptional regulation by binding of a transcription factor to its cognate site within the gene regulatory region; the term transregulation does not differentiate between activation or inhibition.
  • transrepression
    • repression of a gene by a transcription factor
  • ubiquitination
    • coupling of a molecule with ubiquitin
  • unknown
    • indicates that it is not known, if the signal acceptor in the semantic reaction is activated or inhibited
 
[1] Definition taken from GO; Gene Ontology: tool for the unification of biology. The Gene Ontology Consortium (2000) Nature Genet. 25: 25-29.
[2] Zhang F. L., Casey P. J.; Protein prenylation: molecular mechanisms and functional consequences. (1996), Annu. Rev. Biochem. 65, 241-269.

back to reaction