Aliases for DPH5 Gene
External Ids for DPH5 Gene
Previous GeneCards Identifiers for DPH5 Gene
This gene encodes a component of the diphthamide synthesis pathway. Diphthamide is a post-translationally modified histidine residue found only on translation elongation factor 2. It is conserved from archaebacteria to humans, and is targeted by diphtheria toxin and Pseudomonas exotoxin A to halt cellular protein synthesis. The yeast and Chinese hamster homologs of this protein catalyze the trimethylation of the histidine residue on elongation factor 2, resulting in a diphthine moiety that is subsequently amidated to yield diphthamide. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
GeneCards Summary for DPH5 Gene
DPH5 (Diphthamide Biosynthesis 5) is a Protein Coding gene. Among its related pathways are Metabolism of proteins and Gamma carboxylation, hypusine formation and arylsulfatase activation. Gene Ontology (GO) annotations related to this gene include methyltransferase activity and diphthine synthase activity.
UniProtKB/Swiss-Prot for DPH5 Gene
S-adenosyl-L-methionine-dependent methyltransferase that catalyzes four methylations of the modified target histidine residue in translation elongation factor 2 (EF-2), to form an intermediate called diphthine methyl ester. The four successive methylation reactions represent the second step of diphthamide biosynthesis.