DPH5

Protein-coding gene in the species Homo sapiens From Wikipedia, the free encyclopedia

Diphthine synthase is an enzyme that in humans is encoded by the DPH5 gene.[5][6]

AliasesDPH5, CGI-30, HSPC143, NPD015, AD-018, diphthamide biosynthesis 5
End101,026,088 bp[1]
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DPH5
Identifiers
AliasesDPH5, CGI-30, HSPC143, NPD015, AD-018, diphthamide biosynthesis 5
External IDsOMIM: 611075; MGI: 1916990; HomoloGene: 6471; GeneCards: DPH5; OMA:DPH5 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001077394
NM_001077395
NM_015958

NM_027193

RefSeq (protein)

NP_001070862
NP_001070863
NP_057042

NP_081469

Location (UCSC)Chr 1: 100.99 – 101.03 MbChr 3: 115.89 – 115.93 Mb
PubMed search[3][4]
Wikidata
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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.[6]

References

Further reading

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