| Dataset | GeneRIF Biological Term Annotations |
| Category | structural or functional annotations |
| Type | biological term |
| Description | A quaternary ammonium ion that is the derivative of L-histidine having a 4-amino-4-oxo-3-(trimethylammonio)butyl group at the 2-position of the imidazole ring. (Chemical Entities of Biological Interest Ontology, CHEBI_15949) |
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3 genes co-occuring with the biological term diphthamide in literature-supported statements describing functions of genes from the GeneRIF Biological Term Annotations dataset.