Term Name:	6-[(1-deoxy-D-ribityl)methyl]-5-[(1E)-3-oxobut-1-en-1-yl]uracil
Synonyms:	1,2-dideoxy-1-[1,2,3,6-tetrahydro-2,6-dioxo-5-[(1E)-3-oxo-1-buten-1-yl]-4-pyrimidinyl]-D-ribo-hexitol, 1,2-dideoxy-1-{2,6-dioxo-5-[(1E)-3-oxobut-1-en-1-yl]-1,2,3,6-tetrahydropyrimidin-4-yl}-D-ribo-hexitol
Definition:	A nucleobase analogue that is uracil substituted with a (1-deoxy-D-ribityl)methyl group at position 6 and a (1E)-3-oxobut-1-en-1-yl group at position 5; one of 20 modifications to the potent microbial riboflavin-based metabolite antigen 5-(2-oxopropylideneamino)-6-D-ribityl aminouracil (5-OP-RU), an activator of mucosal-associated invariant T (MAIT) cells when presented by the MR1 protein (reported in MED:32123373).
Ontology:	ChEBI [CHEBI:149716]  ( EBI )