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family:comment |
This domain is a CTP-dependent riboflavin kinase (RFK), found inarchaea, that catalyses the phosphorylation of riboflavin to form flavin mononucleotide in riboflavin biosynthesis EC:2.7.1.26. Its structure resembles a RIFT barrel, structurally similar to but topologically distinct from bacterial and eukaryotic examples. The N-terminal is a winged helix-turn-helix DNA-binding domain, and the C-terminal half is most similar in sequence to a group of cradle-loop barrels. Swiss:O28174 has this domain attached to Pfam:PF00325.
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