Figure 2

Isotopolog composition of ¹³C-labelled nucleosides from S. frugiperda cells grown with a 1:99 mixture of [U-¹³C₆]glucose and unlabelled glucose added to SF-900 II medium. The filled dot represents a ¹³C₁ isotopolog detected at an abundance well above the natural abundance contribution. Bold lines indicate isotopologs with adjacent ¹³C-labelled carbon atoms that were transferred from the same molecule of [U-¹³C₆]glucose. The numbers give the molar enrichments of the indicated isotopologs.