Furthermore, the recognition of abnormal acylcarnitine profiles mimicking multiple acyl-CoA dehydrogenase deficiency in patients with Brown-Vialetto-Van Laere syndrome (Bosch et al., 2011) has elucidated a link between the putative function of SLC52A3 and SLC52A2 as riboflavin transporters and this neurodegenerative condition. Here, SLC52A2 is linked to riboflavin transporter deficiency.