Table 1 Set of 58 genes selected for targeted analysis.

From: Mutations in sphingolipid metabolism genes are associated with ADHD

Enzyme

Gene

Previous association with ADHD (ref.)

Serine-palmitoyl transferase

SPTLC1

Association/trend with gene-related region62,67

SPTLC2

 

SPTLC3

Association/trend with gene-related region62,67

SPTSSA

 

SPTSSB

Association with gene-related CNV69

3-Ketodihydrosphingosine reductase

KDSR

 

Ceramide synthase

CERS1

 

CERS2

 

CERS3

 

CERS4

 

CERS5

 

CERS6

 

Dihydroceramide desaturase

DEGS1

 

DEGS2

 

Fatty acid elongases

ELOVL1

 

ELOVL2

 

ELOVL3

 

ELOVL4

 

ELOVL5

 

ELOVL6

Trend associated SNP66

ELOVL7

Gene-related CNV65

Ceramide kinase

CERK

 

Sphingomyelin synthase

SMS1

 

SMS2

 

Sphingomyelinase

SMPD1

Gene-related CNV69

SMPD2

 

SMPD3

 

SMPD4

Association with gene-related region68

SMPDL3A

Association with gene-related region67

SMPDL3B

 

ENPP7

 

UDP-glucose ceramide glucosyltransferase

UGCG

Association with gene-related region67

UDP-galactosyltransferase 8

UGT8

 

Galactosylceramidase

GALC

 

Beta-1-4-galactosyltransferase 6

B4GALT6

Association with gene-related region67

Galactose-3-O-sulfotransferase

GAL3ST1

 

Alkaline ceramidase

ACER1

 

ACER2

 

ACER3

Association/trend with gene-related region12,64

Acid ceramidase

ASAH1

 

ASAH2

 

Sphingosine kinase

SPHK1

 

SPHK2

 

S1P-phosphatase

SGPP1

 

SGPP2

 

S1P lyase

SGPL1

 

S1P-receptor

S1PR1

 

S1PR2

 

S1PR3

Association/trend with gene-related region62,67

S1PR4

 

S1PR5

 

Fatty acid desaturase

FADS1

 

FADS2

Association with SNPs in the gene15,63,66

FADS3

Association/trend with gene-related region64,107

N-SMase activation associated factor

NSMAF

 

Ceramide transfer protein

COL4A3BP