Table 1.
Function Prediction | ABF | Schizophrenia | |||||||
---|---|---|---|---|---|---|---|---|---|
dbSNP 137 | Position (bp) | Gene | MAF | SIFT | PolyPhen2 | Beta (SE) | P Value | Beta (SE) | P Value |
rs6579797a | 149998128 | SYNPO | 0.032 | Tolerated | Benign | −2.01 (0.48) | 3.7×10−5c | 1.84 (0.63) | .0017c |
rs17660042 | 150666946 | SLC36A3 | 0.073 | Deleterious | Probably damaging | −1.02 (0.32) | .0018 | 0.94 (1.00) | .010 |
rs2303063 | 147480027 | SPINK5 | 0.47 | Tolerated | Benign | 0.41 (0.18) | .023 | −0.52 (1.03) | .033 |
rs2303067 | 147480955 | SPINK5 | 0.47 | Tolerated | Benign | 0.41 (0.18) | .023 | −0.52 (1.03) | .033 |
rs2961944 | 159835658 | SLU7 | 0.20 | Tolerated | Benign | −0.40 (0.18) | .027 | 0.49 (0.24) | .037 |
rs61740602 | 150646888 | GM2A | 0.12 | Tolerated | Benign | −0.56 (0.26) | .028 | 0.79 (0.29) | .0068 |
rs17551608b | 167835539 | WWC1 | 0.19 | Deleterious | Possibly damaging | 0.42 (0.21) | .041 | −1.09 (0.39) | .0016c |
Note: The table lists nonsynonymous variants from 5q32–35.3 with at least nominal evidence (P < .05) for association with ABF and schizophrenia. SNP rs numbers are based on dbSNP build 137. MAFs are based on maximum likelihood estimates that account for familial relationships. Predicted effects of amino acid changes on protein function are based on the SIFT and PolyPhen2 algorithms, which were obtained with the Ensembl online tool Variant Effect Predictor (VEP). For the association results, positive beta estimates (SE in parentheses) for schizophrenia correspond to increased risk. All 7 of the SNP variants presented here show the expected directions of effect for the 2 traits (ie, decrease in ABF performance corresponds with an increase in schizophrenia risk, and vice versa). ABF, Abstraction and Mental Flexibility; MAFs, Minor Allele Frequencies;
aG199A; aspartic acid substituted for asparagine, D67N.
bC798T; arginine substituted for cysteine, R250C.
cSignificant after Bonferroni correction for multiple testing (α = .05): 407 tests for ABF; 24 tests for risk of schizophrenia.