|  | Parametric | Nonparametric |
---|
Misacylation | Â | Â | Â |
 | COVE | 68* | 55 |
 | resCOVE | 64 | 64 |
 | Spacer | 55 | 64 |
 | Usage | 38 | 48 |
COVE Res COVE | Â | Â | Â |
 | Spacer | 46 | 46 |
 |  | 64 | 73* |
 | Usage | 67 | 62 |
 |  | 57 | 52 |
Spacer | Usage | 55 | 55 |
Processing | Misacylation | Â | 82*/46 |
 | COVE |  | 82*/82* |
 | res COVE |  | 55/55 |
 | Mis-COVE | 82*/46 | 64/55 |
 | Mis-res COVE | 73*/55 | 64/55 |
 | Mis-Usage | 55/20 | 64/30 |
 | COVE-Usage | 55/90* | 55/80* |
 | Res COVE-Usage | 46/80* | 46/70 |
- For correlations between COVE, the index for capacities to form cloverleaf structures (from tRNAscan SE [37]), and other variables, the first row indicates results using antisense tRNA COVE scores, the second row indicates results for residuals of antisense tRNA COVE scores, calculated from the linear regression between antisense tRNA COVE (dependent) with the COVE score of its corresponding sense tRNA (independent). * indicate that the percentage is significantly greater at P < 0.05 than 50% according to a sign test. The variable 'processing' indicates the presence or absence of antisense tRNA processing by sense RNA maturation. For processing, the first percentage is for processed antisense tRNAs, the second for unprocessed ones. The working hypothesis expects higher percentages for processed than unprocessed antisense tRNAs.