Table 1.

The performance of BLAST at E-value threshold 10.

S. No.	Method	Sensitivity	Specificity	Accuracy*
1	Discrimination between aaRSs and Non-aaRSs	74.36	60.68	67.52
2	Discrimination between class-1 and class-2 aaRSs	71.7	73.85	72.77

* The number of aaRSs/class-1 and non-aaRSs/class-2 having no hit (target) were considered as false negative and false positive respectively.