Table 2.
Total number of GI insertions into the tRNA genes corresponding to the same codons in the five strains
| tRNA | Iso-accepting tRNAa | Numberb | Insertion hitsc |
|
| Exp. | Obs. | |||
| Ala* | Ala-GCC | 5 | 2.50 | 5 |
| Ala-GCA | 5 | 2.50 | 0 | |
| Arg* | Arg-CGT | 5 | 0.75 | 0 |
| Arg-CGG | 5 | 0.75 | 0 | |
| Arg-AGG | 5 | 0.75 | 0 | |
| Arg-AGA | 5 | 0.75 | 3 | |
| Asn | Asn-AAC | 5 | 3.00 | 3 |
| Cys | Cys-TGC | 5 | 1.00 | 1 |
| Gly | Gly-GGC | 5 | 0.50 | 1 |
| Gly-GGA | 5 | 0.50 | 0 | |
| Leu | Leu-CTT | 5 | 0.25 | 0 |
| Leu-TTG | 5 | 0.25 | 0 | |
| Leu-TTA | 5 | 0.25 | 1 | |
| Leu-CTA | 5 | 0.25 | 0 | |
| Lys | Lys-AAA | 5 | 1.00 | 1 |
| Met | Met-ATG | 13 | 3.00 | 3 |
| Phe | Phe-TTC | 5 | 1.00 | 1 |
| Pro* | Pro-CCC | 5 | 2.50 | 0 |
| Pro-CCA | 5 | 2.50 | 5 | |
| Ser | Ser-TCG | 5 | 2.75 | 4 |
| Ser-AGC | 5 | 2.75 | 3 | |
| Ser-TCC | 5 | 2.75 | 0 | |
| Ser-TCA | 5 | 2.75 | 4 | |
| Thr* | Thr-ACG | 5 | 1.75 | 2 |
| Thr-ACC | 10 | 3.50 | 5 | |
| Thr-ACA | 5 | 1.75 | 0 | |
| Tyr | Tyr-TAC | 5 | 5.00 | 5 |
a
The iso-accepting tRNA in the five strains. The letters in front of a hyphen stand for the amino acid carried by tRNA, and the letters behind a hyphen stand for the codon corresponding to tRNA
b
The total number of each iso-accepting tRNA in the five strains
c
The number of insertions in the given iso-accepting tRNA. The expected number (Exp.) is the number of the random insertions in the given iso-accepting tRNA. The observed number (Obs.) is the number of GIs associated with the given iso-accepting tRNA
*
Statistical significance to the level P<0.05 in χ 2 test