Table 3 Frequency of tRNA genes in equine cells for most preferentially used codons in polymerase genes of EIVs
AA | Preferentially used codons | tRNA isotypes in equine cells | Total count | ||
|---|---|---|---|---|---|
PB1 | PB2 | PA | |||
Ala | GCA | GCA | GCA | AGC (27), GGC (0), CGC (8), TGC (10) | 45 |
Gly | GGA | GGA | GGA | ACC (0), GCC (10), CCC (8), TCC (5) | 23 |
Pro | CCA | CCA | CCA | AGG (10), GGG (0), CGG (3), TGG (7) | 20 |
Thr | ACA | ACA | ACA | AGT (9), GGT (0), CGT (3), TGT (7) | 19 |
Val | GTC | GTC | GTG | AAC (12), GAC (3), CAC (16), TAC (6) | 37 |
Ser | TCA | TCA | TCT | AGA (12), GGA (0), CGA (4), TGA (4), ACT (0), GCT (12) | 32 |
Arg | AGA/CGG | CGA/CGG | CGA | ACG (10), GCG (1), CCG (4), TCG (5), CCT (7), TCT (6) | 33 |
Leu | TTG | CTG | CTT | AAG (8), GAG (0), CAG (3), TAG (5), CAA (6), TAA (4) | 26 |
Phe | TTC | TTC | TTT | AAA (0), GAA (13) | 13 |
Asn | AAT | AAT | AAC | ATT (1), GTT (21) | 22 |
Lys | AAA | AAA | AAA | CTT (18), TTT (15) | 33 |
Asp | GAT | GAT | GAT | ATC (1), GTC (10) | 11 |
Glu | GAA | GAA | GAA | CTC (50), TTC (11) | 61 |
His | CAT | CAT | CAC | ATG (1), GTG (12) | 13 |
Gln | CAA | CAA | CAA | CTG (10), TTG (6) | 16 |
Ile | ATT | ATA | ATT | AAT (20), GAT (0), TAT (4) | 24 |
Tyr | TAC | TAC | TAT | ATA (1), GTA (14) | 15 |
Cys | TGC | TGT | TGC | ACA (0), GCA (26) | 26 |