Table 6. Synonymous mutations in the RT region of Palestinian D1 subgenotypes.
| nt position | aa position | Occurrence |
| 555:A/T | V142V | 2 |
| 619:C/T | L168L | 4* |
| 720:C/T | H117H | 1 |
| 774:G/A | Q215Q | 2 |
| 853:A/C | R242R | 1 |
| 888:C/A | V253V | 2 |
| 906:A/C | S259S | 1 |
| 907:T/(A,C) | L260L | 2 |
| 909:G/A | L260L | 1 |
| 969:G/A | R280R | 1 |
| 987:C/(G,T,A) | V286V | 3 |
Positions of the nucleotide (nt) mutation and the correlating amino acid (aa) are presented based on their location in the archived GenBank reference DQ315778. Occurrence reflects the number of samples (patients) in which the mutation was detected. Exchanges marked with (*) are considered polymorphisms due to their prevalence in>10% of the 40 patients.