Table 1.
Percent Nucleotide Identity and Amino Acid Similarity of HTLV4(1863LE) with other PTLV Prototypes1.
| HTLV-1 (ATK) | HTLV-2 (MoT) | HTLV-2 (Efe) | STLV-2 (PanP) | STLV-2 (PP1664) | HTLV-3 (2026ND) | STLV-3 (TGE2117) | |
| Genome | 62.0 | 70.7 | 70.8 | 70.4 | 70.8 | 63.2 | 63.5 |
| LTR | 45.2 | 63.2 | 62.5 | 62.5 | 64.7 | 42.9 | 45.7 |
| gag | 70.4 (82.0) | 73.2 (85.9) | 74.6 (85.9) | 74.7 (85.0) | 74.8 (86.3) | 68.3 (83.6) | 68.6 (82.7) |
| p19M2 | (68.5) | (77.5) | (79.1) | (79.1) | (79.1) | (78.2) | (71.9) |
| p24C2 | (90.2) | (91.6) | (91.6) | (91.5) | (92.6) | (89.3) | (90.2) |
| p15NC2 | (81.5) | (84.0) | (81.5) | (81.5) | (84.0) | (76.5) | (74.1) |
| pro | 59.0 (61.9) | 66.7 (70.8) | 66.5 (59.3) | 70.0 (59.6) | 67.0 (60.0) | 64.1 (65.5.) | 64.7 (60.0) |
| pol | 63.9 (68.0) | 71.4 (78.7) | 71.5 (78.6) | 71.1 (73.3) | 71.2 (78.7) | 64.9 (71.4) | 65.5 (71.2) |
| env | 65.8 (75.9) | 73.1 (85.3) | 72.8 (86.0) | 72.0 (84.9) | 72.0 (85.5) | 68.5 (79.4) | 67.2 (78.9) |
| SU3 | (70.4) | (80.1) | (81.4) | (80.4) | (81.4) | (72.9) | (71.7) |
| TM3 | (84.7) | (94.4) | (93.8) | (92.7) | (92.7) | (90.5) | (91.0) |
| rex | 76.0 (63.9) | 79.5 (74.1) | 81.1 (75.3) | 78.7 (65.2) | 80.7 (68.8) | 72.7 (59.4) | 72.5 (57.7) |
| tax | 75.9 (82.6) | 80.0 (90.9) | 80.1 (89.5) | 76.7 (85.5) | 77.2 (90.0) | 74.2 (82.6) | 74.1 (82.6) |
1 amino acid similarity in parentheses; strain names given in parentheses
2 M, matrix protein; C, capsid; NC, nucleocapsid
3 SU, surface protein; TM, transmembrane