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Table 3 Amino acid inter-species, inter-group, inter-subtype, and intra-subtype divergence among protease, RT, and integrase sequences

From: Natural variation of HIV-1 group M integrase: Implications for a new class of antiretroviral inhibitors

Divergence

Protease

RT

Integrase

Inter-species

   

HIV-1 (789) vs HIV-2 (26)

0.51 ± 0.03

0.40 ± 0.04

0.40 ± 0.02

Inter-group

   

group M (764) vs O (21)

0.29 ± 0.02

0.22 ± 0.01

0.18 ± 0.01

group M (764) vs N (4)

0.21 ± 0.02

0.14 ± 0.01

0.11 ± 0.01

group O (21) vs N (4)

0.30 ± 0.02

0.21 ± 0.01

0.18 ± 0.01

Inter-subtype

   

Subtype A (71) vs B (145)

0.11 ± 0.03

0.10 ± 0.01

0.07 ± 0.01

Subtype A (71) vs C (337)

0.10 ± 0.03

0.09 ± 0.01

0.07 ± 0.01

Subtype B (145) vs C (337)

0.11 ± 0.02

0.09 ± 0.01

0.07 ± 0.01

Intra-subtype

   

Subtype A (71)

0.05 ± 0.02

0.07 ± 0.02

0.05 ± 0.01

Subtype B (145)

0.07 ± 0.03

0.06 ± 0.01

0.05 ± 0.02

Subtype C (337)

0.06 ± 0.03

0.06 ± 0.01

0.04 ± 0.01

  1. Divergence was defined as the mean proportion of amino acid difference between all sequence pairs. The number of sequences compared are within parentheses.