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Table 1 Presence of codon substitutions associated with resistance to antiretroviral drugs (inhibitors of Reverse Transcriptase and Protease) by sequential analysis and by Line Probe assay in untreated HIV-1 patients.

From: Analysis of HIV-1 drug resistant mutations by line probe assay and direct sequencing in a cohort of therapy naive HIV-1 infected Italian patients

  

Mutations associated with RT resistance to

   

NNRTIs1

Patients' N°3

Viral load4

by sequencing

by Line Probe assay

2

240000

-

K70K/R

4

8900

-

L74/V75 (IR)

5

 

-

L74/V75 (IR)

8

11000

-

F214T215 (IR)

12

160000

-

M41, T69/K70, T69/K70 (IR)

18

120000

-

T69/K70 (IR)

20

120000

-

L74/V75 (IR)

22

13000

-

L74/V75 (IR)

24

4700

-

T69/K70 (IR)

   

NNRTIs 2

9

450000

V108I

-

12

160000

-

-

14

8600

V118I

-

15

24000

K103N, Y181C

-

  

Mutations associated with protease resistance (PIs)

 

Viral load

by sequential analysis

by LIPA

1

49000

V77I

-

2

240000

-

V82V/A

3

42000

L10I/L, A71V/A

-

8

64000

L63P, V77I

-

9

450000

M36I

-

11

16000

M36I

-

12

160000

L10V, M36I

-

14

8600

L10V, M36I

-

15

24000

L63P

-

16

1500

M36I

V82V/A

17

540000

L63P

-

19

73000

V77I

-

20

120000

M36I

-

23

61000

M36I

-

24

4700

L63P

-

25

5800

L63P, V77I

V82V/A

27

170000

V77I

-

  1. Legend: NRTIs1 nucleoside reverse transcriptase inhibitors NNRTIs2: nucleoside reverse transcriptase inhibitors 3Only patients who showed codon changes are reported; 4Viral load: N° of HIV-RNA copies/ml. 5IR: indeterminate results.