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. 2013 Aug 9;69(1):12–20. doi: 10.1093/jac/dkt316

Table 3.

Phenotypes and genotypes of isolates with G190E and a site-directed mutant with G190G

Isolatea Reference Fold resistance
Mutationsb
NVP EFV ETR RPV
21 176 Stanford University 200 200 200 200 V60I, D67G, S68G, K70R, L74V, I135V, E138A, K173E, I178M, G190E, R211A, K219N, V245E, E248D, D250E, A272P, T286A
21176G190E→G 0.7 1.2 2.3 2.0 V60I, D67G, S68G, K70R, L74V, I135V, E138A, K173E, I178M, R211A, K219N, V245E, E248D, D250E, A272P, T286A
24 746 Stanford University 200 200 94 28 K20R, D67N, K70R, K122E, I135V, E138A, S162C, M184MV, G190E, T200A, F214M, T215F, K219Q, L228H, V245E
59 209 Stanford University 200 200 110 7.3 V35L, D67N, K70R, K101R, K103R, D177E, I178M, G190E, G196E, T200A, E204N, R211K, T215F, K219E, L228H, V245E, A272P, T286A, E297K
16 894 S.-Y. Rhee 200 200 NA NA K20R, V35I, E36EK, M41L, K43N, D67N, I135V, G190E, T200A, L210W, T215Y, K219N, A272P, K277R
63 800 S.-Y. Rhee 200 200 NA NA S48T, D67N, T69DN, K70GR, L74V, K101KR, K104KR, D121Y, K122E, D123E, E169D, D177E, M184V, G190E, T200A, Q207K, F214L, K219EQ, K275KR, V276VI, P294T, E297KR
55 467 S.-Y. Rhee 200 200 NA NA D67G, S68G, L74V, Y115F, K122Q, D123E, I135T, I142V, D177E, M184V, V189I, G190E, T200A, T215F, K219E, V245E, E297R
127 280 G. L. Melikian 200 200 NA NA K46KIM, K65R, V75L, V90VI, K102KR, K103KR, Y115F, D123E, E169D, D177E, V179VI, G190E, T200A, R211K
33 143 W. Huang 200 200 NA NA K20R, M41L, K43Q, E44D, V60I, D67N, L74V, K102R, V118I, K122E, D123N, I135 V, S162Y, I178F, G190E, G196R, Q197K, T200A, Q207N, L210W, R211K, T215Y, K219N, E224N, A272P, T286A, E297K
91 738 J. D. Baxter 200 181 NA NA M41L, D67N, R72RG, D86DN, K122E, F160FL, K166R, D177E, V179G, G190E, T200A, Q207E, H208HD, L210W, T215Y, D218DE, K219N, K220KR, L228H

NVP, nevirapine; EFV, efavirenz; ETR, etravirine; RPV, rilpivirine; NA, not available.

aThe creation of the cloned site-directed mutant 21176G190E→G is described in the Methods section. The NRTI susceptibility results indicated slightly higher levels of decreased susceptibility than the 21 176 clone containing G190E, suggesting that the dramatic reductions in NNRTI resistance were not a result of decreased replication.

bG190E is shown in bold and is underlined. Mutations in bold include L74V, which has been reported to partially restore the impaired replication capacity of viruses containing G190E,21,22 and the accessory NNRTI-resistance mutation E138A.