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Table 8 The infectivity of B-Env clones and the derived mutants

From: Impact of amino acid substitutions in the V2 and C2 regions of human immunodeficiency virus type 1 CRF01_AE envelope glycoprotein gp120 on viral neutralization susceptibility to broadly neutralizing antibodies specific for the CD4 binding site

 

Relative infectivity (RLU)a

 

Mutation(s)b

Env clone

Wild-type

N186Q

N197Q

N186Q/N197Q

D185G

D185N

D185E

E185D

D185G/N197Q

E185D/N197Q

pNL4-3

100

71

8

0

107

58

39

 

0

 

QH0692.42

958

 

365

 

1187

809

870

 

377

 

SC422661.8

657

 

324

 

569

19

503

 

395

 

pWITO4160.33

49

 

5

    

109

 

0

TRO.11

294

 

69

    

306

 

107

  1. aInfectivity of Env-recombinant virus was evaluated using U87.CD4.CXCR4 and U87.CD4.CCR5 cells. Relative infectivity of the virus was calculated by comparing it with the luciferase activity of pNL-envCT (pNL4-3)-infected U87.CD4.CXCR4 cells, which was defined as 100 relative light units (RLU).
  2. bSingle or multiple amino acid mutations were introduced into B-Env-recombinant viruses. Amino acid numbering is based on HXB2 Env gp120.