A total of 186 full-length molecular clones of HIV-1CRF07_BC were constructed.
CRF07_BC subtype is one of the most prevalent HIV-1 strains in MSM population.
All clones from 4 samples, HNXX1302/1304/1305/1306, were not able to infect human PBMCs.
Human PBMCs could be infected by the chimeric full-length clones of 1306N6/N13/N22.
pNL4-3/07BCLTR may significantly improve the in vitro infectivity of CRF07_BC strain.