Figure 1

PQS analysis within the LTR region of lentiviruses (our reference HIV-1 group M is at the top of the list). GGG tracts are shown in red and bold; bulged tracts (e.g. GXGG that do not overlap with adjacent GGG tracts) are shown in red, bold and italics. Lower case letters that specify the SIV strain refer to the simian type they were first identified from (e.g. SIVcpz from chimpanzee or Pan troglodytes troglodytes, SIVsm from sooty mangabey monkey or Cercocebus atys). A complete list of PQS in all lentiviruses along with references and host species is provided in Supporting Table S1.