TABLE 2.

In-frame deletion mutants of HIV-1 Vif^a

Name	Deleted region	Substitution	Relative infectivity
Δ1	5–13	AA	5
Δ29	12–18	AAA	5
Δ2	12–23	AA	5
Δ30	16–23	AA	8
Δ19	22–31	AAV	4
Δ3	22–34	AA	6
Δ20	29–34	AA	3
Δ4	33–44	AA	2
Δ21	53–59	AA	6
Δ5	43–59	AA	7
Δ6	58–74	AA	2
Δ7	73–87	AA	1
Δ22	86–92	AAA	4
Δ8	86–98	AA	1
Δ23	90–98	AA	5
Δ9	97–112	AA	1
Δ10	111–128	AA	1
Δ24	121–128	AA	2
Δ11	127–141	AA	4
Δ25	135–141	AA	4
Δ26	140–146	AAA	5
Δ12	140–148	AA	2
Δ27	144–148	AA	4
Δ31	147–158	AAA	1
Δ13	147–163	AAA	6
Δ32	156–160	AAA	2
Δ33	158–163	AAA	5
Δ14	163–170	AA	2
Δ15	169–181	AA	19
Δ28	169–190	AA	30
Δ16	180–190	AA	66
HIV-1/Δvif	26–192	NA	1
HIV-1	NA	NA	100

^aThe positions, introduced amino acids, and nomenclature of the deletions that were introduced into the Vif protein of HIV-1_HXB3 are listed together with their relative abilities to confer infectivity on a vif-deficient HIV-1. Vif function was evaluated as for Table 1. NA, not applicable.