ID 3.4.23.16 DE HIV-1 retropepsin. AN human immunodeficiency virus type 1 protease. CA Specific for a P1 residue that is hydrophobic, and P1' variable, CA but often Pro. CC -!- Present in human immunodeficiency virus type 1. CC -!- Contributes to the maturation of the viral particle, and is a target CC of antiviral drugs. CC -!- Active enzyme is a dimer of identical 11-kDa subunits. CC -!- Similar enzymes occur in other retroviruses. CC -!- Belongs to peptidase family A2. DR O93215, POL_HV190 ; O12158, POL_HV192 ; O89290, POL_HV193 ; DR Q9QBY3, POL_HV196 ; Q9QBZ9, POL_HV197 ; O41798, POL_HV19N ; DR P03369, POL_HV1A2 ; Q77373, POL_HV1AN ; P03366, POL_HV1B1 ; DR P04587, POL_HV1B5 ; Q73368, POL_HV1B9 ; P03367, POL_HV1BR ; DR P05960, POL_HV1C4 ; P04589, POL_HV1EL ; Q75002, POL_HV1ET ; DR P04585, POL_HV1H2 ; P12498, POL_HV1J3 ; P20875, POL_HV1JR ; DR P0C6F2, POL_HV1LW ; Q9QBZ1, POL_HV1M2 ; P04588, POL_HV1MA ; DR P05961, POL_HV1MN ; Q9QBZ5, POL_HV1MP ; Q79666, POL_HV1MV ; DR P12497, POL_HV1N5 ; P18802, POL_HV1ND ; P20892, POL_HV1OY ; DR P05959, POL_HV1RH ; Q9WC54, POL_HV1S2 ; Q9WC63, POL_HV1S9 ; DR O89940, POL_HV1SE ; P24740, POL_HV1U4 ; Q9Q720, POL_HV1V9 ; DR Q9QSR3, POL_HV1VI ; P35963, POL_HV1Y2 ; Q9IDV9, POL_HV1YB ; DR O91080, POL_HV1YF ; P12499, POL_HV1Z2 ; P17283, POL_SIVCZ ; DR Q1A249, POL_SIVEK ; Q02836, POL_SIVG1 ; P22382, POL_SIVGB ; DR P05896, POL_SIVM1 ; Q1A267, POL_SIVMB ; P05897, POL_SIVMK ; DR P12502, POL_SIVS4 ; P19505, POL_SIVSP ; Q8AII1, POL_SIVTN ; DR P27973, POL_SIVV1 ; P27980, POL_SIVVG ; P05895, POL_SIVVT ; //