Sequence alignment between 2pc0(A) and UniProt seq Q903N5 (Q903N5_9HIV1):

Q903N5 (Q903N5_9HIV1): Protease (Fragment) from Human immunodeficiency virus 1
                 10        20        30        40        50        60        70        80        90         
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
UniProt: PQITLWRRPLVTIKIGGQLKEALLDTGADDTVLEEMNLPGRWKPKMIGGIGGFIKVRQYDQILIEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNF
         ......X............................................................................................
PDB seq: PQITLWKRPLVTIKIGGQLKEALLDTGADDTVLEEMNLPGRWKPKMIGGIGGFIKVRQYDQILIEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNF
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
               1010      1020      1030      1040      1050      1060      1070      1080      1090