Sequence alignment between 2qhc(A) and UniProt seq Q9J2P7 (Q9J2P7_9HIV1):

Q9J2P7 (Q9J2P7_9HIV1): Protease (Fragment) from Human immunodeficiency virus 1
                 10        20        30        40        50        60        70        80        90         
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
UniProt: PQITLWQRPLVTIKIGGQLKEALLDTGADDTVLEEMSLPGRWKPKMIGGIGGFIKVRQYDQILIEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNF
         ..............................................X....................................................
PDB seq: PQITLWQRPLVTIKIGGQLKEALLDTGADDTVLEEMSLPGRWKPKMAGGIGGFIKVRQYDQILIEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNF
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
                 10        20        30        40        50        60        70        80        90