Sequence alignment between 4m7g(A) and UniProt seq P24664 (TRYP_SACER):

P24664 (TRYP_SACER): Trypsin from Saccharopolyspora erythraea
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-------
UniProt: IVGGEDANVQDHPFTVALVTPDGQQFCGGTLAAPNKVVTAAHCTVGSQPADINVVSGRTVMSSNIGTVSKVTNVWVHPEYQDAAKGFDVSVLTLEAPVKEAPIELAKADDAGYAPDTAATILGWGNTSEGGQQADHLQKATVPVNSDDTCKQAYGEYTPNAMVCAGVPEGGVDTCQGDSGGPMVVNNKLIGVTSWGEGCARPGKPGVYARVGAYYDVLMEQINAGAV
         ................................................................X..............................................................................................X...................................................................
PDB seq: IVGGEDANVQDHPFTVALVTPDGQQFCGGTLAAPNKVVTAAHCTVGSQPADINVVSGRTVMSSNEGTVSKVTNVWVHPEYQDAAKGFDVSVLTLEAPVKEAPIELAKADDAGYAPDTAATILGWGNTSEGGQQADHLQKATVPVNSDDTCKQAYGEYTPDAMVCAGVPEGGVDTCQGDSGGPMVVNNKLIGVTSWGEGCARPGKPGVYARVGAYYDVLMEQIN----
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---    
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220