Chains and heterogens:
PDB Chain Sequences:
>1uu5A (A:) eirslcelygywsgngyellnnlwgkdtatsgwqctyldgtnnggiqwstawewqgapdn vksypyvgkqiqrgrkisdinsmrtsvswtydrtdiranvaydvftardpdhpnwggdye lmiwlaryggiypigtfhsqvnlagrtwdlwtgyngnmrvysflppsgdirdfscdikdf fnylernhgypareqnlivyqvgtecftggparftcrdfradlw