Chains and heterogens:
PDB Chain Sequences:
>1b89A (A:) rlaeleefingpnnahiqqvgdrcydekmydaakllynnvsnfgrlastlvhlgeyqaav dgarkanstrtwkevcfacvdgkefrlaqmcglhivvhadeleelinyyqdrgyfeelit mleaalglerahmgmftelailyskfkpqkmrehlelfwsrvnipkvlraaeqahlwael vflydkyeeydnaiitmmnhptdawkegqfkdiitkvanvelyyraiqfylefkplllnd llmvlsprldhtravnyfskvkqlplvkpylrsvqnhnnksvneslnnlfiteedyqalr tsidaydnfdnislaqrlekheliefrriaaylfkg
>1b89A (A:) rlaeleefingpnmydaakllynnvsnfgrlastlvhlgeyqaavdgarkanstrtwkev cfacvdgkefrlaqmcglhivvhadeleelinyyqdrgyfeelitmleaalglerahmgm ftelailyskfkpqkmrehlelfwsrvnipkvlraaeqahlwaelvflydkyeeydnaii tmmnhptdawkegqfkdiitkvanvelyyraiqfylefkplllndllmvlsprldhtrav nyfskvkqlplvkpylrsvqnhnnksvneslnnlfiteedyqalrtsidaydnfdnisla qrlekheliefrriaaylfkg