Chains and heterogens:
PDB Chain Sequences:
>1uhnA (A:) dpellardtvfsvseiealyelfkkissaviddglinkeefqlalfktnkkeslfadrvf dlfdtkhngilgfeefaralsvfhpnapiddkihfsfqlydlkqqgfierqevkqmvvat laesgmnlkdtviediidktfeeadtkhdgkidkeewrslvlrhpsllknmtlqylkdit ttfpsfvfh