Chains and heterogens:
PDB Chain Sequences:
>1h2kA (A:) maataaeavasgsgepreeagalgpawdesqlrsysfptrpiprlsqsdpraeelienee pvvltdtnlvypalkwdleylqenigngdfsvysasthkflyydekkmanfqnfkprsnr eemkfhefveklqdiqqrggeerlylqqtlndtvgrkivmdflgfnwnwinkqqgkrgwg qltsnllligmegnvtpahydeqqnffaqikgykrcilfppdqfeclypypvhhpcdrqs qvdfdnpdyerfpnfqnvvgyetvvgpgdvlyipmywwhhiesllnggititvnfwykga ptpkrieyplkahqkvaimrniekmlgealgnpqevgpllntmikgryn
>1h2kA (A:) epreeagalgpawdesqlrsysfptrpiprlsqsdpraeelieneepvvltdtnlvypal kwdleylqenigngdfsvysasthkflyydekkmanfqnfkprsnreemkfhefveklqd iqqrggeerlylqqtlndtvgrkivmdflgfnwnwinkqqgkrgwgqltsnllligmegn vtpahydeqqnffaqikgykrcilfppdqfeclypypvhhpcdrqsqvdfdnpdyerfpn fqnvvgyetvvgpgdvlyipmywwhhiesllnggititvnfwykgaptpeyplkahqkva imrniekmlgealgnpqevgpllntmikgryn
>1h2kS (S:) smdesglpqltsydcevnapiqgsrnllqgeellraldqvn
>1h2kS (S:) ltsydcevnapillqgeellrald