Chains and heterogens:
PDB Chain Sequences:
>2tdm_ (-) mleqpyldlakkvldeghfkpdrthtgtysifghqmrfdlskgfpllttkkvpfglikse llwflhgdtnirfllqhrnhiwdewafekwvksdeyhgpdmtdfghrsqkdpefaavyhe emakfddrvlhddafaakygdlglvygsqwrawhtskgdtidqlgdvieqikthpysrrl ivsawnpedvptmalppchtlyqfyvndgklslqlyqrsadiflgvpfniasyallthlv ahecglevgefihtfgdahlyvnhldqikeqlsrtprpaptlqlnpdkhdifdfdmkdik llnydpypaikapvav