Chains and heterogens:
PDB Chain Sequences:
>1h50A (A:) saeklftplkvgavtapnrvfmapltrlrsiepgdiptplmgeyyrqrasagliiseatq isaqakgyagapglhspeqiaawkkitagvhaedgriavqlwhtgrishssiqpggqapv sasalnantrtslrdengnairvdtttpraleldeipgivndfrqavanareagfdlvel hsahgyllhqflspssnqrtdqyggsvenrarlvlevvdavcnewsadrigirvspigtf qnvdngpneeadalylieelakrgiaylhmsetdlaggkpyseafrqkvrerfhgviiga gaytaekaedligkglidavafgrdyianpdlvarlqkkaelnpqrpesfygggaegytd ypsl