Chains and heterogens:
PDB Chain Sequences:
>1a8bA (A:) alrgtvtdfsgfdgradaevlrkamkglgtdedsilnlltarsnaqrqqiaeefktlfgr dlvndmkseltgkfeklivalmkpsrlydayelkhalkgagtdekvlteiiasrtpeelr aikqayeeeygsnleddvvgdtsgyyqrmlvvllqanrdpdtaiddaqveldaqalfqag elkwgtdeekfitilgtrsvshlrrvfdkymtisgfqieetidretsgnlenlllavvks irsipaylaetlyyamkgagtddhtlirvivsrseidlfnirkefrknfatslysmikgd tsgdykkallllcggedd