Chains and heterogens:
PDB Chain Sequences:
>1a24_ (-) aqyedgkqyttlekpvagapqvleffsffcphcyqfeevlhisdnvkkklpegvkmtkyh vnfmggdlgkdltqawavamalgvedkvtvplfegvqktqtirsasdirdvfinagikge eydaawnsfvvkslvaqqekaaadvqlrgvpamfvngkyqlnpqgmdtsnmdvfvqqyad tvkylsekk