Chains and heterogens:
PDB Chain Sequences:
>1ef9A (A:) msyqyvnvvtinkvaviefnygrklnalskvfiddlmqalsdlnrpeirciilrapsgsk vfsaghdihelpsggrdplsyddplrqitrmiqkfpkpiismvegsvwggafemimssdl iiaaststfsmtpvnlgvpynlvgihnltrdagfhivkeliftaspitaqralavgilnh vveveeledftlqmahhisekaplaiavikeelrvlgeahtmnsdeferiqgmrravyds edyqegmnaflekrkpnfvgh