Chains and heterogens:
PDB Chain Sequences:
>1tkeA (A:) mpvitlpdgsqrhydhavspmdvaldigpglakaciagrvngelvdacdliendaqlsii takdeegleiirhscahllghaikqlwphtkmaigpvidngfyydvdldrtltqedveal ekrmhelaeknydvikkkvswhearetfanrgesykvsildeniahddkpglyfheeyvd mcrgphvpnmrfchhfklmktagaywrgdsnnkmlqriygtawa