Chains and heterogens:
PDB Chain Sequences:
>1kejA (A:) kkisqyacqrrttlnnynqlftdaldilaendelrenegsclafmrassvlkslpfpits mkdtegipclgdkvksiiegiiedgesseakavlnderyksfklftsvfgvglktaekwf rmgfrtlskiqsdkslrftqmqkagflyyedlvscvnrpeaeavsmlvkeavvtflpdal vtmtggfrrgkmtghdvdflitspeatedeeqqllhkvtdfwkqqglllycdilestfek fkqpsrkvdaldhfqkcflilkldhgrvhseksgqqegkgwkairvdlvmcpydrrafal lgwtgsrqferdlrryatherkmmldnhalydrtkrvfleaeseeeifahlgldyiepwe rna
>1kejA (A:) kkisqyacqrrttlnnynqlftdaldilaendelrenegsclafmrassvlkslpfpits mkdtegipclgdkvksiiegiiedgesseakavlnderyksfklftsvfgvglktaekwf rmgfrtlskiqsdkslrftqmqkagflyyedlvscvnrpeaeavsmlvkeavvtflpdal vtmtggfrrgkmtghdvdflitspeatedeeqqllhkvtdfwkqqglllycdilestfeq psrkvdaldhfqkcflilkldhgrvhseksegkgwkairvdlvmcpydrrafallgwtgs rqferdlrryatherkmmldnhalydrtkrvfleaeseeeifahlgldyiepwerna