Chains and heterogens:
PDB Chain Sequences:
>2rkeA (A:) gsmppqlhngldfsakviqgsldslpqevrkfvegnaqlcqpeyihicdgseeeygrlla hmqeegvirklkkydncwlaltdprdvariesktviitqeqrdtvpipksgqsqlgrwms eedfekafnarfpgcmkgrtmyvipfsmgplgsplakigieltdspyvvasmrimtrmgt svlealgdgefikclhsvgcplplkkplvnnwacnpeltliahlpdrreiisfgsgyggn sllgkkcfalriasrlakeegwlaehmlilgitnpegkkkylaaafpsacgktnlammnp tlpgwkvecvgddiawmkfdaqgnlrainpengffgvapgtsvktnpnaiktiqkntift nvaetsdggvywegideplapgvtitswknkewrpqdeepcahpnsrfctpasqcpiidp awespegvpiegiifggrrpagvplvyealswqhgvfvgaamrseataaaehkgkvimhd pfamrpffgynfgkylahwlsmahrpaaklpkifhvnwfrkdkngkflwpgfgensrvle wmfgriegedsakltpigyvpkedalnlkglgdvnveelfgiskefwekeveeidkyled qvnadlpyeierelralkqrisqm
>2rkeA (A:) qlhngldfsakviqgsldslpqevrkfvegnaqlcqpeyihicdgseeeygrllahmqee gvirklkkydncwlaltdprdvariesktviitqeqrdtvpipksgqsqlgrwmseedfe kafnarfpgcmkgrtmyvipfsmgplgsplakigieltdspyvvasmrimtrmgtsvlea lgdgefikclhsvgcplplkkplvnnwacnpeltliahlpdrreiisfgsgyggnsllgk kcfalriasrlakeegwlaehmlilgitnpegkkkylaaafpsacgktnlammnptlpgw kvecvgddiawmkfdaqgnlrainpengffgvapgtsvktnpnaiktiqkntiftnvaet sdggvywegideplapgvtitswknkewrpqdeepcahpnsrfctpasqcpiidpawesp egvpiegiifggrrpagvplvyealswqhgvfvgaamrseagkvimhdpfamrpffgynf gkylahwlsmahrpaaklpkifhvnwfrkdkngkflwpgfgensrvlewmfgriegedsa kltpigyvpkedalnlkglgdvnveelfgiskefwekeveeidkyledqvnadlpyeier elralkqrisqm