Chains and heterogens:
PDB Chain Sequences:
>4xm6A (A:) snalsryekwekikqhyqhwsdslseegrgllkklqipiepkkddiihslsqeekellkr iqidssdflsteekeflkklqidirdslseeekellnriqvdssnplsekekeflkklkl diqpydinqrlqdtgglidspsinldvrkqykrdiqnidallhqsigstlynkiylyenm ninnltatlgadlvdstdntkinrgifnefkknfkysissnymivdinerpaldnerlkw riqlspdtragylengklilqrnigleikdvqiikqsekeyiridakvvpkskidtkiqe aqlninqewnkalglpkytklitfnvhnryasnivesaylilnewknniqsdlikkvtny lvdgngrfvftditlpniaeqythqdeiyeqvhskglyvpesrsillhgpskgvelrnds egfihefghavddyagylldknqsdlvtnskkfidifkeegsnltsygrtneaeffaeaf rlmhstdhaerlkvqknapktfqfindqikfiinslvpr
>4xm6A (A:) sryekwekikqhyqhwsdslseegrgllkklqipiepkkddiihslsqeekellkriqid sslsteekeflkklqidlsekekeflkklkldiqpydinqrlqdtgglidspsinldvrk qykrdiqnidallhqsigstlynkiylyenmninnltatlgadlvdstdntkinrgifne fkknfkysissnymivdinerpaldnerlkwriqlspdtragylengklilqrnigleik dvqiikqsekeyiridakvvpkskidtkiqeaqlninqewnkalglpkytklitfnvhnr yasnivesaylilnewknniqsdlikkvtnylvdgngrfvftditlpniaeqythqdeiy eqvhskglyvpesrsillhgpskgvelrndsegfihefghavddyagylldknqsdlvtn skkfidifkeegsnltsygrtneaeffaeafrlmhstdhaerlkvqknapktfqfindqi kfiins