Chains and heterogens:
PDB Chain Sequences:
>4n2kA (A:) mghhhhhhhhhhssghiegrhmlrertvrlqygsrveavyvlgtylwtdvysaapagaqt fslkhsehvwvevvrdgeaeevatngkqrwllspsttlrvtmsqasteassdkvtvnyyd eegsipidqaglfltaieisldvdadrdgvveknnpkkaswtwgpegqgaillvncdret pwlpkedcrdekvyskedlkdmsqmilrtkgpdrlpagyeivlyismsdsdkvgvfyven pffgqryihilgrrklyhvvkytggsaellffveglcfpdegfsglvsihvslleymaqd ipltpiftdtvifriapwimtpnilppvsvfvccmkdnylflkevknlvektncelkvcf qylnrgdrwiadeiefgyieaphkgfpvvldsprdgnlkdfpvkellgpdfgyvtreplf esvtsldsfgnlevsppvtvngktyplgriligssfplsggrrmtkvvrdflkaqqvqap velysdwltvghvdefmsfvpipgtkkflllmastsacyklfrekqkdghgeaimfkglg gmsskritinkilsneslvqenlyfqrcldwnrdilkkelglteqdiidlpalfkmdedh raraffpnmvnmivldkdlgipkpfgpqveeecclemhvrglleplglectfiddisayh kflgevhcgtnvrrkpftfkwwhmvpsrrs
>4n2kA (A:) rertvrlqygsrveavyvlgtylwtdvysaapagaqtfslkhsehvwvevvrdgeaeeva tngkqrwllspsttlrvtmsqasteassdkvtvnyydeegsipidqaglfltaieisldv dadrdgvveknnpkkaswtwgpegqgaillvncdvyskedlkdmsqmilrtkgpdrlpag yeivlyismsdsdkvgvfyvenpffgqryihilgrrklyhvvkytggsaellffveglcf pdegfsglvsihvslleymaqdipltpiftdtvifriapwimtpnilppvsvfvccmkdn ylflkevknlvektncelkvcfqylnrgdrwiadeiefgyieaphkgfpvvldsprdgel lgpdfgyvtrvtsldsfgnlevsppvtvngktyplgriligssfplsggrrmtkvvrdfl kaqqvqapvelysdwltvghvdefmsfvpipgtkkflllmastsacyklfrekqkdghge aimfkglggmsskritinkilsneslvqenlyfqrcldwnrdilkkelglteqdiidlpa lfkmdedhraraffpnmvnmivldkdlgipkpfgpqveeecclemhvrglleplglectf iddisayhkflgevhcgtnvrrkpftfkwwhmvpsrr