Chains and heterogens:
PDB Chain Sequences:
>4n2iA (A:) mghhhhhhhhhhssghiegrhmlrertvrlqygsrveavyvlgtylwtdvysaapagaqt fslkhsehvwvevvrdgeaeevatngkqrwllspsttlrvtmsqasteassdkvtvnyyd eegsipidqaglfltaieisldvdadrdgvveknnpkkaswtwgpegqgaillvncdret pwlpkedcrdekvyskealkdmsqmilrtkgpdrlpagyeivlyismsdsdkvgvfyven pffgqryihilgrrklyhvvkytggsaellffveglcfpdegfsglvsihvslleymaqd ipltpiftdtvifriapwimtpnilppvsvfvccmkdnylflkevknlvektncelkvcf qylnrgdrwiqdeiefgyieaphkgfpvvldsprdgnlkdfpvkellgpdfgyvtreplf esvtsldsfgnlevsppvtvngktyplgriligssfplsggrrmtkvvrdflkaqqvqap velysdwltvghvdefmsfvpipgtkkflllmastsacyklfrekqkdghgeaimfkglg gmsskritinkilsneslvqenlyfqrcldwnrdilkkelglteqdiidlpalfkmdedh raraffpnmvnmivldkdlgipkpfgpqveeecclemhvrglleplglectfiddisayh kflgevhcgtnvrrkpftfkwwhmvpsrrs
>4n2iA (A:) lrertvrlqygsrveavyvlgtylwtdvysaapagaqtfslkhsehvwvevvrdgeaeev atngkqrwllspsttlrvtmsqasteassdkvtvnyydeegsipidqaglfltaieisld vdadrdgvveknnpkkaswtwgpegqgaillvncdretpkedcrdekvyskealkdmsqm ilrtkgpdrlpagyeivlyismsdsdkvgvfyvenpffgqryihilgrrklyhvvkytgg saellffveglcfpdegfsglvsihvslleymaqdipltpiftdtvifriapwimtpnil ppvsvfvccmkdnylflkevknlvektncelkvcflnrgdrwiqdeiefgyieaphkgfp vvldsprdgnlkdfpvkellgpdfgyvtreplfesvtsldsfgnlevsppvtvngktypl griligssfplsggrrmtkvvrdflkaqqvqapvelysdwltvghvdefmsfvpipgtkk flllmastsacyklfrekqkdghgeaimfkglggmsskritinkilsneslvqenlyfqr cldwnrdilkkelglteqdiidlpalfkmdedhraraffpnmvnmivldkdlgipkpfgp qveeecclemhvrglleplglectfiddisayhkflgevhcgtnvrrkpftfkwwhmvps rr