Chains and heterogens:
PDB Chain Sequences:
>1nbyA (A:) divltqspatlsvtpgdsvslscrasqsisnnlhwyqqkshesprllikyasqsisgips rfsgsgsgtdftlsinsvetedfgmyfcqqsnswpytfgggtkleikradaaptvsifpp sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstlt ltkdeyerhnsytceathktstspivksfnrnec
>1nbyB (B:) evqlqesgpslvkpsqtlsltcsvtgdsvtsdywswirkfpgnkleymgyisysgstyyh pslksrisitrdtsknqyylqlnsvttedtatyycaswggdvwgagttvtvssakttaps vyplapvcgdttgssvtlgclvkgyfpepvtltwnsgslssgvhtfpavlqsdlytlsss vtvtsstwpsqsitcnvahpasstkvdkki
>1nbyC (C:) kvfgrcelaaamkrhgldnyrgyslgnwvcaakfesnfntqatnrntdgstdygilqins rwwcndgrtpgsrnlcnipcsallssditasvncaakivsdgngmnawvawrnrckgtdv qawirgcrl