Chains and heterogens:
PDB Chain Sequences:
>1b59A (A:) pkvqtdppsvpicdlypngvfpkgqeceypptqdgrtaawrttseekkaldqaseeiwnd freaaeahrqvrkyvmswikpgmtmieicekledcsrklikenglnaglafptgcslnnc aahytpnagdttvlqyddickidfgthisgriidcaftvtfnpkydtllkavkdatntgi kcagidvrlcdvgeaiqevmesyeveidgktyqvkpirnlnghsigqyrihagktvpivk ggeatrmeegevyaietfgstgkgvvhddmecshymknfdvghvpirlprtkhllnvine nfgtlafcrrwldrlgeskylmalknlcdlgivdpypplcdikgsytaqfehtillrptc kevvsrgddy
>1b59A (A:) kvqtdppsvpicdlypngvfpkgqeceypeekkaldqaseeiwndfreaaeahrqvrkyv mswikpgmtmieicekledcsrklikenglnaglafptgcslnncaahytpnagdttvlq yddickidfgthisgriidcaftvtfnpkydtllkavkdatntgikcagidvrlcdvgea iqevmesyeveidgktyqvkpirnlnghsigqyrihagktvpivkggeatrmeegevyai etfgstgkgvvhddmecshymknfdvghvpirlprtkhllnvinenfgtlafcrrwldrl geskylmalknlcdlgivdpypplcdikgsytaqfehtillrptckevvsrgddy