Chains and heterogens:
PDB Chain Sequences:
>1x7zA (A:) sslddkpqfpgasaefidklefiqpnvisgipiyrvmdrqgqiinpsedphlpkekvlkl yksmtllntmdrilyesqrqgrisfymtnygeegthvgsaaaldntdlvfgqyreagvlm yrdyplelfmaqcygnisdlgkgrqmpvhygckerhfvtissplatqipqavgaayaakr ananrvvicyfgegaasegdahagfnfaatlecpiiffcrnngyaistptseqyrgdgia argpgygimsirvdgndvfavynatkearrravaenqpflieamtyrighhdtsddssay rsvdevnywdkqdhpisrlrhyllsqgwwdeeqekawrkqsrrkvmeafeqaerkpkpnp nllfsdvyqempaqlrkqqeslarhlqtygehypldhfdk
>1x7zA (A:) kpqfpgasaefidklefiqpnvisgipiyrvmdrqgqiinpsedphlpkekvlklyksmt llntmdrilyesqrqgrisfymtnygeegthvgsaaaldntdlvfgqyreagvlmyrdyp lelfmaqcygnisdlgkgrqmpvhygckerhfvtissplatqipqavgaayaakrananr vvicyfgegaasegdahagfnfaatlecpiiffcrnngyaistptseqyrgdgiaargpg ygimsirvdgndvfavynatkearrravaenqpflieamtyrighhdtsddssayrvnyw dkqdhpisrlrhyllsqgwwdeeqekawrkqsrrkvmeafeqaerkpkpnpnllfsdvyq empaqlrkqqeslarhlqtygehypldhfdk
>1x7zB (B:) vahftfqpdpepreygqtqkmnlfqsvtsaldnslakdptavifgedvafggvfrctvgl rdkygkdrvfntplceqgivgfgigiavtgataiaeiqfadyifpafdqivneaakyryr sgdlfncgsltirspwgcvghgalyhsqspeaffahcpgikvviprspfqakglllscie dknpciffepkilyraaaeevpiepyniplsqaeviqegsdvtlvawgtqvhvirevasm akeklgvscevidlrtiipwdvdticksviktgrllisheapltggfaseisstvqeecf lnleapisrvcgydtpfphifepfyipdkwkcydalrkminy
>1x7zB (B:) eygqtqkmnlfqsvtsaldnslakdptavifgedvafggvfrctvglrdkygkdrvfntp lceqgivgfgigiavtgataiaeiqfadyifpafdqivneaakyryrsgdlfncgsltir spwgcvghgalyhsqspeaffahcpgikvviprspfqakglllsciedknpciffepkil yraaaeevpiepyniplsqaeviqegsdvtlvawgtqvhvirevasmakeklgvscevid lrtiipwdvdticksviktgrllisheapltggfaseisstvqeecflnleapisrvcgy dtpfphifepfyipdkwkcydalrkminy