Chains and heterogens:
PDB Chain Sequences:
>1us7A (A:) masetfefqaeitqlmsliintvysnkeiflrelisnasdaldkirykslsdpkqletep dlfiritpkpeqkvleirdsgigmtkaelinnlgtiaksgtkafmealsagadvsmigqf gvgfyslflvadrvqvisksnddeqyiwesnaggsftvtldevnerigrgtilrlflkdd qleyleekrikevikrhsefvaypiqlvvtkeve
>1us7A (A:) asetfefqaeitqlmsliintvysnkeiflrelisnasdaldkirykslsdpkqletepd lfiritpkpeqkvleirdsgigmtkaelinnlgtiaksgtkafmealsagadvsmigqfg vgfyslflvadrvqvisksnddeqyiwesnaggsftvtldevnerigrgtilrlflkddq leyleekrikevikrhsefvaypiqlv
>1us7B (B:) mrgshhhhhhgmasmvntkpekteedseevreqkhktfvekyekqikhfgmlrrwddsqk ylsdnvhlvceetanylviwcidleveekcalmeqvahqtivmqfilelakslkvdprac frqfftkiktadrqymegfndeleafkervrgraklriekamkeyeeeerkkrlgpggld pvevyeslpeelqkcfdvkdvqmlqdaiskmdptdakyhmqrcidsglwvpnskaseake geeagpgdplleavpktgdekdvsv
>1us7B (B:) hktfvekyekqikhfgmlrrwddsqkylsdnvhlvceetanylviwcidleveekcalme qvahqtivmqfilelakslkvdpracfrqfftkiktadrqymegfndeleafkervrgra klriekamkeyeeeerkkrlgpggldpvevyeslpeelqkcmlqdaiskmdptdakyhmq rcidsglwvpnska