>1us7B (B:) observed residues (from ATOM records) hktfvekyekqikhfgmlrrwddsqkylsdnvhlvceetanylviwcidleveekcalme qvahqtivmqfilelakslkvdpracfrqfftkiktadrqymegfndeleafkervrgra klriekamkeyeeeerkkrlgpggldpvevyeslpeelqkcmlqdaiskmdptdakyhmq rcidsglwvpnska