Chains and heterogens:
PDB Chain Sequences:
>1r6xA (A:) paphggilqdliardalkknellseaqssdilvwnltprqlcdielilnggfspltgfln endyssvvtdsrladgtlwtipitldvdeafanqikpdtrialfqddeipiailtvqdvy kpnktieaekvfrgdpehpaisylfnvagdyyvggsleaiqlpqhydypglrktpaqlrl efqsrqwdrvvafqtrnpmhrahreltvraareanakvlihpvvgltkpgdidhhtrvrv yqeiikrypngiaflsllplamrmsgdreavwhaiirknygashfivgrdhagpgknskg vdfygpydaqelvesykheldievvpfrmvtylpdedryapidqidttktrtlnisgtel rrrlrvggeipewfsypevvkilresnpprpkgss
>1r6xA (A:) paphggilqdliardalkknellseaqssdilvwnltprqlcdielilnggfspltgfln endyssvvtdsrladgtlwtipitldvdeafanqikpdtrialfqddeipiailtvqdvy kpnktieaekvfrgdpehpaisylfnvagdyyvggsleaiqlpqhydypglrktpaqlrl efqsrqwdrvvafqtrnpmhrahreltvraareanakvlihpvvgltkpgdidhhtrvrv yqeiikrypngiaflsllplamrmsgdreavwhaiirknygashfivgrdhagpgknskg vdfygpydaqelvesykheldievvpfrmvtylpdedryapidqidttktrtlnisgtel rrrlrvggeipewfsypevvkilres