Chains and heterogens:
PDB Chain Sequences:
>4rczA (A:) mawpkvqpevnigvvghvdhgkttlvqaitgiwtskhseelkrgmtiklgyaetnigvce sckkpeayvtepsckscgsddepkflrrisfidapghevlmatmlsgaalmdgailvvaa nepfpqpqtrehfvalgiigvknliivqnkvdvvskeealsqyrqikqftkgtwaenvpi ipvsalhkinidsliegieeyiktpyrdlsqkpvmlvirsfdvnkpgtqfnelkggvigg siiqglfkvdqeikvlpglrvekqgkvsyepiftkissirfgdeefkeakpgglvaigty ldpsltkadnllgsiitladaevpvlwnirikynllervvgakemlkvdpiraketlmls vgssttlgivtsvkkdeievelrrpvavwsnnirtvisrqiagrwrmigwglvei
>4rczA (A:) awpkvqpevnigvvghvdhgkttlvqaitgiwtskhseelkrgmtiklgyaetnigvces ckkpeayvtepsckscgsddepkflrrisfidapghevlmatmlsgaalmdgailvvaan epfpqpqtrehfvalgiigvknliivqnkvdvvskeealsqyrqikqftkgtwaenvpii pvsalhkinidsliegieeyiktpyrdlsqkpvmlvirsfdvnkpgtqfnelkggviggs iiqglfkvdqeikvlpglrvekqgkvsyepiftkissirfgdeefkeakpgglvaigtyl dpsltkadnllgsiitladaevpvlwnirikynllervvgakemlkvdpiraketlmlsv gssttlgivtsvkkdeievelrrpvavwsnnirtvisrqiagrwrmigwglvei