Chains and heterogens:
PDB Chain Sequences:
>4rd4A (A:) mawpkvqpevnigvvghvdhgkttlvqaitgiwtskhseelkrgmtiklgyaetnigvce sckkpeayvtepsckscgsddepkflrrisfidapghevlmatmlsgaalmdgailvvaa nepfpqpqtrehfvalgiigvknliivqnkvdvvskeealsqyrqikqftkgtwaenvpi ipvsalhkinidsliegieeyiktpyrdlsqkpvmlvirsfdvnkpgtqfnelkggvigg siiqglfkvdqeikvlpglrvekqgkvsyepiftkissirfgdeefkeakpgglvaigty ldpsltkadnllgsiitladaevpvlwnirikynllervvgakemlkvdpiraketlmls vgssttlgivtsvkkdeievelrrpvavwsnnirtvisrqiagrwrmigwglvei
>4rd4A (A:) awpkvqpevnigvvghvdhgkttlvqaitgiwtskhseelkrgmtiklgyaetnigvces ckkpeayvtepsckscgsddepkflrrisfidapghevlmatmlsgaalmdgailvvaan epfpqpqtrehfvalgiigvknliivqnkvdvvskeealsqyrqikqftkgtwaenvpii pvsalhkinidsliegieeyiktpyrdlsqkpvmlvirsfdvnkpgtqfnelkggviggs iiqglfkvdqeikvlpglrvekqgkvsyepiftkissirfgdeefkeakpgglvaigtyl dpsltkadnllgsiitladaevpvlwnirikynllervvgakemlkvdpiraketlmlsv gssttlgivtsvkkdeievelrrpvavwsnnirtvisrqiagrwrmigwglvei