Chains and heterogens:
PDB Chain Sequences:
>1g4wR (R:) ndvgaeskqplldialkglkrtlpqleqmdgnslrenfqemasgngplrslmtnlqnlnk ipeakqlndyvttltniqvgvarfsqwgtcggeverwvdkastheltqavkkihviakel knvtaelekieagapmpqtmsgptlglarfavssipinqqtqvklsdgmpvpvntltfdg kpvalagsypkntpdaleahmkmllekecsclvvltsedqmqakqlppyfrgsytfgevh tnsqkvssasqgeaidqynmqlscgekrytipvlhvknwpdhqplpstdqleyladrvkn snqngapgrsssdkhlpmihclggvgrtgtmaaalvlkdnphsnleqvradfrdsrnnrm ledasqfvqlkamqaqllmttas
>1g4wR (R:) lldialkglkrtlpqleqmdgnslrplrslmtnlqnlnkqlndyvttltniqvgvarfsq weverwvdastheltqavkkihviakelknvtaelekipqtmsgptlglarfavssipin qqtqvklsdgmpvpvntltfdgkpvalagsypkntpdaleahmkmllekecsclvvltse dqmqakqlppyfrgsytfgevhtnsqkvssasqgeaidqynmqlscgekrytipvlhvkn wpdhqplpstdqleyladrvknsnqngapgrsssdkhlpmihclggvgrtgtmaaalvlk dnphsnleqvradfrdsrnnrmledasqfvqlkamqaqllm