Chains and heterogens:
PDB Chain Sequences:
>1o23A (A:) teltkckvshaikdidgyqgisllewacvlfhtsgydtqavvndngsteyglfqisdrfw ckssefpesenicgiscdkllddeldddiacakkilaikgidywkaykpmcsekleqwrc ekp
>1o23B (B:) ltacpeespllvgpmliefnipvdlklveqqnpkvklggrytpmdcisphkvaiiipfrn rqehlkywlyylhpilqrqqldygiyvinqagesmfnrakllnvgfkealkdydyncfvf sdvdlipmndhntyrcfsqprhisvamdkfgfslpyvqyfggvsalskqqflsingfpnn ywgwggedddiynrlafrgmsvsrpnavigkcrmirhsrdkknepnpqrfdriahtketm lsdglnsltymvlevqryplytkitvdigtps
>1o23C (C:) teltkckvshaikdidgyqgisllewacvlfhtsgydtqavvndngsteyglfqisdrfw ckssefpesenicgiscdkllddeldddiacakkilaikgidywkaykpmcsekleqwrc ekp
>1o23D (D:) ltacpeespllvgpmliefnipvdlklveqqnpkvklggrytpmdcisphkvaiiipfrn rqehlkywlyylhpilqrqqldygiyvinqagesmfnrakllnvgfkealkdydyncfvf sdvdlipmndhntyrcfsqprhisvamdkfgfslpyvqyfggvsalskqqflsingfpnn ywgwggedddiynrlafrgmsvsrpnavigkcrmirhsrdkknepnpqrfdriahtketm lsdglnsltymvlevqryplytkitvdigtps