Chains and heterogens:
PDB Chain Sequences:
>2i3rA (A:) sdrplsvhlnlgqkgnrktscpikinqfeghfmklqadsnyllskeyeelkdvgrnqscd iallpenrgknrynnilpydatrvklsnvdddpcsdyinasyipgnnfrreyivtqgplp gtkddfwkmvweqnvhnivmvtqcvekgrvkcdhywpadqdslyygdlilqmlsesvlpe wtirefkicgeeqldahrlirhfhytvwpdhgvpettqsliqfvrtvrdyinrspgagpt vvhcsagvgrtgtfialdrilqqldskdsvdiygavhdlrlhrvhmvqtecqyvylhqcv rdvlrarklrseq
>2i3rA (A:) tscpikinqfeghfmklqadsnyllskeyeelkdvgrnqscdiallpenrgknrynnilp ydatrvklsnvdddpcsdyinasyipgnnfrreyivtqgplpgtkddfwkmvweqnvhni vmvtqcvekgrvkcdhywpadqdslyygdlilqmlsesvlpewtirefkicgahrlirhf hytvwpdhgvpettqsliqfvrtvrdyinrspgagptvvhcsagvgrtgtfialdrilqq ldskdsvdiygavhdlrlhrvhmvqtecqyvylhqcvrdvlrarkl
>2i3rB (B:) sdrplsvhlnlgqkgnrktscpikinqfeghfmklqadsnyllskeyeelkdvgrnqscd iallpenrgknrynnilpydatrvklsnvdddpcsdyinasyipgnnfrreyivtqgplp gtkddfwkmvweqnvhnivmvtqcvekgrvkcdhywpadqdslyygdlilqmlsesvlpe wtirefkicgeeqldahrlirhfhytvwpdhgvpettqsliqfvrtvrdyinrspgagpt vvhcsagvgrtgtfialdrilqqldskdsvdiygavhdlrlhrvhmvqtecqyvylhqcv rdvlrarklrseq
>2i3rB (B:) tscpikinqfeghfmklqadsnyllskeyeelkdvgrnqscdiallpenrgknrynnilp ydatrvklscsdyinasyipgnnfrreyivtqgplpgtkddfwkmvweqnvhnivmvtqc vekgrvkcdhywpadqdslyygdlilqmlsesvlpewtirefkicgrlirhfhytvwpdh gvpettqsliqfvrtvrdyinrspgagptvvhcsagvgrtgtfialdrilqqldskdsvd iygavhdlrlhrvhmvqtecqyvylhqcvrdvlrarkl