Chains and heterogens:
PDB Chain Sequences:
>4n4uA (A:) mhhhhhhssgvdlgtenlyfqsmatwmaytfgpsenlanvqgmkrvmediekntggevkf rlrlagslpiqatditqavgngtvrfaddgfylgnvriagilrlpmllrsqedfdkayai mkpyverdfgkqgvvvlghfsfphqvifsarklesladikgqklrvsspeqaafvqragg ipvtlggaevpsalsagtidgaltasagggkiwgdmlkynlrlpvnyfdgfylvnkkafe alspemqakmresvarqapgttaqiakeegevtdalrqkgmvivpstpameqaatdlvsg ywedwareqgpeavqalaevrkalgr
>4n4uA (A:) matwmaytfgpsenlanvqgmkrvmediekntggevkfrlrlagslpiqatditqavgng tvrfaddgfylgnvriagilrlpmllrsqedfdkayaimkpyverdfgkqgvvvlghfsf phqvifsarklesladikgqklrvsspeqaafvqraggipvtlggaevpsalsagtidga ltasagggkiwgdmlkynlrlpvnyfdgfylvnkkafealspemqakmresvarqapgtt aqiakeegevtdalrqkgmvivpstpameqaatdlvsgywedwareqgpeavqalaevrk algr
>4n4uB (B:) mhhhhhhssgvdlgtenlyfqsmatwmaytfgpsenlanvqgmkrvmediekntggevkf rlrlagslpiqatditqavgngtvrfaddgfylgnvriagilrlpmllrsqedfdkayai mkpyverdfgkqgvvvlghfsfphqvifsarklesladikgqklrvsspeqaafvqragg ipvtlggaevpsalsagtidgaltasagggkiwgdmlkynlrlpvnyfdgfylvnkkafe alspemqakmresvarqapgttaqiakeegevtdalrqkgmvivpstpameqaatdlvsg ywedwareqgpeavqalaevrkalgr
>4n4uB (B:) twmaytfgpsenlanvqgmkrvmediekntggevkfrlrlagslpiqatditqavgngtv rfaddgfylgnvriagilrlpmllrsqedfdkayaimkpyverdfgkqgvvvlghfsfph qvifsarklesladikgqklrvsspeqaafvqraggipvtlggaevpsalsagtidgalt asagggkiwgdmlkynlrlpvnyfdgfylvnkkafealspemqakmresvarqapgttaq iakeegevtdalrqkgmvivpstpameqaatdlvsgywedwareqgpeavqalaevrkal gr