Chains and heterogens:
PDB Chain Sequences:
>1kx4A (A:) artkqtarkstggkaprkqlatkaarksapatggvkkphryrpgtvalreirryqkstel lirklpfqrlvreiaqdfktdlrfqssavmalqeaseaylvalfedtnlcaihakrvtim pkdiqlarrirgera
>1kx4A (A:) phryrpgtvalreirryqkstellirklpfqrlvreiaqdfktdlrfqssavmalqease aylvalfedtnlcaihakrvtimpkdiqlarrirgera
>1kx4B (B:) sgrgkggkglgkggakrhrkvlrdniqgitkpairrlarrggvkrisgliyeetrgvlkv flenvirdavtytehakrktvtamdvvyalkrqgrtlygfgg
>1kx4B (B:) kvlrdniqgitkpairrlarrggvkrisgliyeetrgvlkvflenvirdavtytehakrk tvtamdvvyalkrqgrtlygfgg
>1kx4C (C:) sgrgkqggktrakaktrssraglqfpvgrvhrllrkgnyaervgagapvylaavleylta eilelagnaardnkktriiprhlqlavrndeelnkllgrvtiaqggvlpniqsvllpkkt essksksk
>1kx4C (C:) trssraglqfpvgrvhrllrkgnyaervgagapvylaavleyltaeilelagnaardnkk triiprhlqlavrndeelnkllgrvtiaqggvlpniqsvllpk
>1kx4D (D:) pepaksapapkkgskkavtktqkkdgkkrrktrkesyaiyvykvlkqvhpdtgisskams imnsfvndvferiageasrlahynkrstitsreiqtavrlllpgelakhavsegtkavtk ytsak
>1kx4D (D:) kkrrktrkesyaiyvykvlkqvhpdtgisskamsimnsfvndvferiageasrlahynkr stitsreiqtavrlllpgelakhavsegtkavtkytsak
>1kx4E (E:) artkqtarkstggkaprkqlatkaarksapatggvkkphryrpgtvalreirryqkstel lirklpfqrlvreiaqdfktdlrfqssavmalqeaseaylvalfedtnlcaihakrvtim pkdiqlarrirgera
>1kx4E (E:) hryrpgtvalreirryqkstellirklpfqrlvreiaqdfktdlrfqssavmalqeasea ylvalfedtnlcaihakrvtimpkdiqlarrirgera
>1kx4F (F:) sgrgkggkglgkggakrhrkvlrdniqgitkpairrlarrggvkrisgliyeetrgvlkv flenvirdavtytehakrktvtamdvvyalkrqgrtlygfgg
>1kx4F (F:) niqgitkpairrlarrggvkrisgliyeetrgvlkvflenvirdavtytehakrktvtam dvvyalkrqgrtlygfgg
>1kx4G (G:) sgrgkqggktrakaktrssraglqfpvgrvhrllrkgnyaervgagapvylaavleylta eilelagnaardnkktriiprhlqlavrndeelnkllgrvtiaqggvlpniqsvllpkkt essksksk
>1kx4G (G:) aktrssraglqfpvgrvhrllrkgnyaervgagapvylaavleyltaeilelagnaardn kktriiprhlqlavrndeelnkllgrvtiaqggvlpniqsvllpk
>1kx4H (H:) pepaksapapkkgskkavtktqkkdgkkrrktrkesyaiyvykvlkqvhpdtgisskams imnsfvndvferiageasrlahynkrstitsreiqtavrlllpgelakhavsegtkavtk ytsak
>1kx4H (H:) trkesyaiyvykvlkqvhpdtgisskamsimnsfvndvferiageasrlahynkrstits reiqtavrlllpgelakhavsegtkavtkytsak