Chains and heterogens:
PDB Chain Sequences:
>1ychA (A:) sqpvaitdgiywvgavdwniryfhgpafsthrgttynaylivddktalvdtvyepfkeel iaklkqikdpvkldylvvnhtesdhagafpaimelcpdahvlctqrafdslkahyshidf nytivktgtsvslgkrsltfieapmlhwpdsmftyvpeealllpndafgqhiatsvrfdd qvdaglimdeaakyyanilmpfsnlitkkldeiqkinlaiktiapshgiiwrkdpgriie ayarwaegqgkakaviaydtmwlstekmahalmdglvaggcevklfklsvsdrndvikei ldaravlvgsptinndilpvvspllddlvglrpknkvglafgaygwgggaqkileerlka akieliaepgptvqwvprgedlqrcyelgrkiaariad
>1ychB (B:) sqpvaitdgiywvgavdwniryfhgpafsthrgttynaylivddktalvdtvyepfkeel iaklkqikdpvkldylvvnhtesdhagafpaimelcpdahvlctqrafdslkahyshidf nytivktgtsvslgkrsltfieapmlhwpdsmftyvpeealllpndafgqhiatsvrfdd qvdaglimdeaakyyanilmpfsnlitkkldeiqkinlaiktiapshgiiwrkdpgriie ayarwaegqgkakaviaydtmwlstekmahalmdglvaggcevklfklsvsdrndvikei ldaravlvgsptinndilpvvspllddlvglrpknkvglafgaygwgggaqkileerlka akieliaepgptvqwvprgedlqrcyelgrkiaariad
>1ychC (C:) sqpvaitdgiywvgavdwniryfhgpafsthrgttynaylivddktalvdtvyepfkeel iaklkqikdpvkldylvvnhtesdhagafpaimelcpdahvlctqrafdslkahyshidf nytivktgtsvslgkrsltfieapmlhwpdsmftyvpeealllpndafgqhiatsvrfdd qvdaglimdeaakyyanilmpfsnlitkkldeiqkinlaiktiapshgiiwrkdpgriie ayarwaegqgkakaviaydtmwlstekmahalmdglvaggcevklfklsvsdrndvikei ldaravlvgsptinndilpvvspllddlvglrpknkvglafgaygwgggaqkileerlka akieliaepgptvqwvprgedlqrcyelgrkiaariad
>1ychD (D:) sqpvaitdgiywvgavdwniryfhgpafsthrgttynaylivddktalvdtvyepfkeel iaklkqikdpvkldylvvnhtesdhagafpaimelcpdahvlctqrafdslkahyshidf nytivktgtsvslgkrsltfieapmlhwpdsmftyvpeealllpndafgqhiatsvrfdd qvdaglimdeaakyyanilmpfsnlitkkldeiqkinlaiktiapshgiiwrkdpgriie ayarwaegqgkakaviaydtmwlstekmahalmdglvaggcevklfklsvsdrndvikei ldaravlvgsptinndilpvvspllddlvglrpknkvglafgaygwgggaqkileerlka akieliaepgptvqwvprgedlqrcyelgrkiaariad