Chains and heterogens:
PDB Chain Sequences:
>1yysA (A:) menfpteyflnttvrlleyiryrdsnytreerienlhyaynkaahhfaqprqqqllkvdp krlqaslqtivgmvvyswakvskecmadlsihytytlvlddskddpyptmvnyfddlqag reqahpwwalvnehfpnvlrhfgpfcslnlirstldffegcwieqynfggfpgshdypqf lrrmnglghcvgaslwpkeqfnerslfleitsaiaqmenwmvwvndlmsfykefdderdq islvknyvvsdeislhealekltqdtlhsskqmvavfsdkdpqvmdtiecfmhgyvtwhl cdrrfrlseiyekvkeektedaqkfckfyeqaanvgavspsewayppvaqlanvrskdvk evqkpflssielve
>1yysA (A:) enfpteyflnttvrlleyiryrdsnytreerienlhyaynkaahhfaqprqqqllkvdpk rlqaslqtivgmvvyswakvskecmadlsihytytlvlddskddpyptmvnyfddlqagr eqahpwwalvnehfpnvlrhfgpfcslnlirstldffegcwieqynfggfpgshdypqfl rrmnglghcvgaslwpkeqfnerslfleitsaiaqmenwmvwvndlmsfykefdderdqi slvknyvvsdeislhealekltqdtlhsskqmvavfsdkdpqvmdtiecfmhgyvtwhlc drrfrlseiyekvkeektedaqkfckfyeqaanvgavspsewayppvaqlanv
>1yysB (B:) menfpteyflnttvrlleyiryrdsnytreerienlhyaynkaahhfaqprqqqllkvdp krlqaslqtivgmvvyswakvskecmadlsihytytlvlddskddpyptmvnyfddlqag reqahpwwalvnehfpnvlrhfgpfcslnlirstldffegcwieqynfggfpgshdypqf lrrmnglghcvgaslwpkeqfnerslfleitsaiaqmenwmvwvndlmsfykefdderdq islvknyvvsdeislhealekltqdtlhsskqmvavfsdkdpqvmdtiecfmhgyvtwhl cdrrfrlseiyekvkeektedaqkfckfyeqaanvgavspsewayppvaqlanvrskdvk evqkpflssielve
>1yysB (B:) fpteyflnttvrlleyiryrdsnytreerienlhyaynkaahhfaqprqqqllkvdpkrl qaslqtivgmvvyswakvskecmadlsihytytlvlddskddpyptmvnyfddlqagreq ahpwwalvnehfpnvlrhfgpfcslnlirstldffegcwieqynfggfpgshdypqflrr mnglghcvgaslwpkeqfnerslfleitsaiaqmenwmvwvndlmsfykefdderdqisl vknyvvsdeislhealekltqdtlhsskqmvavfsdkdpqvmdtiecfmhgyvtwhlcdr rfrlseiyekvkeektedaqkfckfyeqaanvgavspsewayppvaqlanv