>pdb|4qwt|A B C D
MHHHHHAIYNVEVETGDREHAGTDATITIRITGAKGRTDYLKLDKGSFEAGSKEQYTVQGFDVGDIQLIELHSDGGGYWSGDPDWFVNRVIIISSTQDRVYSFPCFRWVIKDMVLFPGEATLPFNEVPAIVSEQRQKELEQRKLTYQWDYVSDDMPGNIKAKTHDDLPRDVQFTDEKSRSYQESRKAALVNLGIGSLFTMFENWDSYDDYHILYRNWILGGTPNMADRWHEDRWFGYQFLNGANPVILTRCDALPSNFPVTNEHVNASLDRGKNLDEEIKDGHIYIVDFKVLVGAKSYGGPVLEDIGYKVPDHLKHDEADIRYCAAPLALFYVNKLGHLMPIAIQINQEPGPENPIWTPHEENEHDWMMAKFWLGVAESNFHQLNTHLLRTHLTTESFALSTWRNLASAHPIFKLLQPHIYGVLAIDTIGRKELIGSGGIVDQSLSLGGGGHVTFMEKCFKEVNLQDYHLPNALKKRGVDDPSKLPGFYYRDDGLALWEAIETFIGEIIAIFYKNDDDVKRDNEIQSWIYDVHKNGWRVNPGHQDHGVPASFESREQLKEVLTSLVFTFSCQHAAVNFSQKDHYGFTPNAPAILRHPPPKKKGEATLQSILSTLPSKSQAAKAIATVYILTKFSEDERYLGNYSATAWEDKDALDAINRFQDKLEDISKKIKQRNENLEVPYIYLLPERIPNGTAI