>1tx3D (D:) observed residues (from ATOM records)
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earyklfnsptllfllsrgkaatenwsienlfeekqndtadillvkdqfyelldvktrni
sksaqapniisayklaqtcakmidnkefdlfdinylevdwelngedlvcvstsfaelfks
epselyinwaaamqiqfhvrdldqgfngtreewaksylkhfvtqaeqraismidkfvkpf
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