>6y4xA (A:) observed residues (from ATOM records)
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siihakrtyrelrllkhmkhenviglldvftparsleefndvylvthlmgadlnnivkcq
kltddhvqfliyqilrglkyihsadiihrdlkpsnlavnedcelkildfglayvatrwyr
apeimlnwmhynqtvdiwsvgcimaelltgrtlfpgtdhidqlklilrlvgtpgaellkk
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