>1u3dA (A:) observed residues (from ATOM records)
csivwfrrdlrvednpalaaavragpvialfvwapeeeghyhpgrvsrwwlknslaqlds
slrslgtclitkrstdsvaslldvvkstgasqiffnhlydplslvrdhrakdvltaqgia
vrsfnadllyepwevtdelgrpfsmfaafwerclsmpydpespllppkkiisgdvskcva
dplvfeddsekgsnallarawspgwsngdkalttfingplleysknrrkadsattsflsp
hlhfgevsvrkvfhlvrikqvawanegneageesvnlflksiglreysryisfnhpyshe
rpllghlkffpwavdenyfkawrqgrtgyplvdagmrelwatgwlhdrirvvvssffvkv
lqlpwrwgmkyfwdtlldadlesdalgwqyitgtlpdsrefdridnpqfegykfdpngey
vrrwlpelsrlptdwihhpwnapesvlqaagielgsnyplpivgldeakarlhealsqmw
qleaa