>1yx2B (B:) observed residues (from ATOM records)
mlkrtplfdlykeyggktidfggwelpvqfssikkeheavrtaaglfdvshmgevevsgn
dslsflqrlmtndvsaltpgraqytamcypdggtvddlliyqkgenryllvinasnidkd
lawmkehaagdvqidnqsdqiallavqgpkaeailknltdadvsalkpfafideadisgr
kalisrtgytgedgyeiycrsddamhiwkkiidagdayglipcglgardtlrfeaniply
gqeltrditpieagigfavkhkkesdffgksvlseqkengakrklvglemiekgiprhgy
evfqngksvgkvttgtqsptlgknvglalidsetseigtvvdveirkklvkakvvktpfy
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