>4n63D (D:) observed residues (from ATOM records)
gaiagfiengweglidgwygfrhqnaqgegtaadykstqsaidqitgklnrliektnqqf
elidnefnevekqignvinwtrdsitevwsynaellvamenqhtidladsemdklyervk
rqlrenaeedgtgcfeifhkcdddcmasirnntydhskyreeamqnriq