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