>1w63M (M:) observed residues (from ATOM records)
sasavyvldlkgkvlicrnyrgdvdmsevehfmpilmekeeegmlspilahggvrfmwik
hnnlylvatskknacvslvfsflykvvqvfseyfkeleeesirdnfviiyelldelmdfg
ypqttdskilqefitqeghkletgvswrsegikyrknevfldvieavnllvsangnvlrs
eivgsikmrvflsgmpelrlglndkveledvkfhqcvrlsrfendrtisfippdgefelm
syrlnthvkpliwiesviekhshsrieymvkaksqfkrrstannveihipvpndadspkf
kttvgsvkwvpenseivwsvksfpggkeylmrahfglkppisvkfeipyfttsgiqvryl
kiieksgyqaipwvryitqngdyqlrtq