>3u49A (A:) observed residues (from ATOM records)
skrtafvmgasqgigkaialkladqhfslvinsrnldniesvkedilakhpeasvivlag
dmsdqhtragifqkiesqcgrldvlinnipggapdtfdncniedmtatftqktvayidai
krasslmkqnefgriinivgnlwkepganmftnsmmnaalinasknisiqlaphnitvnc
lnpgfiatdryhqfvenvmkknsisgipmkrvgsaeetaalaaflaseeasyitgqqisa
dggsmksil