>3u4dA (A:) observed residues (from ATOM records)
skrtafvmgasqgigkaialkladqhfslvinsrnldniesvkedilakhpeasvivlag
dmsdqhtragifqkiesqcgrldvlinnipggapdtfdncniedmtatftqktvayidai
krasslmkqnefgriinivgnlwkepganmftnsmmnaalinasknisiqlaphnitvnc
lnpgfiatdryaeeqiasgipmkrvgsaeetaalaaflaseeasyitgqqisadggs