>3tw9A (A:) observed residues (from ATOM records)
nlkitnvktiltapggidlavvkietnepglyglgcatftqrifavksaideymapflvg
kdptriediwqsgvvsgywrngpimnnalsgvdmalwdikgklagmpvydllggkcrdgi
plychtdggdevevednirarmeegyqyvrcqmgmiqpkrsprsktpgiyfdpdayaksv
prlfdhlrnklgfgiefihdvhervtpvtainlaktleqyqlfyledpvapenidwlkml
rqqsstpismgelfvnvnewkplidnrlidyirchvstiggitparklavyselngvrta
whgpgdispvgvcanmhldlsspnfgiqeytpmndalrdvfpgcpeidhgyaylndkpgl
gidideakaakypceggipswtmartpdgtasrp