>4lseB (B:) observed residues (from ATOM records)
aeiynkdgnkvdlygkavglhyfskgngensyggngdmtyarlgfkgetqinsdltgygq
weynfqgnnsegadaqtgnktrlafaglkyadvgsfdygrnygvvydalgytdmlpefgg
dtaysddffvgrvggvatyrnsnffglvdglnfavqylgknerdtarrsngdgvggsisy
eyegfgivgaygaadrtnlqeaqplgngkkaeqwatglkydanniylaanygetrnatpi
tnkftntsgfanktqdvllvaqyqfdfglrpsiaytkskakdvegigdvdlvnyfevgat
yyfnknmstyvdyiinqidsdnklgvgsddtvavgivyqf