>3puwB (B:) observed residues (from ATOM records)
asvqlqnvtkawgevvvskdinldihegefvvfvgpsgcgkstllrmiagletitsgdlf
igekrmndtppaergvgmvfqsyalyphlsvaenmsfglklagakkevinqrvnqvaevl
qlahlldrkpkalsggqrqrvaigrtlvaepsvflldeplsnldaalrvqmrieisrlhk
rlgrtmiyvthdqveamtladkivvldagrvaqvgkplelyhypadrfvagfigspkmnf
lpvtataidqvqvelpmpnrqqvwlpvenmslgirpehllpsdiadvilegevqvveqlg
netqihiqipsirqnlvyrqndvvlveegatfaiglpperchlfredgtacrrlhkep