>4fp1B (B:) observed residues (from ATOM records)
evlitglrtravnvplaypvhtavgtvgtaplvlidlatsagvvghsylfaytpvalksl
kqllddmaamivneplapvsleamlakrfclagytglirmaaagidmaawdalgkvhetp
lvkllganarpvqaydshsldgvklateravtaaelgfravktkigypaldqdlavvrsi
rqavgddfgimvdynqsldvpaaikrsqalqqegvtwieeptlqhdyeghqriqsklnvp
vqmgenwlgpeemfkalsigacrlampdamkiggvtgwirasalaqqfgipmsshlfqei
sahllaatptahwlerldlagsvieptltfeggnavipdlpgvgiiwrekeigkylv