>2fr1A (A:) observed residues (from ATOM records)
devsalryriewrptgageparldgtwlvakyagtadetstaarealesagarvrelvvd
arcgrdelaerlrsvgevagvlsllavdeaepeeaplalasladtlslvqamvsaelgcp
lwtvtesavatgpfervrnaahgalwgvgrvialenpavwgglvdvpagsvaelarhlaa
vvsggagedqlalradgvygrrwvraaapatddewkptgtvlvtggtggvggqiarwlar
rgaphlllvsrsgpdadgagelvaelealgarttvaacdvtdresvrellggigddvpls
avfhaaatlddgtvdtltgerierasrakvlgarnlheltreldltafvlfssfasafga
pglggyapgnayldglaqqrrsdglpatavawgtwafrrhgviemppetacralqnaldr
aevcpividvrwdrfllaytaqrptrlfdeiddarr