>3fa4L (L:) observed residues (from ATOM records)
taatslrralenpdsfivapgvydglsarvalsagfdalymtgagtaasvhgqadlgict
lndmranaemisnispstpviadadtgyggpimvartteqysrsgvaafhiedqvqtkrc
ghlagkilvdtdtyvtriraavqarqrigsdivviartdslqthgyeesvarlraardag
advgflegitsremarqviqdlagwplllnmvehgatpsisaaeakemgfriiifpfaal
gpavaamreameklkrdgipgldkemtpqmlfrvcgldesmkvdaqag