>2fprB (B:) observed residues (from ATOM records)
qkylfidrdgtliseppsdfqvdrfdklafepgvipqllklqkagyklvmitnqdglgtq
sfpqadfdgphnlmmqiftsqgvqfdevlicphlpadecdcrkpkvklverylamdrans
yvigdratdiqlaenmginglrydretlnwpmigeqltrr