>2d3vA (A:) observed residues (from ATOM records)
lskatlwaepgsvisrgnsvtircqgtleaqeyrlvkegspepwdtqnplepknkarfsi
psmtehhagryrcyyyspagwsepsdplelvvtgfynkptlsavtlqcgsrlrfdrfilt
eeklswtldsqltpsgqfqalfpvgpvtpshrwmlrcygsrrhilqvwsepsdlleipv