>6u13A (A:) observed residues (from ATOM records)
eaplpqlraytvdaswlqpmaplqvadhtwqigtedltallvqtaegavlldggmpqmag
hlldnmklrgvapqdlrlillshahadhagpvaelkrrtgahvaanaetavllarggsnd
lhfgdgityppasadriimdgevvtvggiaftahfmpghtpgstawtwtdtrdgkpvria
yadslsapgyqlkgnpryprliedykrsfatvralpcdllltphpgasnwnyavgskasa
ealtcnayadaaekkfdaqlaretag