>1a4iA (A:) observed residues (from ATOM records)
apaeilngkeisaqirarlknqvtqlkeqvpgftprlailqvgnrddsnlyinvklkaae
eigikathiklprtttesevmkyitslnedstvhgflvqlpldsensinteevinaiape
kdvdgltsinagrlargdlndcfipctpkgcleliketgvpiagrhavvvgrskivgapm
hdlllwnnatvttchsktahldeevnkgdilvvatgqpemvkgewikpgaividcginyk
vvgdvaydeakerasfitpvpggvgpmtvamlmqstvesakrfle