>2ri4A (A:) SEQRES residues vlsaadksnvkaawgkvggnagaygaealermflsfpttktyfphfdlshgsaqvkghge kvaaaltkavghlddlpgtlsdlsdlhahklrvdpvnfkllshsllvtlachlpndftpa vhasldkflanvstvltskyr