>1extA (A:) SEQRES residues
mdsvcpqgkyihpqnnsicctkchkgtylyndcpgpgqdtdcrecesgsftasenhlrhc
lscskcrkemgqveissctvdrdtvcgcrknqyrhywsenlfqcfncslclngtvhlscq
ekqntvctchagfflrenecvscsnckkslectklclpqien