SEQRES 1 D 77 HIS GLU GLY LEU ASP TYR VAL ASP GLN LYS ILE LEU ARG SEQRES 2 D 77 THR MET ILE GLU MET TYR GLY GLY GLY PRO VAL GLY LEU SEQRES 3 D 77 GLY THR LEU SER VAL ASN ILE ALA GLU GLU ARG GLU THR SEQRES 4 D 77 VAL GLU ASP MET TYR GLU PRO TYR LEU ILE GLN LYS GLY SEQRES 5 D 77 PHE ILE MET ARG THR ARG THR GLY ARG VAL ALA THR ALA SEQRES 6 D 77 LYS ALA TYR GLU HIS MET GLY TYR ASP TYR THR ARG