EXPDTA ELECTRON MICROSCOPY SEQRES 1 B 86 GLN TYR GLN ILE ASN VAL ASP GLN ALA GLN ALA GLY ALA SEQRES 2 B 86 MET GLY VAL SER ILE ALA GLU ILE ASN ASN THR MET ARG SEQRES 3 B 86 ILE ALA TRP GLY GLY SER TYR ILE ASN ASP PHE VAL ASP SEQRES 4 B 86 ARG GLY ARG VAL LYS LYS VAL TYR VAL GLN GLY ASP ALA SEQRES 5 B 86 GLY SER ARG MET MET PRO GLU ASP LEU ASN LYS TRP TYR SEQRES 6 B 86 VAL ARG ASN ASN LYS GLY GLU MET VAL PRO PHE SER ALA SEQRES 7 B 86 PHE ALA THR GLY GLU TRP THR TYR