>1usfA (A:) SEQRES residues mrsyraqgplpgfyhyypgvpavvgvrveervnfcpavwntglsadpplfgvsispkrft hglllkarrfsasfhpfgqkdlvhwlgshsgrevdkgqaphflghtgvpilegayaayel ellevhtfgdhdlfvgrvvavweeeglldekgrpkpglallyygkglygrpaeetfap