Immunogen sequence: TETTFTFPAP VQPVSLPSPT STDGDIHEDF CSVCRKSGQL LMCDTCSRVY HLDCLDPPLK TIPKGMWICP RCQDQMLKKE EAIPWPGTLA IVHSYIAYKA AKEEEKQKLL KWSSDLKQER EQLEQKVKQL SNSISKCMEM KNTILARQKE MHSSLEKVKQ LIRLIHGIDL SKPVDSEATV GAISNGPDCT PPANAATSTP APSPSSQSCT ANC