Immunogen sequence: MSGPLEGADG GGDPRPGESF CPGGVPSPGP PQHRPCPGPS LADDTDANSN GSSGNESNGH ESRGASQRSS HSSSSGNGKD SALLETTESS KSTNSQSPSP PSSSIAYSLL SASSEQDNPS TSGCSSEQSA RARTQKELMT ALRELKLRLP PERRGKGRSG TLATLQYALA CVKQVQANQE YYQQWSLEEG EPCSMDMSTY. Circadian rhy