Immunogen sequence: CPCPSDKPTS TSRNVKRACS DLEFREVANR LRDWFKALHE SGSQNKKTKT LLRPERSRFD TSILPICKDS LGWMFNRLDT NYDLLLDQSE LRSIYLDKNE QCTKAFFNSC DTYKDSLISN NEWCYCFQRQ QDPPCQTELS NIQKRQGVKK LLGQYIPLCD EDGYYKPTQC HGSVGQCWCV DRYGNEVMGS RINGVADCAI D. Proteoglyca