Immunogen sequence: DVLVEYQGEG RNVTDPTCPS LSPGVSQCFP DCVCEDAYNN TYACVRTMSA LWNLQYCEFD DQEVFVEVYN LTADPDQITN IAKTIDPELL GKMNYRLMML QSCSGPTCRT PGVFDPGYRF DPRLMFSNRG SVRTRRF. GNS is a lysosomal enzyme found in all cells. It is involved in the catabolism of