Immunoprecipitation of major WT1 isoforms with C-19 antibody although not with regulate non-immune IgG was verified. However,PLOS One particular | DOI:ten.1371/journal.pone.0130578 June 19,ten /Novel WT1 Spliced IsoformEx4a(+)WT1 isoform was not co-precipitated with important WT1 isoform utilizing C-19 antibody (Figure B in S2 Fig). Thus, it appeared that Ex4a(+)WT1 isoform did not bodily associat