| Antigen | For WB positive control (#IGFBP51-C), Human IGFBP-5 (mol wt ~29 kDa) was expressed in E. coli and purified >95%). For Western blot +ve control (Cat # IGFBP51-C) is supplied in SDS-PAGE sample buffer (reduced). Load 10 ul/lane of IGFBP51-C for good visibility with antibody Cat # IGFBP52-M or mouse mono #IGFBP52-M |