Analysis of the purified IL-7/HGFβ receptor proteins. The IL-7/HGFβ receptor complex was isolated on a scIL-7/HGFβ affinity gel from purified culture-generated CLP/pre-pro-B cells. The eluates were subjected to SDS-PAGE under reducing (R) or nonreducing (NR) conditions, and Western blotting was done with antibodies to IL-7Rα, γc, or c-Met.