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. 1999 Apr 19;189(8):1181–1194. doi: 10.1084/jem.189.8.1181

Figure 2.

Figure 2

Biochemical characterization of gp30/40. (A) 107 HPB-ALL cells lysed in Brij58-containing buffer were subjected to CD3 immunoprecipitation followed by in vitro kinase assay. 10% of the in vitro–labeled material was directly applied to two-dimensional IEF/SDS-PAGE (panels 1 and 2). The remaining 90% was subjected to reprecipitation using preimmune serum (panel 3) or immune anti-gp30/40 serum (panel 4). Panel 2 was overexposed to visualize gp30/40 in the CD3 immunoprecipitate. (B) The same experiment except that the precipitates were analyzed by one-dimensional SDS-PAGE under nonreducing (nr.) or reducing (red.) conditions. (C) Deglycosylation experiment. In vitro–labeled gp30/40 was left untreated (−) or incubated with buffer supplemented with endoglycosidase F (+) followed by SDS-PAGE and autoradiography.