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. 2023 Mar 24;9:32. doi: 10.1038/s41421-023-00533-3

Fig. 1. KCTD7 is a component of the Cullin-3 E3 ligase complex and interacts with calpains.

Fig. 1

a Co-IP analysis of Flag-tagged KCTD7 and myc-tagged Cullin-3 in HEK293 cells. b Co-IP analysis of KCTD7 mutant constructs and Cullin-3-Myc in HEK293 cells. c Co-IP analysis of KCTD7 deletion constructs and Cullin-3-Myc in HEK293 cells. d Co-IP analyses of Flag-tagged KCTD7, myc-tagged Cullin-3, and HA-tagged Rbx1 in HEK293 cells. e Co-IP analyses of GFP-tagged KCTD7 and Flag-tagged calpain 1, calpain 2, and CAPNS1 in HEK293 cells. f Confocal microscopy of HeLa cells showing KCTD7-GFP co-distribute with calpain 1-Flag, calpain 2-Flag, and CAPNS1-Flag. Trace outline is used for line-scan (white dashed line) analysis of relative fluorescence intensity of indicated protein signals. Scale bar, 10 μm. g Co-IP analyses of myc-tagged Cullin-3 with Flag-tagged calpain 1, calpain 2 and CAPNS1 in HEK293 cells. h Co-IP analyses of Flag-tagged KCTD7 mutant constructs with endogenous calpain 1, calpain 2, and CAPNS1 in HEK293 cells.