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. 2021 Feb 28;6:90. doi: 10.1038/s41392-021-00477-8

Fig. 5.

Fig. 5

TRIM41 mediates Lys63-linked polyubiquitination of BCL10. a-c Trim41+/+ or Trim41–/– BMDM were infected with VSV (MOI = 1) or HSV-1 (MOI = 5) viruses for 2 h. Then whole-cell extracts (WCE) heated in buffer containing 1% SDS were immunoprecipitated (IP) with anti-BCL10 (a), anti-CARD9 (b), or anti-CARD11 (c) antibody plus protein A/G beads. Polyubiquitination of BCL10 (a), CARD9 (b), and CARD11 (c) was examined by Western blotting. d HEK293T cells were transiently transfected with Flag-tagged TRIM41 (or mutant) and Myc-tagged BCL10 vectors as indicated for 48 h. Then polyubiquitination of BCL10 was examined by Western blotting after immunoprecipitations with anti-Myc Sepharose Beads. e HEK293T cells were transiently transfected with Flag-tagged TRIM41, Myc-tagged BCL10, and HA-tagged Ub (mutants) vectors as indicated for 48 h. Then polyubiquitination of BCL10 was examined by Western blotting after immunoprecipitations with anti-Myc Sepharose Beads. f After incubation for 30 min, the in vitro polyubiquitination system was boiled for 5 min, and then polyubiquitinated BCL10 was examined by Western blotting against Ub after immunoprecipitations. g HEK293T cells were transiently transfected with Flag-tagged TRIM41 and Myc-tagged BCL10 (mutant) vectors as indicated for 48 h. Then polyubiquitination of BCL10 was examined by Western blotting after immunoprecipitations with anti-Myc Sepharose Beads. One representative experiment of three is shown