DNA constructs
pLVX-EGFP-OspC1, pLVX-EGFP-OspC1(E187A/H322A), pEGFP-N1-UBE1L-Myc, pEGFP-N1-UBCH8-Myc, pCDNA3.1-HERC5-Myc, pCDNA3.1-HERC5-Flag, pCMV-HA-ISG15, pLVX-Flag-ISG15-IRES-ZsGreen1, pCDNA3.1-Flag-RIG-I.