KRAS and colorectal carcinoma: To determine whether the impact of KRAS mutations on the intratumoral colonization ability of ETBF in CRC was limited to the KRAS G12D site, we also constructed additional common KRAS mutation sites in CRC (Figure S2f).36 In comparison to KRAS EV, KRAS G13D MUT and KRAS G12V MUT significantly enhanced the adhesion ability of ETBF in CRC (Figure 2(f)).