HNRNPU and infection: We infected SCR, hnRNP K knockdown, and hnRNP U knockdown RAW 264.7 cell lines with an overnight culture of Salmonella (53) at an MOI of 10 and measured colony forming units (CFUs) at 2h (a measure of internalization) and 20h (a measure of intracellular replication) post-infection.