CR1 and infection: Subsequent transduction analysis using CTx001 at 100 000 multiplicity of infection on both RPE cell lines (hTERT-RPE1 and ARPE19) and human primary RPE showed mini-CR1 gene transcription by quantitative reverse transcription polymerase chain reaction (data not shown), and secretion of the mini-CR1 protein into the culture supernatant by Western blot analysis using a rabbit polyclonal antibody against mini-CR1 (Fig 5C).