Bioinformatics Analysis, Prokaryotic Expression, and Antiserum Preparation of hnRNP A1 Protein

The purified protein was used to immunize C57BL mice to produce polyclonal antibodies, and the antibody titer was determined by indirect ELISA.Results The highest expression of hnRNP A1 was achieved under conditions of 0.4 mM IPTG, induction temperature of 42°C, and induction time of 8 hours. The purified protein concentration reached 2.0563 μg/μl, and Western Blot confirmed the target protein. The antibody titer detected by indirect ELISA was 1:409,600.Conclusion The physicochemical properties of hnRNP A1 were successfully analyzed, high-efficiency expression of hnRNP A1 protein was achieved, and high-titer mouse-derived polyclonal antibodies against hnRNP A1 were prepared, providing a valuable tool for further research.