The purity and coDceniration of total RNA samples were detennined with NanoDrop ND-1000. Results were provided m Sample QC report. RNA-seq libraries of ac4c antibody enriched mRNAs and input mRNAs were prepared using KAPA Stranded mRNA-seq Kit (Illumina). And finally, the completed libraries were qualified by Agilent 2100 Bioanalyzer. The ac-seq  of SiHa and KONAT10SiHa cells