The sample data contain 1,807 positive interactions between 1,078 RNAs and 1,807 proteins and 1,436 negative interactions between 493 RNAs and 1,436 proteins. These benchmark RNA-protein data were collected from a previous publication (V Suresh, et al. Nucleic Acids Res. 43:1370-9, 2015) that aimed at identifying binding partners of proteins or RNAs.