ZP3 and cancer: According to the publicly available RNAseq data for CCLs, ZP3-Cancer is expressed in PC3 (4.8 TPM), but ZP3-Oocyte transcript levels are very low (0.6 TPM), while the other two ZP3 protein-coding transcripts (ZP3-203/-204), which also lack the genetic information for the N-terminal signal peptide, are absent.