PTGER4 and colorectal cancer: Of the 138 unique, promoter associated genes, HumanBase indicated that the SRY-box transcription factor 4 (SOX4), ATPase plasma membrane Ca2+ transporting 4 (ATP2B4), CCAAT enhancer binding protein alpha (CEBPA), prostaglandin E receptor 4 (PTGER4), ATP binding cassette subfamily A member 1 (ABCA1) and polo-like kinase 3 (PLK3) genes play a role in colorectal cancer development.