PROX1 and colorectal carcinoma: To confirm that PROX1 protein expression is associated with CRC carcinogenesis, we compared the four main phosphoprotein site expression levels of PROX1 protein in CRC and normal colorectal tissue samples using proteomic and genomic data from the CPTAC CRC and TCGA cohorts via the UALCAN online database (http://ualcan.path.uab.edu/analysis-prot.html) 20.