Figure 2. The mRNA and protein levels of COL1A2 in colon adenocarcinoma (COAD). The differential gene expression of COL1A2 in COAD and normal tissues using (A) unpaired and (B) paired t-tests. The COL1A2 protein levels in (C) COAD and (D) normal colon tissues using the HPA database. The COL1A2 proteins in (E) COAD and (F) normal colon tissues by the immunohistochemistry analysis.