CPA1

Across TCGA pan-cancer cohorts, CPA1 mass-spec protein differs between tumor and matched normal tissue in 2 of 18 cancer types tested, making tumor–normal expression one of CPA1’s most consistent transcriptional readouts.

The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where CPA1 mass-spec protein is repressed in tumor relative to normal tissue. In most cancer types CPA1 is over-expressed in tumor, although a few such as PDAC and COAD show the opposite, repressed pattern.

PDAC and COAD are the cancer types where CPA1 tumor–normal differential expression is most reproducible.

mass-spec protein tumor vs normal associations by lineage

Ranked by sampling consensus. Fold-change is the tumor-versus-normal difference in CPA1 mass-spec protein (log₂); positive values indicate higher expression in tumor. p-values are from the differential-expression test.

Lineage	Gender	Stage	Fold-change	p	Sampling consensus
PDAC	Female	All	−2.815	<.001	8	view →
COAD	All	III,IV	−0.768	.032	2	view →

Pink = over-expressed in tumor, green = repressed in tumor. Showing the 2 strongest of 2 lineages.

CPA1–PDAC

Open the PDAC breakdown →