PTK2

Across TCGA pan-cancer cohorts, PTK2 mass-spec protein differs between tumor and matched normal tissue in 3 of 18 cancer types tested, making tumor–normal expression one of PTK2’s most consistent transcriptional readouts.

The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where PTK2 mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types PTK2 is over-expressed in tumor, although a few such as LSCC and CCRCC show the opposite, repressed pattern.

HNSC, LSCC, and CCRCC are the cancer types where PTK2 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 PTK2 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
HNSC	All	III,IV	+0.220	<.001	11	view →
LSCC	Male	III,IV	−0.336	<.001	8	view →
CCRCC	Male	II,III,IV	−0.095	.025	2	view →

Pink = over-expressed in tumor, green = repressed in tumor. Showing the 3 strongest of 3 lineages.

PTK2–HNSC

Open the HNSC breakdown →