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

The strongest signal is observed in clear cell renal cell carcinoma (CCRCC), where BCR mass-spec protein is repressed in tumor relative to normal tissue. In most cancer types BCR is over-expressed in tumor, although a few such as CCRCC show the opposite, repressed pattern.

CCRCC and HNSC are the cancer types where BCR 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 BCR 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
CCRCC	Male	IV	−0.656	<.001	12	view →
HNSC	All	All	+0.095	.026	3	view →

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

Exploration

Same gene, other analysis: BCR RNA expression & survival · all BCR data types