Across TCGA pan-cancer cohorts, SF3B3 mass-spec protein differs between tumor and matched normal tissue in 7 of 18 cancer types tested, making tumor–normal expression one of SF3B3’s most consistent transcriptional readouts.
The strongest signal is observed in colon adenocarcinoma (COAD), where SF3B3 mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types SF3B3 is over-expressed in tumor.
COAD, LUAD, and LSCC are the cancer types where SF3B3 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 SF3B3 mass-spec protein (log2); positive values indicate higher expression in tumor. p-values are from the differential-expression test.