IGKV2-40

associated omics data
immunoglobulin kappa variable 2-40Genealiases: []

Q-omics provides the consensus-scored IGKV2-40 profile across patient tissues and cancer cell-line models. IGKV2-40 expression is associated with patient survival in 17 of 34 cancer types, with the highest sampling consensus in HNSC. Among the 18 cancer types available for tumor–normal comparison, IGKV2-40 is differentially expressed in 6, with the highest sampling consensus in LUAD. Additionally, IGKV2-40 RNA expression shows 6,165 significant pathway-activity associations, with the highest sampling consensus in HNSC. Together, these results highlight HNSC, and LUAD as cancer lineages where IGKV2-40 shows reproducible signals across survival, tumor–normal expression, and patient cross-omics analyses.

Every result is evaluated using two consensus scores. Sampling consensus measures how consistently a finding is reproduced within a cancer lineage across different conditions. Lineage consensus measures how broadly the result is shared across cancer types, distinguishing pan-cancer signals from lineage-specific patterns.

Survival associations

This table summarizes IGKV2-40 survival associations across molecular data types. IGKV2-40 RNA expression shows survival associations in the most cancer types (17). The rightmost column indicates the cancer type with the highest sampling consensus for each molecular layer.
IGKV2-40 data typeSurvival analysisLineage consensusLineage of highest sampling consensus
RNAKaplan–Meier17HNSC (115)view →
This table ranks reproducible IGKV2-40 RNA expression–survival associations across cancer types. High IGKV2-40 expression shows unfavorable associations in UCS and STAD, but favorable associations in HNSC, SKCM, BRCA and MESO. The HNSC Kaplan–Meier curve shows clear separation, with the low-expression group declining faster, consistent with the favorable association (log-rank p < 0.001). Together, the overview and detailed table identify HNSC as the clearest survival context for IGKV2-40 RNA expression.
LineageMeasureSplitStageAUC1
high
AUC2
low
pSampling consensus
HNSCDFSQuartileIV0.5010.284<.001115view →
UCSOSTertileAll0.1020.688<.001108view →
STADDFSQuartileAll0.5790.727.00450view →
SKCMDFSTertileIII,IV0.6580.445.00239view →
BRCADFSTertileAll0.5890.506.01233view →
MESOOSTertileIV1.0000.470.02421view →
Pink = unfavorable, green = favorable. all 17 lineages →

IGKV2-40-HNSC (DFS)

Kaplan–Meier survival curve for IGKV2-40 RNA expression in HNSC: high vs low expression groups.

Explore this curve interactively →

Tumor vs Normal expression

This table summarizes IGKV2-40 tumor–normal expression differences by data type. RNA shows broader differences across cancer types, with a lineage consensus of 6. The strongest signals are observed in LUAD for RNA.
IGKV2-40 data typeExpression analysisLineage consensusLineage of highest sampling consensus
RNABox plot6LUAD (6)view →
This table ranks reproducible tumor–normal expression differences for IGKV2-40. A negative fold-change indicates higher expression in normal tissue than in tumor tissue. IGKV2-40 shows lower tumor expression in READ, COAD and LIHC and higher tumor expression in LUAD, PAAD and HNSC. The LUAD box plot shows higher IGKV2-40 RNA expression in tumor versus normal tissue (log2 FC = +0.477, t-test p < 0.001).
LineageGenderStageFold-changepSampling consensus
LUADFemaleAll+0.477<.0016view →
READFemaleAll−0.546.0052view →
PAADMaleAll+0.360.0182view →
HNSCMaleIII,IV+0.271.0212view →
COADFemaleIII,IV−0.558<.0011view →
LIHCMaleAll−0.044.0491view →
Green = repressed in tumor. all 6 lineages →

IGKV2-40-LUAD

Tumor-vs-normal expression box plot for IGKV2-40 in LUAD.

Explore this plot interactively →

Cross-omics associations

This table shows molecular features associated with IGKV2-40 in patient tissues and cancer cell lines. In patient samples, IGKV2-40 shows the broadest associations at the RNA and protein expression levels, with HNSC recurring as the lineage with the largest associated feature set.
Associated data typeStrength (# associated data)Lineage of highest associated data
RNA
Function (RNA)6,165HNSC (3219)view →
Protein (mass-spec)5,443LSCC (1691)view →