RNA category is based on mRNA expression levels in the analyzed samples (RNA assay description). The categories include: tissue/cell line enriched, group enriched, tissue/cell line enhanced, expressed in all, mixed and not detected. RNA category is calculated separately for The Cancer Genome Atlas (TCGA) data from cancer tissues and internally generated Human Protein Atlas (HPA) data from normal tissues and cell lines.
TCGA (cancer tissue):
Expressed in all
HPA (cell line):
Expressed in all
HPA (normal tissue):
Expressed in all
Protein evidence scores are generated from several independent sources and are classified as evidence at i) protein level, ii) transcript level, iii) no evidence, or iv) not available.
Evidence at protein level
Protein expression normal tissuei
A summary of the overall protein expression pattern across the analyzed normal tissues. The summary is based on knowledge-based annotation.
"Estimation of protein expression could not be performed. View primary data." is shown for genes analyzed with a knowledge-based approach where available RNA-seq and gene/protein characterization data has been evaluated as not sufficient in combination with immunohistochemistry data to yield a reliable estimation of the protein expression profile.
Standardized explanatory sentences with additional information required for full understanding of the knowledge-based expression profile.
Antibody staining mainly consistent with RNA expression data.
Reliability score (score description), divided into Supported, Approved, or Uncertain, is evaluated in normal tissues and based on consistency between the staining pattern of one antibody or several antibodies with RNA-seq data and available gene/protein characterization data.
Kaplan-Meier plots for all cancers where high expression of this gene has significant (p<0.001) association with patient survival are shown in this summary. Whether the prognosis is favourable or unfavourable is indicated in brackets. Each Kaplan-Meier plot is clickable and redirects to a detailed page that includes individual expression and survival data for patients with the selected cancer.
RNA expression overview shows RNA-seq data from The Cancer Genome Atlas (TCGA).
RNA-seq data in 17 cancer types are reported as median FPKM (number Fragments Per Kilobase of exon per Million reads), generated by the The Cancer Genome Atlas (TCGA). RNA cancer tissue category is calculated based on mRNA expression levels across all 17 cancer tissues and include: cancer tissue enriched, cancer group enriched, cancer tissue enhanced, expressed in all, mixed and not detected. To access cancer specific RNA and prognostic data, click on the cancer name.
Antibody staining in 20 different cancers is summarized by a selection of four standard cancer tissue samples representative of the overall staining pattern. From left: colorectal cancer, breast cancer, prostate cancer and lung cancer. An additional fifth image can be added as a complement. The assay and annotation is described here. Note that samples used for immunohistochemistry by the Human Protein Atlas do not correspond to samples in the TCGA dataset.
For each cancer, the fraction of samples with protein expression level high, medium, low, or not detected are provided by the blue-scale color-coding (as described by the color-coding scale in the box to the left). The length of the bar represents the number of patient samples analyzed (max=12 patients). The images and annotations can be accessed by clicking on the cancer name or protein expression bar. If more than one antibody is analyzed, the tabs at the top of the staining summary section can be used to toggle between the different antibodies. The mouse-over function displays additional data for the features in the staining summary view.
Next to the cancer staining data, the protein expression data of normal tissues or specific cell types corresponding to each cancer are shown and protein expression levels are indicated by the blue-scale color coding.
A manually written summary of the overall protein expression pattern across the analyzed cancer tissues.
A majority of cancer tissues displayed weak to moderate cytoplasmic immunoreactivity. Testicular cancers and most renal, stomach, pancreatic and liver cancers were negative.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
NFKBIA (HGNC Symbol)
IkappaBalpha, IKBA, MAD-3, NFKBI
Nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha (HGNC Symbol)
Entrez gene summary
This gene encodes a member of the NF-kappa-B inhibitor family, which contain multiple ankrin repeat domains. The encoded protein interacts with REL dimers to inhibit NF-kappa-B/REL complexes which are involved in inflammatory responses. The encoded protein moves between the cytoplasm and the nucleus via a nuclear localization signal and CRM1-mediated nuclear export. Mutations in this gene have been found in ectodermal dysplasia anhidrotic with T-cell immunodeficiency autosomal dominant disease. [provided by RefSeq, Aug 2011]
The protein browser displays the antigen location on the target protein(s) and the features of the target protein. The tabs at the top of the protein view section can be used to switch between the different splice variants to which an antigen has been mapped.
At the top of the view, the position of the antigen (identified by the corresponding HPA identifier) is shown as a green bar. A yellow triangle on the bar indicates a <100% sequence identity to the protein target.
Under the antigens, the maximum percent sequence identity of the protein to all other proteins from other human genes is displayed, using a sliding window of 10 aa residues (HsID 10) or 50 aa residues (HsID 50) (read more).
If a signal peptide is predicted by a majority of the signal peptide predictors SPOCTOPUS, SignalP 4.0, and Phobius (turquoise) and/or transmembrane regions (orange) are predicted by MDM, these are displayed.
Low complexity regions are shown in yellow and InterPro regions in green. Common (purple) and unique (grey) regions between different splice variants of the gene are also displayed (read more), and at the bottom of the protein view is the protein scale.
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The ENSP identifier links to the Ensembl website protein summary, while the ENST identifier links to the Ensembl website transcript summary for the selected splice variant. The data in the UniProt column can be expanded to show links to all matching UniProt identifiers for this protein.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The Gene Ontology terms assigned to this protein are listed if expanding the Gene ontology column. The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide (according to a majority of the signal peptide predictors SPOCTOPUS, SignalP 4.0, and Phobius) and the number of predicted transmembrane region(s) (according to MDM) are also reported.
THUMBUP predicted membrane proteins Predicted intracellular proteins Transcription factors Immunoglobulin fold Cancer-related genes Candidate cancer biomarkers Disease related genes Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
GO:0000060 [protein import into nucleus, translocation] GO:0002223 [stimulatory C-type lectin receptor signaling pathway] GO:0002224 [toll-like receptor signaling pathway] GO:0002755 [MyD88-dependent toll-like receptor signaling pathway] GO:0002756 [MyD88-independent toll-like receptor signaling pathway] GO:0005515 [protein binding] GO:0005634 [nucleus] GO:0005737 [cytoplasm] GO:0005829 [cytosol] GO:0005886 [plasma membrane] GO:0006915 [apoptotic process] GO:0007253 [cytoplasmic sequestering of NF-kappaB] GO:0008134 [transcription factor binding] GO:0008139 [nuclear localization sequence binding] GO:0010468 [regulation of gene expression] GO:0010745 [negative regulation of macrophage derived foam cell differentiation] GO:0010875 [positive regulation of cholesterol efflux] GO:0010888 [negative regulation of lipid storage] GO:0016032 [viral process] GO:0019899 [enzyme binding] GO:0031072 [heat shock protein binding] GO:0031625 [ubiquitin protein ligase binding] GO:0031663 [lipopolysaccharide-mediated signaling pathway] GO:0032088 [negative regulation of NF-kappaB transcription factor activity] GO:0032270 [positive regulation of cellular protein metabolic process] GO:0032403 [protein complex binding] GO:0032481 [positive regulation of type I interferon production] GO:0032495 [response to muramyl dipeptide] GO:0032496 [response to lipopolysaccharide] GO:0033256 [I-kappaB/NF-kappaB complex] GO:0034134 [toll-like receptor 2 signaling pathway] GO:0034138 [toll-like receptor 3 signaling pathway] GO:0034142 [toll-like receptor 4 signaling pathway] GO:0034146 [toll-like receptor 5 signaling pathway] GO:0034162 [toll-like receptor 9 signaling pathway] GO:0034166 [toll-like receptor 10 signaling pathway] GO:0035666 [TRIF-dependent toll-like receptor signaling pathway] GO:0035994 [response to muscle stretch] GO:0038095 [Fc-epsilon receptor signaling pathway] GO:0038123 [toll-like receptor TLR1:TLR2 signaling pathway] GO:0038124 [toll-like receptor TLR6:TLR2 signaling pathway] GO:0042127 [regulation of cell proliferation] GO:0042345 [regulation of NF-kappaB import into nucleus] GO:0042802 [identical protein binding] GO:0042994 [cytoplasmic sequestering of transcription factor] GO:0043066 [negative regulation of apoptotic process] GO:0043234 [protein complex] GO:0043330 [response to exogenous dsRNA] GO:0043392 [negative regulation of DNA binding] GO:0045087 [innate immune response] GO:0045638 [negative regulation of myeloid cell differentiation] GO:0045746 [negative regulation of Notch signaling pathway] GO:0045893 [positive regulation of transcription, DNA-templated] GO:0045944 [positive regulation of transcription from RNA polymerase II promoter] GO:0048011 [neurotrophin TRK receptor signaling pathway] GO:0050852 [T cell receptor signaling pathway] GO:0051059 [NF-kappaB binding] GO:0051092 [positive regulation of NF-kappaB transcription factor activity] GO:0070417 [cellular response to cold] GO:0070427 [nucleotide-binding oligomerization domain containing 1 signaling pathway] GO:0070431 [nucleotide-binding oligomerization domain containing 2 signaling pathway] GO:0071345 [cellular response to cytokine stimulus] GO:0071407 [cellular response to organic cyclic compound]