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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):
Mixed
Protein evidencei
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 - normal tissuesi
Reliability score (score description), divided into Enhanced, Supported, Approved, or Uncertain, is evaluated in normal tissues and based on consistency between antibody staining pattern, available RNA-Seq and gene/protein characterization data, as well as similarity between independent antibodies targeting the same protein.
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.
Gene product is not prognostic.
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RNA EXPRESSION OVERVIEWi
RNA expression overview shows RNA-seq data from The Cancer Genome Atlas (TCGA).
TCGA dataseti
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. The cancer types are color-coded according to which type of normal organ the cancer originates from.
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, color-coded bars indicate the percentage of patients (maximum 12 patients) with high and medium protein expression level. The cancer types are color-coded according to which type of normal organ the cancer originates from. Low or not detected protein expression results in a white bar. Mouse-over function shows details about expression level and normal tissue of origin. 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.
Several cases of most cancer tissues showed weak to moderate nuclear positivity.
GENE INFORMATIONi
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.
Gene name
LIG4
Synonyms
Description
DNA ligase 4 (HGNC Symbol)
Entrez gene summary
The protein encoded by this gene is a DNA ligase that joins single-strand breaks in a double-stranded polydeoxynucleotide in an ATP-dependent reaction. This protein is essential for V(D)J recombination and DNA double-strand break (DSB) repair through nonhomologous end joining (NHEJ). This protein forms a complex with the X-ray repair cross complementing protein 4 (XRCC4), and further interacts with the DNA-dependent protein kinase (DNA-PK). Both XRCC4 and DNA-PK are known to be required for NHEJ. The crystal structure of the complex formed by this protein and XRCC4 has been resolved. Defects in this gene are the cause of LIG4 syndrome. Alternatively spliced transcript variants encoding the same protein have been observed. [provided by RefSeq, Jul 2008]
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). The region with the lowest possible identity is always selected for antigen design, with a maximum identity of 60% allowed for designing a single-target antigen (read more).
The curve in blue displays the predicted antigenicity i.e. the tendency for different regions of the protein to generate an immune response, with peak regions being predicted to be more antigenic.The curve shows average values based on a sliding window approach using an in-house propensity scale. (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.
LIG4-001
LIG4-002
LIG4-003
LIG4-004
LIG4-201
PROTEIN INFORMATIONi
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.
P49917 [Direct mapping] DNA ligase 4 A0A024RE06 [Target identity:100%; Query identity:100%] DNA ligase
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Enzymes ENZYME proteins Ligase Predicted intracellular proteins Cancer-related genes Candidate cancer biomarkers Disease related genes Potential drug targets Protein evidence (Ezkurdia et al 2014)
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GO:0000012 [single strand break repair] GO:0000166 [nucleotide binding] GO:0000784 [nuclear chromosome, telomeric region] GO:0000793 [condensed chromosome] GO:0001701 [in utero embryonic development] GO:0002328 [pro-B cell differentiation] GO:0003677 [DNA binding] GO:0003909 [DNA ligase activity] GO:0003910 [DNA ligase (ATP) activity] GO:0005515 [protein binding] GO:0005524 [ATP binding] GO:0005634 [nucleus] GO:0005654 [nucleoplasm] GO:0005737 [cytoplasm] GO:0005829 [cytosol] GO:0005886 [plasma membrane] GO:0005925 [focal adhesion] GO:0005958 [DNA-dependent protein kinase-DNA ligase 4 complex] GO:0006260 [DNA replication] GO:0006266 [DNA ligation] GO:0006281 [DNA repair] GO:0006297 [nucleotide-excision repair, DNA gap filling] GO:0006302 [double-strand break repair] GO:0006303 [double-strand break repair via nonhomologous end joining] GO:0006310 [DNA recombination] GO:0006974 [cellular response to DNA damage stimulus] GO:0007049 [cell cycle] GO:0007417 [central nervous system development] GO:0008022 [protein C-terminus binding] GO:0008283 [cell proliferation] GO:0010165 [response to X-ray] GO:0010212 [response to ionizing radiation] GO:0010332 [response to gamma radiation] GO:0016874 [ligase activity] GO:0032807 [DNA ligase IV complex] GO:0033077 [T cell differentiation in thymus] GO:0033151 [V(D)J recombination] GO:0033152 [immunoglobulin V(D)J recombination] GO:0033153 [T cell receptor V(D)J recombination] GO:0035019 [somatic stem cell population maintenance] GO:0043524 [negative regulation of neuron apoptotic process] GO:0045190 [isotype switching] GO:0046872 [metal ion binding] GO:0048146 [positive regulation of fibroblast proliferation] GO:0050769 [positive regulation of neurogenesis] GO:0051102 [DNA ligation involved in DNA recombination] GO:0051103 [DNA ligation involved in DNA repair] GO:0051276 [chromosome organization] GO:0051301 [cell division] GO:0051402 [neuron apoptotic process] GO:0070419 [nonhomologous end joining complex] GO:0071285 [cellular response to lithium ion] GO:0071897 [DNA biosynthetic process] GO:0075713 [establishment of integrated proviral latency] GO:0097680 [double-strand break repair via classical nonhomologous end joining] GO:2001252 [positive regulation of chromosome organization]
P49917 [Direct mapping] DNA ligase 4 A0A024RE06 [Target identity:100%; Query identity:100%] DNA ligase
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Enzymes ENZYME proteins Ligase Predicted intracellular proteins Cancer-related genes Candidate cancer biomarkers Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0000012 [single strand break repair] GO:0000166 [nucleotide binding] GO:0000784 [nuclear chromosome, telomeric region] GO:0000793 [condensed chromosome] GO:0001701 [in utero embryonic development] GO:0002328 [pro-B cell differentiation] GO:0003677 [DNA binding] GO:0003909 [DNA ligase activity] GO:0003910 [DNA ligase (ATP) activity] GO:0005515 [protein binding] GO:0005524 [ATP binding] GO:0005634 [nucleus] GO:0005654 [nucleoplasm] GO:0005737 [cytoplasm] GO:0005829 [cytosol] GO:0005886 [plasma membrane] GO:0005925 [focal adhesion] GO:0005958 [DNA-dependent protein kinase-DNA ligase 4 complex] GO:0006260 [DNA replication] GO:0006266 [DNA ligation] GO:0006281 [DNA repair] GO:0006297 [nucleotide-excision repair, DNA gap filling] GO:0006302 [double-strand break repair] GO:0006303 [double-strand break repair via nonhomologous end joining] GO:0006310 [DNA recombination] GO:0006974 [cellular response to DNA damage stimulus] GO:0007049 [cell cycle] GO:0007417 [central nervous system development] GO:0008022 [protein C-terminus binding] GO:0008283 [cell proliferation] GO:0010165 [response to X-ray] GO:0010332 [response to gamma radiation] GO:0016874 [ligase activity] GO:0032807 [DNA ligase IV complex] GO:0033077 [T cell differentiation in thymus] GO:0033151 [V(D)J recombination] GO:0033152 [immunoglobulin V(D)J recombination] GO:0033153 [T cell receptor V(D)J recombination] GO:0035019 [somatic stem cell population maintenance] GO:0043524 [negative regulation of neuron apoptotic process] GO:0045190 [isotype switching] GO:0046872 [metal ion binding] GO:0048146 [positive regulation of fibroblast proliferation] GO:0050769 [positive regulation of neurogenesis] GO:0051102 [DNA ligation involved in DNA recombination] GO:0051103 [DNA ligation involved in DNA repair] GO:0051276 [chromosome organization] GO:0051301 [cell division] GO:0051402 [neuron apoptotic process] GO:0070419 [nonhomologous end joining complex] GO:0071897 [DNA biosynthetic process] GO:0075713 [establishment of integrated proviral latency] GO:0097680 [double-strand break repair via classical nonhomologous end joining] GO:2001252 [positive regulation of chromosome organization]
P49917 [Direct mapping] DNA ligase 4 A0A024RE06 [Target identity:100%; Query identity:100%] DNA ligase
Show all
Enzymes ENZYME proteins Ligase Predicted intracellular proteins Cancer-related genes Candidate cancer biomarkers Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000012 [single strand break repair] GO:0000166 [nucleotide binding] GO:0000784 [nuclear chromosome, telomeric region] GO:0000793 [condensed chromosome] GO:0001701 [in utero embryonic development] GO:0002328 [pro-B cell differentiation] GO:0003677 [DNA binding] GO:0003909 [DNA ligase activity] GO:0003910 [DNA ligase (ATP) activity] GO:0005515 [protein binding] GO:0005524 [ATP binding] GO:0005634 [nucleus] GO:0005654 [nucleoplasm] GO:0005737 [cytoplasm] GO:0005829 [cytosol] GO:0005886 [plasma membrane] GO:0005925 [focal adhesion] GO:0005958 [DNA-dependent protein kinase-DNA ligase 4 complex] GO:0006260 [DNA replication] GO:0006266 [DNA ligation] GO:0006281 [DNA repair] GO:0006297 [nucleotide-excision repair, DNA gap filling] GO:0006302 [double-strand break repair] GO:0006303 [double-strand break repair via nonhomologous end joining] GO:0006310 [DNA recombination] GO:0006974 [cellular response to DNA damage stimulus] GO:0007049 [cell cycle] GO:0007417 [central nervous system development] GO:0008022 [protein C-terminus binding] GO:0008283 [cell proliferation] GO:0010165 [response to X-ray] GO:0010332 [response to gamma radiation] GO:0016874 [ligase activity] GO:0032807 [DNA ligase IV complex] GO:0033077 [T cell differentiation in thymus] GO:0033151 [V(D)J recombination] GO:0033152 [immunoglobulin V(D)J recombination] GO:0033153 [T cell receptor V(D)J recombination] GO:0035019 [somatic stem cell population maintenance] GO:0043524 [negative regulation of neuron apoptotic process] GO:0045190 [isotype switching] GO:0046872 [metal ion binding] GO:0048146 [positive regulation of fibroblast proliferation] GO:0050769 [positive regulation of neurogenesis] GO:0051102 [DNA ligation involved in DNA recombination] GO:0051103 [DNA ligation involved in DNA repair] GO:0051276 [chromosome organization] GO:0051301 [cell division] GO:0051402 [neuron apoptotic process] GO:0070419 [nonhomologous end joining complex] GO:0071897 [DNA biosynthetic process] GO:0075713 [establishment of integrated proviral latency] GO:0097680 [double-strand break repair via classical nonhomologous end joining] GO:2001252 [positive regulation of chromosome organization]
P49917 [Direct mapping] DNA ligase 4 A0A024RE06 [Target identity:100%; Query identity:100%] DNA ligase
Show all
Enzymes ENZYME proteins Ligase Predicted intracellular proteins Cancer-related genes Candidate cancer biomarkers Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000012 [single strand break repair] GO:0000166 [nucleotide binding] GO:0000784 [nuclear chromosome, telomeric region] GO:0000793 [condensed chromosome] GO:0001701 [in utero embryonic development] GO:0002328 [pro-B cell differentiation] GO:0003677 [DNA binding] GO:0003909 [DNA ligase activity] GO:0003910 [DNA ligase (ATP) activity] GO:0005515 [protein binding] GO:0005524 [ATP binding] GO:0005634 [nucleus] GO:0005654 [nucleoplasm] GO:0005737 [cytoplasm] GO:0005829 [cytosol] GO:0005886 [plasma membrane] GO:0005925 [focal adhesion] GO:0005958 [DNA-dependent protein kinase-DNA ligase 4 complex] GO:0006260 [DNA replication] GO:0006266 [DNA ligation] GO:0006281 [DNA repair] GO:0006297 [nucleotide-excision repair, DNA gap filling] GO:0006302 [double-strand break repair] GO:0006303 [double-strand break repair via nonhomologous end joining] GO:0006310 [DNA recombination] GO:0006974 [cellular response to DNA damage stimulus] GO:0007049 [cell cycle] GO:0007417 [central nervous system development] GO:0008022 [protein C-terminus binding] GO:0008283 [cell proliferation] GO:0010165 [response to X-ray] GO:0010332 [response to gamma radiation] GO:0016874 [ligase activity] GO:0032807 [DNA ligase IV complex] GO:0033077 [T cell differentiation in thymus] GO:0033151 [V(D)J recombination] GO:0033152 [immunoglobulin V(D)J recombination] GO:0033153 [T cell receptor V(D)J recombination] GO:0035019 [somatic stem cell population maintenance] GO:0043524 [negative regulation of neuron apoptotic process] GO:0045190 [isotype switching] GO:0046872 [metal ion binding] GO:0048146 [positive regulation of fibroblast proliferation] GO:0050769 [positive regulation of neurogenesis] GO:0051102 [DNA ligation involved in DNA recombination] GO:0051103 [DNA ligation involved in DNA repair] GO:0051276 [chromosome organization] GO:0051301 [cell division] GO:0051402 [neuron apoptotic process] GO:0070419 [nonhomologous end joining complex] GO:0071897 [DNA biosynthetic process] GO:0075713 [establishment of integrated proviral latency] GO:0097680 [double-strand break repair via classical nonhomologous end joining] GO:2001252 [positive regulation of chromosome organization]