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RNA category is based on mRNA expression levels in the analyzed samples (RNA assay description). The categories include: tissue enriched, group enriched, tissue enhanced, expressed in all, mixed and not detected. RNA category is calculated separately for data imported from The Genotype-Tissue Expression project (GTEX), FANTOM5 Consortium (FANTOM5) and internally generated Human Protein Atlas (HPA) data.
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 expressioni
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.
Cytoplasmic expression in most tissues. High expression in monocyte-derived cells in several tissues, including lung and placenta.
IMMUNOHISTOCHEMISTRY DATA RELIABILITY
Data reliability descriptioni
Standardized explanatory sentences with additional information required for full understanding of the knowledge-based expression profile.
Antibody staining mainly not consistent with RNA expression data.
Reliability scorei
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.
Below is an overview of RNA and protein expression data generated in the Human Protein Atlas project. Analyzed tissues are divided into color-coded groups according to which functional features they have in common. For each group, a list of included tissues is accessed by clicking on group name, group symbol, RNA bar, or protein bar. Subsequent selection of a particular tissue in this list links to the image data page.
Images of selected tissues give a visual summary of the protein expression profile furthest to the right.
The gray human body provides links to a histology dictionary when clicking on any part of the figure.
RNA expression (TPM)i
RNA-seq results generated in HPA are reported as number of transcripts per million (TPM). Each bar represents the highest expression score found in a particular group of tissues. The assay is described more in detail in Assays & Annotation.
Protein expression (score)i
Each bar represents the highest expression score found in a particular group of tissues. Protein expression scores are based on a best estimate of the "true" protein expression from a knowledge-based annotation, described more in detail under Assays & annotation. For genes where more than one antibody has been used, a collective score is set displaying the estimated true protein expression.
Protein expression data is shown for each of the 44 tissues. Color-coding is based on tissue groups, each consisting of tissues with functional features in common. Mouse-over function shows protein score for analyzed cell types in a selected tissue. To access image data click on tissue name or bar. Annotation of protein expression is described in detail in Assays & annotation.
For genes with available protein data for which a knowledge-based annotation gave inconclusive results, no protein expression data is displayed in the protein expression data overview. However, all immunohistochemical images are still available and the annotation data can be found under Primary data.
Organ
Expression
Alphabetical
RNA EXPRESSION OVERVIEWi
RNA expression overview shows RNA-data from three different sources: Internally generated Human Protein Atlas (HPA) RNA-seq data, RNA-seq data from the Genotype-Tissue Expression (GTEx) project and CAGE data from FANTOM5 project. Color-coding is based on tissue groups, each consisting of tissues with functional features in common. To access sample data, click on tissue name or bar.
HPA dataseti
HPA dataset RNA-seq tissue data is reported as mean TPM (transcripts per million), corresponding to mean values of the different individual samples from each tissue. Color-coding is based on tissue groups, each consisting of tissues with functional features in common. To access sample data, click on tissue name or bar. The RNA-seq assay is described in detail in Assays & Annotation.
RNA tissue category HPA HPA RNA tissue category (category description) is calculated based on mRNA expression levels across all tissues and include: tissue enriched, group enriched, tissue enhanced, expressed in all, mixed and not detected.
Organ
Expression
Alphabetical
RNA tissue category: Expressed in all
GTEx dataseti
GTEx dataset RNA-seq data is reported as median RPKM (reads per kilobase per million mapped reads), generated by the Genotype-Tissue Expression (GTEx) project. More information can be found in Assays & Annotation.
RNA tissue category GTEx GTEx RNA tissue category (category description) is calculated based on mRNA expression levels across all tissues and include: tissue enriched, group enriched, tissue enhanced, expressed in all, mixed and not detected.
Organ
Expression
Alphabetical
RNA tissue category: Expressed in all
FANTOM5 dataseti
FANTOM5 dataset Tissue data obtained through Cap Analysis of Gene Expression (CAGE) are reported as Tags Per Million, generated by the FANTOM5 project. More information can be found in Assays & Annotation.
RNA tissue category FANTOM5 FANTOM5 RNA tissue category (category description) is calculated based on gene expression levels across all tissues and include: tissue enriched, group enriched, tissue enhanced, expressed in all, mixed and not detected.
Organ
Expression
Alphabetical
RNA tissue category: Expressed in all
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
GPX1
Synonyms
Description
Glutathione peroxidase 1 (HGNC Symbol)
Entrez gene summary
The protein encoded by this gene belongs to the glutathione peroxidase family, members of which catalyze the reduction of organic hydroperoxides and hydrogen peroxide (H2O2) by glutathione, and thereby protect cells against oxidative damage. Other studies indicate that H2O2 is also essential for growth-factor mediated signal transduction, mitochondrial function, and maintenance of thiol redox-balance; therefore, by limiting H2O2 accumulation, glutathione peroxidases are also involved in modulating these processes. Several isozymes of this gene family exist in vertebrates, which vary in cellular location and substrate specificity. This isozyme is the most abundant, is ubiquitously expressed and localized in the cytoplasm, and whose preferred substrate is hydrogen peroxide. It is also a selenoprotein, containing the rare amino acid selenocysteine (Sec) at its active site. Sec is encoded by the UGA codon, which normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, designated the Sec insertion sequence (SECIS) element, that is necessary for the recognition of UGA as a Sec codon, rather than as a stop signal. This gene contains an in-frame GCG trinucleotide repeat in the coding region, and three alleles with 4, 5 or 6 repeats have been found in the human population. The allele with 4 GCG repeats has been significantly associated with breast cancer risk in premenopausal women. Alternatively spliced transcript variants and multiple pseudogenes of this gene have been identified. [provided by RefSeq, Jul 2016]
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.
GPX1-001
GPX1-002
GPX1-201
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.
Enzymes ENZYME proteins Oxidoreductases Phobius predicted secreted proteins Predicted intracellular proteins Plasma proteins Cancer-related genes Candidate cancer biomarkers Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000302 [response to reactive oxygen species] GO:0001659 [temperature homeostasis] GO:0001885 [endothelial cell development] GO:0002862 [negative regulation of inflammatory response to antigenic stimulus] GO:0004601 [peroxidase activity] GO:0004602 [glutathione peroxidase activity] GO:0005737 [cytoplasm] GO:0005739 [mitochondrion] GO:0005759 [mitochondrial matrix] GO:0005829 [cytosol] GO:0006195 [purine nucleotide catabolic process] GO:0006629 [lipid metabolic process] GO:0006641 [triglyceride metabolic process] GO:0006749 [glutathione metabolic process] GO:0006915 [apoptotic process] GO:0006979 [response to oxidative stress] GO:0007605 [sensory perception of sound] GO:0008283 [cell proliferation] GO:0008631 [intrinsic apoptotic signaling pathway in response to oxidative stress] GO:0009410 [response to xenobiotic stimulus] GO:0009609 [response to symbiotic bacterium] GO:0009611 [response to wounding] GO:0009636 [response to toxic substance] GO:0009650 [UV protection] GO:0010269 [response to selenium ion] GO:0010332 [response to gamma radiation] GO:0014902 [myotube differentiation] GO:0016491 [oxidoreductase activity] GO:0017124 [SH3 domain binding] GO:0018158 [protein oxidation] GO:0019372 [lipoxygenase pathway] GO:0033194 [response to hydroperoxide] GO:0033599 [regulation of mammary gland epithelial cell proliferation] GO:0034599 [cellular response to oxidative stress] GO:0040029 [regulation of gene expression, epigenetic] GO:0042311 [vasodilation] GO:0042542 [response to hydrogen peroxide] GO:0042744 [hydrogen peroxide catabolic process] GO:0043066 [negative regulation of apoptotic process] GO:0043154 [negative regulation of cysteine-type endopeptidase activity involved in apoptotic process] GO:0043403 [skeletal muscle tissue regeneration] GO:0043523 [regulation of neuron apoptotic process] GO:0043534 [blood vessel endothelial cell migration] GO:0045444 [fat cell differentiation] GO:0045454 [cell redox homeostasis] GO:0048741 [skeletal muscle fiber development] GO:0051450 [myoblast proliferation] GO:0051702 [interaction with symbiont] GO:0051897 [positive regulation of protein kinase B signaling] GO:0055114 [oxidation-reduction process] GO:0060047 [heart contraction] GO:0060055 [angiogenesis involved in wound healing] GO:0061136 [regulation of proteasomal protein catabolic process] GO:0070062 [extracellular exosome] GO:0090201 [negative regulation of release of cytochrome c from mitochondria] GO:0097413 [Lewy body] GO:0098869 [cellular oxidant detoxification] GO:1902042 [negative regulation of extrinsic apoptotic signaling pathway via death domain receptors] GO:1902176 [negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway] GO:1902905 [positive regulation of supramolecular fiber organization]
Enzymes ENZYME proteins Oxidoreductases Phobius predicted secreted proteins Predicted intracellular proteins Plasma proteins Cancer-related genes Candidate cancer biomarkers Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000302 [response to reactive oxygen species] GO:0004601 [peroxidase activity] GO:0004602 [glutathione peroxidase activity] GO:0005737 [cytoplasm] GO:0005739 [mitochondrion] GO:0005759 [mitochondrial matrix] GO:0005829 [cytosol] GO:0006195 [purine nucleotide catabolic process] GO:0006749 [glutathione metabolic process] GO:0006979 [response to oxidative stress] GO:0009650 [UV protection] GO:0010269 [response to selenium ion] GO:0016491 [oxidoreductase activity] GO:0017124 [SH3 domain binding] GO:0019372 [lipoxygenase pathway] GO:0033599 [regulation of mammary gland epithelial cell proliferation] GO:0034599 [cellular response to oxidative stress] GO:0040029 [regulation of gene expression, epigenetic] GO:0042542 [response to hydrogen peroxide] GO:0042744 [hydrogen peroxide catabolic process] GO:0043154 [negative regulation of cysteine-type endopeptidase activity involved in apoptotic process] GO:0045454 [cell redox homeostasis] GO:0055114 [oxidation-reduction process] GO:0060047 [heart contraction] GO:0061136 [regulation of proteasomal protein catabolic process] GO:0070062 [extracellular exosome] GO:0090201 [negative regulation of release of cytochrome c from mitochondria] GO:0097413 [Lewy body] GO:0098869 [cellular oxidant detoxification] GO:1902042 [negative regulation of extrinsic apoptotic signaling pathway via death domain receptors] GO:1902905 [positive regulation of supramolecular fiber organization]
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