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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 several tissues, most abundant in skeletal muscle.
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. CAB004573 and HPA011165 may target different isoforms. Annotated protein expression is based on CAB004573.
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
SIRT2 (HGNC Symbol)
Synonyms
SIR2L
Description
Sirtuin 2 (HGNC Symbol)
Entrez gene summary
This gene encodes a member of the sirtuin family of proteins, homologs to the yeast Sir2 protein. Members of the sirtuin family are characterized by a sirtuin core domain and grouped into four classes. The functions of human sirtuins have not yet been determined; however, yeast sirtuin proteins are known to regulate epigenetic gene silencing and suppress recombination of rDNA. Studies suggest that the human sirtuins may function as intracellular regulatory proteins with mono-ADP-ribosyltransferase activity. The protein encoded by this gene is included in class I of the sirtuin family. Several transcript variants are resulted from alternative splicing of this gene. [provided by RefSeq, Jul 2010]
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.
SIRT2-001
SIRT2-002
SIRT2-005
SIRT2-006
SIRT2-007
SIRT2-008
SIRT2-016
SIRT2-201
SIRT2-202
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.
Q8IXJ6 [Direct mapping] NAD-dependent protein deacetylase sirtuin-2
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Predicted intracellular proteins Cancer-related genes Candidate cancer biomarkers Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0000122 [negative regulation of transcription from RNA polymerase II promoter] GO:0000183 [chromatin silencing at rDNA] GO:0000781 [chromosome, telomeric region] GO:0002376 [immune system process] GO:0003682 [chromatin binding] GO:0004407 [histone deacetylase activity] GO:0005515 [protein binding] GO:0005634 [nucleus] GO:0005677 [chromatin silencing complex] GO:0005694 [chromosome] GO:0005720 [nuclear heterochromatin] GO:0005730 [nucleolus] GO:0005737 [cytoplasm] GO:0005739 [mitochondrion] GO:0005813 [centrosome] GO:0005814 [centriole] GO:0005815 [microtubule organizing center] GO:0005819 [spindle] GO:0005829 [cytosol] GO:0005856 [cytoskeleton] GO:0005874 [microtubule] GO:0005886 [plasma membrane] GO:0006342 [chromatin silencing] GO:0006348 [chromatin silencing at telomere] GO:0006351 [transcription, DNA-templated] GO:0006355 [regulation of transcription, DNA-templated] GO:0006471 [protein ADP-ribosylation] GO:0006476 [protein deacetylation] GO:0006914 [autophagy] GO:0007049 [cell cycle] GO:0007067 [mitotic nuclear division] GO:0007096 [regulation of exit from mitosis] GO:0007399 [nervous system development] GO:0008134 [transcription factor binding] GO:0008270 [zinc ion binding] GO:0008285 [negative regulation of cell proliferation] GO:0010507 [negative regulation of autophagy] GO:0010801 [negative regulation of peptidyl-threonine phosphorylation] GO:0014065 [phosphatidylinositol 3-kinase signaling] GO:0016020 [membrane] GO:0016458 [gene silencing] GO:0016575 [histone deacetylation] GO:0016787 [hydrolase activity] GO:0016811 [hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides] GO:0017136 [NAD-dependent histone deacetylase activity] GO:0021762 [substantia nigra development] GO:0022011 [myelination in peripheral nervous system] GO:0030154 [cell differentiation] GO:0030426 [growth cone] GO:0030496 [midbody] GO:0031641 [regulation of myelination] GO:0032436 [positive regulation of proteasomal ubiquitin-dependent protein catabolic process] GO:0033010 [paranodal junction] GO:0033270 [paranode region of axon] GO:0033558 [protein deacetylase activity] GO:0034599 [cellular response to oxidative stress] GO:0034979 [NAD-dependent protein deacetylase activity] GO:0034983 [peptidyl-lysine deacetylation] GO:0035035 [histone acetyltransferase binding] GO:0035729 [cellular response to hepatocyte growth factor stimulus] GO:0042177 [negative regulation of protein catabolic process] GO:0042325 [regulation of phosphorylation] GO:0042826 [histone deacetylase binding] GO:0042903 [tubulin deacetylase activity] GO:0042995 [cell projection] GO:0043130 [ubiquitin binding] GO:0043161 [proteasome-mediated ubiquitin-dependent protein catabolic process] GO:0043204 [perikaryon] GO:0043209 [myelin sheath] GO:0043219 [lateral loop] GO:0043220 [Schmidt-Lanterman incisure] GO:0043388 [positive regulation of DNA binding] GO:0043491 [protein kinase B signaling] GO:0044224 [juxtaparanode region of axon] GO:0044242 [cellular lipid catabolic process] GO:0045087 [innate immune response] GO:0045598 [regulation of fat cell differentiation] GO:0045599 [negative regulation of fat cell differentiation] GO:0045836 [positive regulation of meiotic nuclear division] GO:0045843 [negative regulation of striated muscle tissue development] GO:0045892 [negative regulation of transcription, DNA-templated] GO:0045944 [positive regulation of transcription from RNA polymerase II promoter] GO:0046872 [metal ion binding] GO:0046970 [NAD-dependent histone deacetylase activity (H4-K16 specific)] GO:0048012 [hepatocyte growth factor receptor signaling pathway] GO:0048471 [perinuclear region of cytoplasm] GO:0048487 [beta-tubulin binding] GO:0051287 [NAD binding] GO:0051301 [cell division] GO:0051321 [meiotic cell cycle] GO:0051726 [regulation of cell cycle] GO:0051775 [response to redox state] GO:0051781 [positive regulation of cell division] GO:0051987 [positive regulation of attachment of spindle microtubules to kinetochore] GO:0061428 [negative regulation of transcription from RNA polymerase II promoter in response to hypoxia] GO:0061433 [cellular response to caloric restriction] GO:0070403 [NAD+ binding] GO:0070446 [negative regulation of oligodendrocyte progenitor proliferation] GO:0070932 [histone H3 deacetylation] GO:0070933 [histone H4 deacetylation] GO:0071219 [cellular response to molecule of bacterial origin] GO:0071456 [cellular response to hypoxia] GO:0071872 [cellular response to epinephrine stimulus] GO:0072686 [mitotic spindle] GO:0072687 [meiotic spindle] GO:0090042 [tubulin deacetylation] GO:0097386 [glial cell projection] GO:1900119 [positive regulation of execution phase of apoptosis] GO:1900195 [positive regulation of oocyte maturation] GO:1900226 [negative regulation of NLRP3 inflammasome complex assembly] GO:1900425 [negative regulation of defense response to bacterium] GO:1901026 [ripoptosome assembly involved in necroptotic process] GO:2000378 [negative regulation of reactive oxygen species metabolic process] GO:2000777 [positive regulation of proteasomal ubiquitin-dependent protein catabolic process involved in cellular response to hypoxia]
Q8IXJ6 [Direct mapping] NAD-dependent protein deacetylase sirtuin-2 A0A024R0G8 [Target identity:100%; Query identity:100%] Sirtuin (Silent mating type information regulation 2 homolog) 2 (S. cerevisiae), isoform CRA_a
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Predicted intracellular proteins Cancer-related genes Candidate cancer biomarkers Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0000122 [negative regulation of transcription from RNA polymerase II promoter] GO:0000183 [chromatin silencing at rDNA] GO:0000781 [chromosome, telomeric region] GO:0002376 [immune system process] GO:0003682 [chromatin binding] GO:0004407 [histone deacetylase activity] GO:0005515 [protein binding] GO:0005634 [nucleus] GO:0005677 [chromatin silencing complex] GO:0005694 [chromosome] GO:0005720 [nuclear heterochromatin] GO:0005730 [nucleolus] GO:0005737 [cytoplasm] GO:0005813 [centrosome] GO:0005814 [centriole] GO:0005815 [microtubule organizing center] GO:0005819 [spindle] GO:0005829 [cytosol] GO:0005856 [cytoskeleton] GO:0005874 [microtubule] GO:0005886 [plasma membrane] GO:0006342 [chromatin silencing] GO:0006348 [chromatin silencing at telomere] GO:0006351 [transcription, DNA-templated] GO:0006355 [regulation of transcription, DNA-templated] GO:0006471 [protein ADP-ribosylation] GO:0006476 [protein deacetylation] GO:0006914 [autophagy] GO:0007049 [cell cycle] GO:0007067 [mitotic nuclear division] GO:0007096 [regulation of exit from mitosis] GO:0007399 [nervous system development] GO:0008134 [transcription factor binding] GO:0008270 [zinc ion binding] GO:0008285 [negative regulation of cell proliferation] GO:0010507 [negative regulation of autophagy] GO:0010801 [negative regulation of peptidyl-threonine phosphorylation] GO:0014065 [phosphatidylinositol 3-kinase signaling] GO:0016020 [membrane] GO:0016458 [gene silencing] GO:0016575 [histone deacetylation] GO:0016787 [hydrolase activity] GO:0016811 [hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides] GO:0017136 [NAD-dependent histone deacetylase activity] GO:0021762 [substantia nigra development] GO:0022011 [myelination in peripheral nervous system] GO:0030154 [cell differentiation] GO:0030426 [growth cone] GO:0030496 [midbody] GO:0031641 [regulation of myelination] GO:0032436 [positive regulation of proteasomal ubiquitin-dependent protein catabolic process] GO:0033010 [paranodal junction] GO:0033270 [paranode region of axon] GO:0033558 [protein deacetylase activity] GO:0034599 [cellular response to oxidative stress] GO:0034979 [NAD-dependent protein deacetylase activity] GO:0034983 [peptidyl-lysine deacetylation] GO:0035035 [histone acetyltransferase binding] GO:0035729 [cellular response to hepatocyte growth factor stimulus] GO:0042177 [negative regulation of protein catabolic process] GO:0042325 [regulation of phosphorylation] GO:0042826 [histone deacetylase binding] GO:0042903 [tubulin deacetylase activity] GO:0042995 [cell projection] GO:0043130 [ubiquitin binding] GO:0043161 [proteasome-mediated ubiquitin-dependent protein catabolic process] GO:0043204 [perikaryon] GO:0043209 [myelin sheath] GO:0043219 [lateral loop] GO:0043220 [Schmidt-Lanterman incisure] GO:0043388 [positive regulation of DNA binding] GO:0043491 [protein kinase B signaling] GO:0044224 [juxtaparanode region of axon] GO:0044242 [cellular lipid catabolic process] GO:0045087 [innate immune response] GO:0045599 [negative regulation of fat cell differentiation] GO:0045836 [positive regulation of meiotic nuclear division] GO:0045843 [negative regulation of striated muscle tissue development] GO:0045892 [negative regulation of transcription, DNA-templated] GO:0045944 [positive regulation of transcription from RNA polymerase II promoter] GO:0046872 [metal ion binding] GO:0046970 [NAD-dependent histone deacetylase activity (H4-K16 specific)] GO:0048012 [hepatocyte growth factor receptor signaling pathway] GO:0048471 [perinuclear region of cytoplasm] GO:0051287 [NAD binding] GO:0051301 [cell division] GO:0051321 [meiotic cell cycle] GO:0051726 [regulation of cell cycle] GO:0051775 [response to redox state] GO:0051781 [positive regulation of cell division] GO:0051987 [positive regulation of attachment of spindle microtubules to kinetochore] GO:0061428 [negative regulation of transcription from RNA polymerase II promoter in response to hypoxia] GO:0061433 [cellular response to caloric restriction] GO:0070403 [NAD+ binding] GO:0070446 [negative regulation of oligodendrocyte progenitor proliferation] GO:0070932 [histone H3 deacetylation] GO:0070933 [histone H4 deacetylation] GO:0071219 [cellular response to molecule of bacterial origin] GO:0071456 [cellular response to hypoxia] GO:0071872 [cellular response to epinephrine stimulus] GO:0072686 [mitotic spindle] GO:0072687 [meiotic spindle] GO:0090042 [tubulin deacetylation] GO:0097386 [glial cell projection] GO:1900119 [positive regulation of execution phase of apoptosis] GO:1900195 [positive regulation of oocyte maturation] GO:1900425 [negative regulation of defense response to bacterium] GO:2000378 [negative regulation of reactive oxygen species metabolic process] GO:2000777 [positive regulation of proteasomal ubiquitin-dependent protein catabolic process involved in cellular response to hypoxia]