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TOP3B
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  • TOP3B
PROTEIN STRUCTURE
ANTIBODIES
AND
VALIDATION
Protein structures
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

TOP3B
Synonyms
Gene descriptioni

Full gene name according to HGNC.

DNA topoisomerase III beta
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Read more
Enzymes
Plasma proteins
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Read more
Intracellular
Protein evidence Evidence at protein level (all genes)
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.

Chromosome 22
Cytoband q11.22
Chromosome location (bp) 21957025 - 21982813
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

11
Ensembl ENSG00000100038 (version 103.38)
Entrez gene 8940
HGNC HGNC:11993
UniProt O95985 (UniProt - Evidence at protein level)
neXtProt NX_O95985
Antibodypedia TOP3B antibodies


PROTEIN STRUCTUREi

The Structure section provides predicted structures from the Alphafold protein structure database and available experimental structures from Protein Data Bank (PDB).

In the Structure drop-down menu all experimental structures from PDB are available for selection and display. The structures are displayed using the NGL Viewer and can be zoomed-in and rotated either manually or by checking the Autorotate box. The Color scheme can be selected to show the residue index, chain name or confidence score (as B-factors and pLDDT score for experimental and predicted structures, respectively). The positions for available antigen sequences in the structure are shown if Antigens is turned to ON, and the Variants slider can be used to show the positions of clinical and population variants.https://github.com/nglviewer/ngl

Read more

Predicted


Description: Structure prediction from Alphafold project. Structure version 2

# Chains: 1      # Clinical variants: 0      # Population variants: 483

Antigens:

Off
On

Variants:

Off
Clinical
Population

Color scheme:

Confidence
Residue index
Chain name

Autorotate:

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On



PROTEIN BROWSERi

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.

Below 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.
«
TOP3B-201
TOP3B-202
TOP3B-203
TOP3B-204
TOP3B-205
TOP3B-207
TOP3B-208
TOP3B-209
TOP3B-211
TOP3B-212
TOP3B-214
»


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.
Splice variant UniProt Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
TOP3B-201
ENSP00000349705
ENST00000357179
O95985 [Direct mapping]
DNA topoisomerase 3-beta-1
A0A024R1C2 [Target identity:100%; Query identity:100%]
DNA topoisomerase
Show all
Enzymes
   ENZYME proteins
   Isomerase
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003723 [RNA binding]
GO:0003916 [DNA topoisomerase activity]
GO:0003917 [DNA topoisomerase type I (single strand cut, ATP-independent) activity]
GO:0005515 [protein binding]
GO:0005634 [nucleus]
GO:0006265 [DNA topological change]
GO:0016853 [isomerase activity]
Show all
862 aa
96.7 kDa
No 0
TOP3B-202
ENSP00000381773
ENST00000398793
O95985 [Direct mapping]
DNA topoisomerase 3-beta-1
A0A024R1C2 [Target identity:100%; Query identity:100%]
DNA topoisomerase
Show all
Enzymes
   ENZYME proteins
   Isomerase
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000793 [condensed chromosome]
GO:0003677 [DNA binding]
GO:0003723 [RNA binding]
GO:0003916 [DNA topoisomerase activity]
GO:0003917 [DNA topoisomerase type I (single strand cut, ATP-independent) activity]
GO:0005515 [protein binding]
GO:0005634 [nucleus]
GO:0006265 [DNA topological change]
GO:0007059 [chromosome segregation]
GO:0016853 [isomerase activity]
Show all
862 aa
96.7 kDa
No 0
TOP3B-203
ENSP00000390977
ENST00000424393
C9JEI7 [Direct mapping]
DNA topoisomerase
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003916 [DNA topoisomerase activity]
GO:0003917 [DNA topoisomerase type I (single strand cut, ATP-independent) activity]
GO:0006265 [DNA topological change]
GO:0016853 [isomerase activity]
Show all
246 aa
27.4 kDa
No 0
TOP3B-204
ENSP00000414538
ENST00000430142
C9JKE2 [Direct mapping]
DNA topoisomerase
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003916 [DNA topoisomerase activity]
GO:0003917 [DNA topoisomerase type I (single strand cut, ATP-independent) activity]
GO:0006265 [DNA topological change]
GO:0016853 [isomerase activity]
Show all
121 aa
13.4 kDa
No 0
TOP3B-205
ENSP00000390824
ENST00000434517
C9JF56 [Direct mapping]
DNA topoisomerase 3-beta-1
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
21 aa
2.3 kDa
No 0
TOP3B-207
ENSP00000387554
ENST00000437103
C9JTQ7 [Direct mapping]
DNA topoisomerase 3-beta-1
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
42 aa
4.4 kDa
No 0
TOP3B-208
ENSP00000402622
ENST00000437929
C9JT00 [Direct mapping]
DNA topoisomerase
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003916 [DNA topoisomerase activity]
GO:0003917 [DNA topoisomerase type I (single strand cut, ATP-independent) activity]
GO:0006265 [DNA topological change]
GO:0016853 [isomerase activity]
Show all
122 aa
13.5 kDa
No 0
TOP3B-209
ENSP00000390209
ENST00000442653
C9JHR0 [Direct mapping]
DNA topoisomerase
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003916 [DNA topoisomerase activity]
GO:0003917 [DNA topoisomerase type I (single strand cut, ATP-independent) activity]
GO:0006265 [DNA topological change]
GO:0016853 [isomerase activity]
Show all
46 aa
4.8 kDa
No 0
TOP3B-211
ENSP00000404600
ENST00000449704
C9JEQ1 [Direct mapping]
DNA topoisomerase
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003916 [DNA topoisomerase activity]
GO:0003917 [DNA topoisomerase type I (single strand cut, ATP-independent) activity]
GO:0006265 [DNA topological change]
GO:0016853 [isomerase activity]
Show all
60 aa
6.3 kDa
No 0
TOP3B-212
ENSP00000391857
ENST00000456075
C9J9X4 [Direct mapping]
DNA topoisomerase
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003916 [DNA topoisomerase activity]
GO:0003917 [DNA topoisomerase type I (single strand cut, ATP-independent) activity]
GO:0006265 [DNA topological change]
GO:0016853 [isomerase activity]
Show all
61 aa
6.4 kDa
No 0
TOP3B-214
ENSP00000408282
ENST00000457270
H0Y6W0 [Direct mapping]
DNA topoisomerase
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003916 [DNA topoisomerase activity]
GO:0003917 [DNA topoisomerase type I (single strand cut, ATP-independent) activity]
GO:0006265 [DNA topological change]
GO:0016853 [isomerase activity]
Show all
525 aa
59.3 kDa
No 0

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The Human Protein Atlas

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The Human Protein Atlas project is funded
by the Knut & Alice Wallenberg Foundation.