Single cell type - ISG20 - The Human Protein Atlas

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.	ISG20
Gene descriptionⁱ Full gene name according to HGNC.	Interferon stimulated exonuclease gene 20
Protein classⁱ Assigned HPA protein class(es) for the encoded protein(s). Read more	Enzymes
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.	Intracellular
Number of transcriptsⁱ Number of protein-coding transcripts from the gene as defined by Ensembl.	4

HUMAN PROTEIN ATLAS INFORMATIONⁱ Summary of RNA expression and protein localization based on data generated within the Human Protein Atlas project.
Single cell type expression clusterⁱ The RNA data was used to cluster genes according to their expression across single cell types. Clusters contain genes that have similar expression patterns, and each cluster has been manually annotated to describe common features in terms of function and specificity.	Plasma cells - Antibody production & secretion (mainly)
Single cell type specificityⁱ The RNA specificity category is based on mRNA expression levels in the analyzed cell types based on scRNA-seq data from normal tissues. The categories include: cell type enriched, group enriched, cell type enhanced, low cell type specificity and not detected.	Cell type enhanced (Plasma cells, Esophageal apical cells, Endometrial ciliated cells, B-cells, T-cells, NK-cells, Endometrial glandular cells, Endometrial luminal cells, Neutrophils)
Tau specificity scoreⁱ Tau specificity score is a numerical indicator of the specificity of the gene expression across cells or tissues. The value ranges from 0 and 1, where 0 indicates identical expression across all cells/tissue types, while 1 indicates expression in a single cell/tissue type.	0.58
Brain cluster specificityⁱ The RNA specificity category is based on mRNA expression levels in the analyzed cell cluster types based on snRNA-seq data from brain samples. The categories include: cell type enriched, group enriched, cell type enhanced, low cell type specificity and not detected. "cell type" refer to one of the 34 cluster names used to summarize the 2.5 million cells included in the brain cell representation.	Group enriched (Leukocyte, Endothelial cell)
Immune cell specificityⁱ The RNA specificity category is based on mRNA expression levels in the analyzed samples based on data from HPA. The categories include: cell type enriched, group enriched, cell type enhanced, low cell type specificity and not detected.	Low immune cell specificity
Protein evidenceⁱ Evidence score for genes based on UniProt protein existence (UniProt evidence); neXtProt protein existence (neXtProt evidence);and a Human Protein Atlas antibody- or RNA based score (HPA evidence). The avaliable scores are evidence at protein level, evidence at transcript level, no evidence, or not avaliable.	Evidence at protein level

ASSAYSⁱ

Single cell type

Cell type enrichment

Single nuclei - Brain

Immune cells

Expression clustering

SINGLE CELL TYPESⁱ A summary of normalized single cell RNA (nCPM) from all single cell types. Color-coding is based on cell type groups, each consisting of cell types with functional features in common. * Single nuclei Read more
Single cell type groups RNA single cell type group specificity: Cell type enhanced (Plasma cells, Apical squamous epithelial cells)

TISSUE CELL TYPEⁱ The tissue cell type section provides a cell type specificity prediction for all protein coding genes. More information on the data available can be found here and a description of the analysis here.
	Core cell typesⁱ The core cell type table displays data for a panel of eight cell types that are found in many tissues. Colored dots indicate that the selected gene has core cell type specificity in the indicated tissue. Grey dots indicate that cell type is present within that tissue, but the selected gene is not predicted to be enriched there. Category Alphabetical Enrichment Tissue specific cell typesⁱ This plot shows the enrichment score of the selected gene in all non-core cell types found within the profiled tissues, allowing comparisons between different cell types within different tissues. An enlarged symbol indicates classification of the gene as cell type enriched in the corresponding cell type.

SINGLE NUCLEI BRAINⁱ

Single nuclei cluster types

RNA brain cluster specificity: Group enriched (Leukocyte, Endothelial cell)

IMMUNE CELL TYPE EXPRESSION (RNA)ⁱ Blood cell type expression overview shows RNA-seq data from three different sources: Internally generated Human Protein Atlas HPA data, as well as data generated by Monaco et al and Schmiedel et al). Color-coding is based on blood cell type lineages, including B-cells, T-cells, NK-cells, monocytes, granulocytes and dendritic cells as well as total PBMC. To access sample data, click on tissue name or bar.
HPA datasetⁱ The resulting transcript expression values calculated as nTPM, resulting from the internal normalization pipeline for 18 immune cell types and total peripheral blood mononuclear cells (PBMC). Lineage Expression Alphabetical Immune cell type specificity: Low immune cell specificity
Monaco datasetⁱ The transcript expression values (nTPM) resulting from the internal normalization pipeline are visualized for 29 blood cell types and total peripheral blood mononuclear cells (PBMC) from Monaco et al. Lineage Expression Alphabetical
Schmiedel datasetⁱ Transcript Per Million (TPM) values are visualized for 15 blood cell types from the Schmiedel et al. dataset. Lineage Expression Alphabetical

EXPRESSION CLUSTERING & CORRELATIONⁱ

SINGLE CELL TYPE

ISG20 is part of cluster 44 Plasma cells - Antibody production & secretion with confidenceⁱ 1
129 genes in cluster

Go to interactive expression cluster page

15 nearest neighbours based on single cell RNA expression

Neighbourⁱ Gene name according to HGNC.	Descriptionⁱ Gene description according to HGNC.	Correlationⁱ Correlation between the selected gene and neighboring gene. Correlation is calculated as Spearman correlation in PCA space based on the RNA-seq expression data.	Clusterⁱ ID of the expression cluster of the neighboring gene.
ATG5	Autophagy related 5	0.6233	67
ZBP1	Z-DNA binding protein 1	0.6189	44
PRDM1	PR/SET domain 1	0.6107	67
IGLV3-12	Immunoglobulin lambda variable 3-12	0.5718	44
IGLV3-21	Immunoglobulin lambda variable 3-21	0.5547	44
IGKV3D-11	Immunoglobulin kappa variable 3D-11	0.5394	44
NUGGC	Nuclear GTPase, germinal center associated	0.5387	44
IGHD	Immunoglobulin heavy constant delta	0.5316	44
IGKV2D-30	Immunoglobulin kappa variable 2D-30	0.5270	44
IGHV2-70	Immunoglobulin heavy variable 2-70	0.5177	44
IGLV1-47	Immunoglobulin lambda variable 1-47	0.5155	44
IGKV1OR2-108	Immunoglobulin kappa variable 1/OR2-108 (non-functional)	0.5107	44
DERL1	Derlin 1	0.5093	44
IGHV3-74	Immunoglobulin heavy variable 3-74	0.5071	44
IGKV1D-17	Immunoglobulin kappa variable 1D-17	0.5065	44

IMMUNE CELLS

ISG20 is part of cluster 43 Non-specific - Transcription & Translation with confidenceⁱ 0.96
433 genes in cluster

Go to interactive expression cluster page

15 nearest neighbours based on single cell RNA expression

Neighbourⁱ Gene name according to HGNC.	Descriptionⁱ Gene description according to HGNC.	Correlationⁱ Correlation between the selected gene and neighboring gene. Correlation is calculated as Spearman correlation in PCA space based on the RNA-seq expression data.	Clusterⁱ ID of the expression cluster of the neighboring gene.
GARRE1	Granule associated Rac and RHOG effector 1	0.9762	43
ZNF821	Zinc finger protein 821	0.9762	43
TIFA	TRAF interacting protein with forkhead associated domain	0.9762	43
APBA3	Amyloid beta precursor protein binding family A member 3	0.9524	43
ZBTB40	Zinc finger and BTB domain containing 40	0.9524	43
FBXO44	F-box protein 44	0.9524	43
H2BC10	H2B clustered histone 10	0.9286	43
H2BC7	H2B clustered histone 7	0.9286	43
R3HDM2	R3H domain containing 2	0.9286	43
CENPH	Centromere protein H	0.9286	43
HOOK2	Hook microtubule tethering protein 2	0.9286	43
FDFT1	Farnesyl-diphosphate farnesyltransferase 1	0.9286	43
ATG14	Autophagy related 14	0.9048	43
NAF1	Nuclear assembly factor 1 ribonucleoprotein	0.9048	43
SESN3	Sestrin 3	0.9048	16