Single cell type - ACTR2 - 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.	ACTR2
Gene descriptionⁱ Full gene name according to HGNC.	Actin related protein 2
Protein classⁱ Assigned HPA protein class(es) for the encoded protein(s).	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.	Intracellular
Number of transcriptsⁱ Number of protein-coding transcripts from the gene as defined by Ensembl.	2

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.	Neutrophils - Degranulation (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 (Monocytes)
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.	0.30
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.	Low cell type specificity
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 (nTPM) from all single cell types. Color-coding is based on cell type groups, each consisting of cell types with functional features in common.
Single cell types RNA single cell type specificity: Cell type enhanced (Monocytes)

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: Low cell type specificity

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

ACTR2 is part of cluster 74 Neutrophils - Degranulation with confidenceⁱ 1
174 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.
PTBP3	Polypyrimidine tract binding protein 3	0.6237	74
LCP1	Lymphocyte cytosolic protein 1	0.6174	74
ROCK1	Rho associated coiled-coil containing protein kinase 1	0.5691	32
ACTR3	Actin related protein 3	0.5677	14
IQGAP1	IQ motif containing GTPase activating protein 1	0.5642	74
APAF1	Apoptotic peptidase activating factor 1	0.5601	28
MXD1	MAX dimerization protein 1	0.5518	29
RNF149	Ring finger protein 149	0.5439	74
FPR1	Formyl peptide receptor 1	0.5404	74
ANP32A	Acidic nuclear phosphoprotein 32 family member A	0.5331	74
CLEC4D	C-type lectin domain family 4 member D	0.5321	74
VNN2	Vanin 2	0.5316	74
TLR6	Toll like receptor 6	0.5210	74
PFKFB3	6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3	0.5194	29
DEFA3	Defensin alpha 3	0.5123	74

IMMUNE CELLS

ACTR2 is part of cluster 41 Basophils - Unknown function with confidenceⁱ 0.73
293 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.
MRPL33	Mitochondrial ribosomal protein L33	1.0000	41
SDF2	Stromal cell derived factor 2	1.0000	41
EMILIN2	Elastin microfibril interfacer 2	1.0000	41
POLR2C	RNA polymerase II subunit C	1.0000	41
CCR2	C-C motif chemokine receptor 2	0.9762	41
NXNL2	Nucleoredoxin like 2	0.9762	41
AUNIP	Aurora kinase A and ninein interacting protein	0.9762	41
STAMBP	STAM binding protein	0.9762	42
SLC36A1	Solute carrier family 36 member 1	0.9762	41
NFE2	Nuclear factor, erythroid 2	0.9762	41
ACO1	Aconitase 1	0.9762	41
ITGA2B	Integrin subunit alpha 2b	0.9762	41
RSRP1	Arginine and serine rich protein 1	0.9762	41
LGALS8	Galectin 8	0.9762	42
MAPK14	Mitogen-activated protein kinase 14	0.9762	41