Single cell type - MPEG1 - 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.	MPEG1
Gene descriptionⁱ Full gene name according to HGNC.	Macrophage expressed 1
Protein classⁱ Assigned HPA protein class(es) for the encoded protein(s). Read more	Disease related genes Human disease related genes Potential drug targets Transporters
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.	Secreted, Membrane
Number of transcriptsⁱ Number of protein-coding transcripts from the gene as defined by Ensembl.	1

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.	Monocytes & Neutrophils - Inflammatory signaling (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 (Kupffer cells, Monocytes, PDCs, Macrophages, CDC, Hofbauer cells, Monocyte progenitors)
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.	0.92
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 (Central nervous system macrophage, Leukocyte)
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.	Group enriched (classical monocyte, non-classical monocyte, intermediate monocyte, plasmacytoid DC, myeloid DC)
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
Extracellular locationⁱ A possible secretion of the protein was predicted based on N-terminal signal sequence (signal peptide) predictions and transmembrane region predictions, and subsequently annotated for its local or systemic secretion based on literature, function, and protein and RNA expression data.	Protein predicted to be secreted

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: Group enriched (Mononuclear phagocytes, Dendritic 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 (Central nervous system macrophage, Leukocyte)

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: Group enriched (classical monocyte, non-classical monocyte, intermediate monocyte, plasmacytoid DC, myeloid DC)
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

MPEG1 is part of cluster 40 Monocytes & Neutrophils - Inflammatory signaling with confidenceⁱ 1
283 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.
RUFY4	RUN and FYVE domain containing 4	0.7970	72
CD33	CD33 molecule	0.7802	40
ADA2	Adenosine deaminase 2	0.7410	40
MS4A6A	Membrane spanning 4-domains A6A	0.7342	72
CTSS	Cathepsin S	0.7231	40
LRRC25	Leucine rich repeat containing 25	0.7124	40
CD1D	CD1d molecule	0.7028	40
GPBAR1	G protein-coupled bile acid receptor 1	0.7014	40
CD300H	CD300H molecule (gene/pseudogene)	0.6936	40
SIGLEC7	Sialic acid binding Ig like lectin 7	0.6800	72
CCR2	C-C motif chemokine receptor 2	0.6616	40
AIF1	Allograft inflammatory factor 1	0.6514	40
HEATR3	HEAT repeat containing 3	0.6417	40
FGL2	Fibrinogen like 2	0.6383	40
SIGLEC12	Sialic acid binding Ig like lectin 12	0.6327	72

IMMUNE CELLS

MPEG1 is part of cluster 10 Non-specific - Membrane trafficking with confidenceⁱ 0.95
408 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.
C11orf71	Chromosome 11 open reading frame 71	0.9762	10
GALK1	Galactokinase 1	0.9762	10
DUSP3	Dual specificity phosphatase 3	0.9762	10
DAP	Death associated protein	0.9762	10
ZEB2	Zinc finger E-box binding homeobox 2	0.9762	10
PTPRE	Protein tyrosine phosphatase receptor type E	0.9762	10
EPHX1	Epoxide hydrolase 1	0.9762	10
U2AF1	U2 small nuclear RNA auxiliary factor 1	0.9762	10
SHTN1	Shootin 1	0.9524	10
GSTP1	Glutathione S-transferase pi 1	0.9524	10
KCTD12	Potassium channel tetramerization domain containing 12	0.9524	2
KCTD19	Potassium channel tetramerization domain containing 19	0.9524	2
CTSB	Cathepsin B	0.9524	10
GHRL	Ghrelin and obestatin prepropeptide	0.9524	2
NAGK	N-acetylglucosamine kinase	0.9524	10