Single cell type - SAP18 - 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.	SAP18
Gene descriptionⁱ Full gene name according to HGNC.	Sin3A associated protein 18
Protein classⁱ Assigned HPA protein class(es) for the encoded protein(s).	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.	Intracellular
Number of transcriptsⁱ Number of protein-coding transcripts from the gene as defined by Ensembl.	6

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.	Non-specific - Transcription (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 (Early spermatids, Oocytes)
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.	0.25
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 (Early spermatids, Oocytes)

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

SAP18 is part of cluster 80 Non-specific - Transcription with confidenceⁱ 1
184 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.
GTF2B	General transcription factor IIB	0.5784	80
DNAJA1	DnaJ heat shock protein family (Hsp40) member A1	0.5549	80
RSRP1	Arginine and serine rich protein 1	0.5241	80
ZNF597	Zinc finger protein 597	0.5173	80
IQCN	IQ motif containing N	0.5145	80
ING1	Inhibitor of growth family member 1	0.5138	80
UBE2S	Ubiquitin conjugating enzyme E2 S	0.5085	80
DDIT3	DNA damage inducible transcript 3	0.5011	80
BRD2	Bromodomain containing 2	0.5006	80
NXF1	Nuclear RNA export factor 1	0.4979	80
H2AX	H2A.X variant histone	0.4973	80
SUGT1	SGT1 homolog, MIS12 kinetochore complex assembly cochaperone	0.4894	15
PPP1R10	Protein phosphatase 1 regulatory subunit 10	0.4880	80
MRPL39	Mitochondrial ribosomal protein L39	0.4855	18
SIRT1	Sirtuin 1	0.4814	21

IMMUNE CELLS

SAP18 is part of cluster 36 Eosinophils - Protein ubiquitination with confidenceⁱ 0.68
179 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.
WDR25	WD repeat domain 25	1.0000	36
ECH1	Enoyl-CoA hydratase 1	0.9762	36
GPI	Glucose-6-phosphate isomerase	0.9762	25
UBE2J2	Ubiquitin conjugating enzyme E2 J2	0.9524	36
HP	Haptoglobin	0.9524	36
SUMO2	Small ubiquitin like modifier 2	0.9524	36
NDUFA13	NADH:ubiquinone oxidoreductase subunit A13	0.9524	36
TSSC4	Tumor suppressing subtransferable candidate 4	0.9524	36
AURKAIP1	Aurora kinase A interacting protein 1	0.9524	36
ZNF524	Zinc finger protein 524	0.9524	36
TSC22D4	TSC22 domain family member 4	0.9524	36
SMIM12	Small integral membrane protein 12	0.9524	36
PSTPIP2	Proline-serine-threonine phosphatase interacting protein 2	0.9524	25
SUFU	SUFU negative regulator of hedgehog signaling	0.9524	36
PSMA2	Proteasome 20S subunit alpha 2	0.9524	36