Single cell type - CLDN1 - 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.	CLDN1
Gene descriptionⁱ Full gene name according to HGNC.	Claudin 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. Read more	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. Read more	Epithelial cell types - Mixed function (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. Read more	Cell type enhanced (Suprabasal keratinocytes, Urothelial cells, Prostatic glandular cells, Basal keratinocytes, Squamous epithelial cells, Basal prostatic cells)
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. Read more	Not detected in immune cells
Immune cell distributionⁱ The RNA distribution category is based on mRNA expression levels in the analyzed samples based on data from HPA. The categories include: detected in all, detected in many, detected in some, detected in single and not detected. Read more	Not detected
Cell line specificityⁱ RNA specificity category based on RNA sequencing data from all cell lines in the Human Protein Atlas. Genes are classified into six different categories (enriched, group enriched, enhanced, low specificity and not detected) according to their RNA expression levels across the panel of cell lines. Read more	Group enriched (EFO-21, HaCaT, hTCEpi, RPTEC TERT1, RT4)
Cell line distributionⁱ RNA distribution category based on RNA sequencing data from all cell lines in the Human Protein Atlas. Genes are classified into five different categories (detected in all, detected in many, detected in some, detected in single and not detected) according to their pattern of detected RNA expression across the panel of cell lines. Read more	Detected in many
Protein evidenceⁱ Evidence score for genes based on UniProt protein existence (UniProt evidence); a Human Protein Atlas antibody- or RNA based score (HPA evidence); and evidence based on PeptideAtlas (MS evidence). The avaliable scores are evidence at protein level, evidence at transcript level, no evidence, or not avaliable. Read more	Evidence at protein level

SINGLE CELL TYPESⁱ A summary of 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 Group Expression Alphabetical RNA single cell type specificity: Cell type enhanced (Suprabasal keratinocytes, Urothelial cells, Prostatic glandular cells, Basal keratinocytes, Squamous epithelial cells, Basal prostatic cells)

SINGLE CELL TISSUES OVERVIEWⁱ An overview of all tissues where single cell type expression has been analyzed. Each tissue name and corresponding UMAP plot is clickable and redirects to the selected tissue.
Adipose tissue Bone marrow Brain Breast Bronchus Colon Endometrium Esophagus Eye Heart muscle Kidney Liver Lung Lymph node Ovary Pancreas Placenta Prostate Rectum Skeletal muscle Skin Small intestine Spleen Stomach Testis

EXPRESSION CLUSTERING & CORRELATIONⁱ

CLDN1 is part of cluster 22 Epithelial cell types - Mixed function with confidenceⁱ 1
298 genes in cluster

Go to interactive expression cluster page

15 nearest neighbours based on single cell type 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. Read more	Clusterⁱ ID of the expression cluster of the neighboring gene. Read more
GJB3	Gap junction protein beta 3	0.8642	22
KRT16	Keratin 16	0.8272	28
RAET1L	Retinoic acid early transcript 1L	0.8071	22
FOSL1	FOS like 1, AP-1 transcription factor subunit	0.8065	22
IRF6	Interferon regulatory factor 6	0.8012	22
KLC3	Kinesin light chain 3	0.7945	28
MPZL2	Myelin protein zero like 2	0.7817	22
SERPINB5	Serpin family B member 5	0.7670	61
WNT7B	Wnt family member 7B	0.7538	22
PRRG4	Proline rich and Gla domain 4	0.7417	22
AQP3	Aquaporin 3 (Gill blood group)	0.7353	22
FAM83B	Family with sequence similarity 83 member B	0.7283	22
UBR4	Ubiquitin protein ligase E3 component n-recognin 4	0.7193	22
SFN	Stratifin	0.7186	28
GJB5	Gap junction protein beta 5	0.7132	61

SINGLE CELL TISSUESⁱ Single cell RNA levels of annotated cell type clusters are shown separately for each analyzed tissue. For easier navigation across tissues, use the above Single cell tissue overview, where each tissue name and UMAP plot is clickable and redirects to the selected tissue, alternatively the grey browser on the left side of the window. Barchart shows nTPM levels in each annotated cluster of single cells. To the left, a UMAP plot illustrates the RNA expression profile. The tissue name and plots are clickable and redirect to a more detailed interactive page. Color-coding is based on cell type groups, each consisting of cell types with functional features in common. Please note that the same cell type may be found in several clusters.
Cluster Expression Alphabetical Adipose tissue
Cluster Expression Alphabetical Bone marrow
Cluster Expression Alphabetical Brain
Cluster Expression Alphabetical Breast
Cluster Expression Alphabetical Bronchus
Cluster Expression Alphabetical Colon
Cluster Expression Alphabetical Endometrium
Cluster Expression Alphabetical Esophagus
Cluster Expression Alphabetical Eye
Cluster Expression Alphabetical Heart muscle
Cluster Expression Alphabetical Kidney
Cluster Expression Alphabetical Liver
Cluster Expression Alphabetical Lung
Cluster Expression Alphabetical Lymph node
Cluster Expression Alphabetical Ovary
Cluster Expression Alphabetical Pancreas
Cluster Expression Alphabetical Placenta
Cluster Expression Alphabetical Prostate
Cluster Expression Alphabetical Rectum
Cluster Expression Alphabetical Skeletal muscle
Cluster Expression Alphabetical Skin
Cluster Expression Alphabetical Small intestine
Cluster Expression Alphabetical Spleen
Cluster Expression Alphabetical Stomach
Cluster Expression Alphabetical Testis

BLOODⁱ

Single cell data

Cluster

Expression

Alphabetical

PBMC

Flow sorted data

Lineage

Expression

Alphabetical

CELL LINESⁱ

Organ

Expression

Alphabetical

Adipocytes	0.4 nTPM
Breast	0.7 nTPM
Adipose tissue	0.0 nTPM

Alveolar cells type 1	12.8 nTPM
Lung	12.8 nTPM

Alveolar cells type 2	34.7 nTPM
Lung	34.7 nTPM

Astrocytes	0.0 nTPM
Brain	0.0 nTPM

B-cells	0.5 nTPM
Liver	3.3 nTPM
Breast	1.3 nTPM
Colon	0.0 nTPM
Kidney	0.0 nTPM
PBMC	0.0 nTPM
Adipose tissue	0.0 nTPM
Lymph node	0.0 nTPM
Bone marrow	0.0 nTPM
Spleen	0.0 nTPM
Stomach	0.0 nTPM

Dendritic cells	0.6 nTPM
Breast	1.8 nTPM
PBMC	0.0 nTPM
Adipose tissue	0.0 nTPM

Endothelial cells	7.0 nTPM
Prostate	45.9 nTPM
Skin	28.1 nTPM
Breast	11.1 nTPM
Endometrium	4.2 nTPM
Lung	3.1 nTPM
Esophagus	2.1 nTPM
Placenta	1.1 nTPM
Liver	0.9 nTPM
Testis	0.9 nTPM
Heart muscle	0.5 nTPM
Ovary	0.2 nTPM
Skeletal muscle	0.1 nTPM
Eye	0.0 nTPM
Pancreas	0.0 nTPM

Fibroblasts	29.2 nTPM
Lung	126.3 nTPM
Ovary	96.5 nTPM
Prostate	42.8 nTPM
Skin	23.0 nTPM
Heart muscle	11.6 nTPM
Breast	9.1 nTPM
Esophagus	7.7 nTPM
Placenta	2.3 nTPM
Skeletal muscle	1.6 nTPM
Adipose tissue	0.3 nTPM
Stomach	0.0 nTPM

Intestinal goblet cells	0.3 nTPM
Rectum	0.5 nTPM
Small intestine	0.4 nTPM
Colon	0.0 nTPM

Macrophages	8.5 nTPM
Breast	33.0 nTPM
Prostate	24.1 nTPM
Lung	19.6 nTPM
Stomach	14.7 nTPM
Endometrium	12.7 nTPM
Esophagus	12.6 nTPM
Testis	5.2 nTPM
Pancreas	5.1 nTPM
Kidney	0.8 nTPM
Skeletal muscle	0.2 nTPM
Adipose tissue	0.1 nTPM
PBMC	0.0 nTPM
Ovary	0.0 nTPM
Bone marrow	0.0 nTPM
Spleen	0.0 nTPM

Paneth cells	0.0 nTPM
Colon	0.0 nTPM
Small intestine	0.0 nTPM
Rectum	0.0 nTPM

Plasma cells	0.0 nTPM
Adipose tissue	0.0 nTPM
Esophagus	0.0 nTPM
Bone marrow	0.0 nTPM
Spleen	0.0 nTPM
Stomach	0.0 nTPM

Respiratory ciliated cells	144.6 nTPM
Lung	212.8 nTPM
Bronchus	76.3 nTPM

Smooth muscle cells	11.2 nTPM
Bronchus	41.5 nTPM
Prostate	40.9 nTPM
Skin	14.0 nTPM
Pancreas	8.1 nTPM
Esophagus	7.8 nTPM
Endometrium	6.4 nTPM
Ovary	2.5 nTPM
Breast	0.8 nTPM
Adipose tissue	0.4 nTPM
Heart muscle	0.3 nTPM
Skeletal muscle	0.2 nTPM

T-cells	2.6 nTPM
Prostate	19.0 nTPM
Skin	11.9 nTPM
Endometrium	7.7 nTPM
Breast	2.5 nTPM
Liver	2.3 nTPM
Kidney	0.7 nTPM
Colon	0.5 nTPM
Adipose tissue	0.2 nTPM
Stomach	0.1 nTPM
Lung	0.0 nTPM
PBMC	0.0 nTPM
Skeletal muscle	0.0 nTPM
Ovary	0.0 nTPM
Esophagus	0.0 nTPM
Lymph node	0.0 nTPM
Bone marrow	0.0 nTPM
Spleen	0.0 nTPM

Cholangiocytes	170.1 nTPM
Liver	170.1 nTPM

Collecting duct cells	31.3 nTPM
Kidney	31.3 nTPM

Cytotrophoblasts	2.4 nTPM
Placenta	2.4 nTPM

Endometrial stromal cells	10.0 nTPM
Endometrium	10.0 nTPM

Undifferentiated cells	1.0 nTPM
Colon	2.2 nTPM
Small intestine	0.5 nTPM
Rectum	0.2 nTPM

Adipose tissue

Bone marrow

Brain

Breast

Bronchus

Colon

Endometrium

Esophagus

Eye

Heart muscle

Kidney

Liver

Lung

Lymph node

Ovary

Pancreas

Placenta

Prostate

Rectum

Skeletal muscle

Skin

Small intestine

Spleen

Stomach

Testis

PBMC