CCR7
C-C chemokine receptor type 7
Also known as: BLR2, CCR7_HUMAN, CD197, CDw197, CMKBR7, EBI1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P32248
- Gene
- CCR7
- Ensembl
- ENSG00000126353
- Chromosome
- 17
- Canonical length
- 378 aa
- Protein class
- Cancer-related genes, CD markers, G-protein coupled receptors, Predicted membrane proteins
- Subcellular location
- Mitochondria
OverviewNCBI Gene
The protein encoded by this gene is a member of the G protein-coupled receptor family. This receptor was identified as a gene induced by the Epstein-Barr virus (EBV), and is thought to be a mediator of EBV effects on B lymphocytes. This receptor is expressed in various lymphoid tissues and activates B and T lymphocytes. It has been shown to control the migration of memory T cells to inflamed tissues, as well as stimulate dendritic cell maturation. The chemokine (C-C motif) ligand 19 (CCL19/ECL) has been reported to be a specific ligand of this receptor. Signals mediated by this receptor regulate T cell homeostasis in lymph nodes, and may also function in the activation and polarization of T cells, and in chronic inflammation pathogenesis. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Sep 2014]
Canonical amino-acid sequenceUniProt
378 residues, UniProt reviewed canonical sequence.
>P32248|CCR7
1 MDLGKPMKSV LVVALLVIFQ VCLCQDEVTD DYIGDNTTVD YTLFESLCSK KDVRNFKAWF
61 LPIMYSIICF VGLLGNGLVV LTYIYFKRLK TMTDTYLLNL AVADILFLLT LPFWAYSAAK
121 SWVFGVHFCK LIFAIYKMSF FSGMLLLLCI SIDRYVAIVQ AVSAHRHRAR VLLISKLSCV
181 GIWILATVLS IPELLYSDLQ RSSSEQAMRC SLITEHVEAF ITIQVAQMVI GFLVPLLAMS
241 FCYLVIIRTL LQARNFERNK AIKVIIAVVV VFIVFQLPYN GVVLAQTVAN FNITSSTCEL
301 SKQLNIAYDV TYSLACVRCC VNPFLYAFIG VKFRNDLFKL FKDLGCLSQE QLRQWSSCRH
361 IRRSSMSVEA ETTTTFSPLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CCR7 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 7
- Mean surface accessibility (rSASA)
- 0.33
- Highest tissue expression
- 79 nTPM
Expression across tissuesHPA
Tissue
- lymph node: 79 nTPM
- tonsil: 78 nTPM
- appendix: 63 nTPM
- thymus: 55 nTPM
- spleen: 27 nTPM
- small intestine: 20 nTPM
Single-cell type
- syncytiotrophoblasts: 576 nCPM
- cdc: 228 nCPM
- cytotrophoblasts: 165 nCPM
- migrating cytotrophoblasts: 143 nCPM
- b-cells: 116 nCPM
- t-cells: 47 nCPM
Immune cell
- naive CD4 T-cell: 4,612 nTPM
- total PBMC: 2,492 nTPM
- naive CD8 T-cell: 2,470 nTPM
- naive B-cell: 1,127 nTPM
- memory CD4 T-cell: 999 nTPM
- NK-cell: 973 nTPM
Brain region
- white matter: 2.5 nTPM
- choroid plexus: 2.1 nTPM
- cerebral cortex: 1.6 nTPM
- basal ganglia: 1.5 nTPM
- pons: 1.4 nTPM
- thalamus: 1.4 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CCR7.
Disease | ImmuneIEDB
Conditions an epitope on CCR7 was assayed in.
- Lyme disease T cell
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.78
- gnomAD pLI
- 0.06
- gnomAD missense Z
- 2.18
- DepMap mean gene effect
- -0.12
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- calcium-mediated signaling
- CCL19-activated CCR7 signaling pathway
- CCL21-activated CCR7 signaling pathway
- cell chemotaxis
- cellular response to cytokine stimulus
- cellular response to prostaglandin E stimulus
- dendritic cell chemotaxis
- establishment of T cell polarity
- G protein-coupled receptor signaling pathway
- homeostasis of number of cells
- immune response
- inflammatory response
- lymphocyte migration into lymph node
- mature conventional dendritic cell differentiation
- myeloid dendritic cell chemotaxis
- negative regulation of dendritic cell apoptotic process
- negative regulation of interleukin-12 production
- negative thymic T cell selection
- positive regulation of actin filament polymerization
- positive regulation of canonical NF-kappaB signal transduction
- positive regulation of cell adhesion
- positive regulation of cell motility
- positive regulation of cell-matrix adhesion
- positive regulation of cytosolic calcium ion concentration
- positive regulation of dendritic cell antigen processing and presentation
- positive regulation of dendritic cell chemotaxis
- positive regulation of ERK1 and ERK2 cascade
- positive regulation of filopodium assembly
- positive regulation of humoral immune response
- positive regulation of immunological synapse formation
- positive regulation of interleukin-12 production
- positive regulation of JNK cascade
- positive regulation of neutrophil chemotaxis
- positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
- positive regulation of phospholipase C/protein kinase C signal transduction
- positive regulation of pseudopodium assembly
- positive regulation of Rac protein signal transduction
- positive regulation of receptor-mediated endocytosis
- positive regulation of T cell receptor signaling pathway
- regulation of Cdc42 protein signal transduction
- regulation of interleukin-1 beta production
- regulation of type II interferon production
- release of sequestered calcium ion into cytosol
- response to lipopolysaccharide
- response to nitric oxide
- ruffle organization
- positive regulation of glycoprotein biosynthetic process involved in immunological synapse formation
- positive regulation of hypersensitivity
- positive regulation of T cell costimulation
- regulation of dendritic cell dendrite assembly
Molecular functions
- C-C chemokine receptor activity
- G protein-coupled receptor activity
- C-C motif chemokine 19 receptor activity
- C-C motif chemokine 21 receptor activity
- chemokine (C-C motif) ligand 19 binding
- chemokine (C-C motif) ligand 21 binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CCR7 as an antibody target. Whether an autoantibody or antibody against CCR7 could matter depends on whether native CCR7 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CCR7 is annotated at the cell surface, where native CCR7 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label CCR7 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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