| Name | nectin cell adhesion molecule 2 |
| Description | This gene encodes a single-pass type I membrane glycoprotein with two Ig-like C2-type domains and an Ig-like V-type domain. This protein is one of the plasma membrane components of adherens junctions. It also serves as an entry for certain mutant strains of herpes simplex virus and pseudorabies virus, and it is involved in cell to cell spreading of these viruses. Variations in this gene have been associated with differences in the severity of multiple sclerosis. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008] |
| Summary |
{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nNECTIN2—also known as CD112 or PVRL2—plays a central role in immune regulation by serving as a critical ligand for receptors expressed on natural killer (NK) cells and T cells. It binds the activating receptor DNAM‐1 (CD226) to promote cytotoxicity against stressed or malignant cells, as demonstrated by enhanced NK‐mediated lysis when NECTIN2 is present on target cells."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": " Moreover, high NECTIN2 expression on tumor targets and leukemic blasts can induce receptor cross‐linking that paradoxically leads to downregulation of DNAM‐1 on NK cells, thereby contributing to tumor escape"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": ";."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "5"}]}, {"type": "t", "text": " In parallel, NECTIN2 is recognized by the inhibitory receptor TIGIT, and its binding—characterized by moderate micromolar affinity—further modulates cytotoxic responses under inflammatory and tumor microenvironment conditions."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "6"}]}, {"type": "t", "text": " Recent immunotherapy approaches have even linked the blockade of NECTIN2-mediated interactions with enhanced anti-leukemic effects, underscoring its relevance in modulating effector cell functions."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "8", "end_ref": "10"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nBeyond immune regulation, NECTIN2 functions as a cell adhesion molecule and viral receptor. Its extracellular immunoglobulin-like domain mediates both homophilic and heterophilic interactions that support the formation of adherens junctions and the proper organization of cell–cell contacts."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "11"}]}, {"type": "t", "text": " The high-resolution crystallographic analysis of its V domain has provided insight into how charged residues control the affinity of NECTIN2 homodimers."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "13"}]}, {"type": "t", "text": " In addition, NECTIN2 participates in regulating vascular permeability—for example in the corpus luteum—and facilitates leukocyte transendothelial migration via heterophilic interactions with NECTIN3 on lymphocytes."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "14"}]}, {"type": "t", "text": " Moreover, in the context of viral infections, NECTIN2 functions as an entry receptor for alphaherpesviruses, and experimental studies with soluble forms of NECTIN2 show that its accumulation can reduce viral propagation."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "16"}]}, {"type": "t", "text": " Its direct interactions with classical adhesion molecules such as N-cadherin further support the maintenance of tissue architecture"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "17"}]}, {"type": "t", "text": ", while transgenic expression studies highlight its complex role during herpes simplex virus infection."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "18"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nGenetic, posttranslational, and tumor cell–intrinsic aspects of NECTIN2 further underscore its multifaceted functions in health and disease. Genetic polymorphisms and chromosomal rearrangements involving the NECTIN2 (PVRL2) gene are associated with diverse pathologies, including coronary heart disease"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "20"}]}, {"type": "t", "text": ", nonsyndromic orofacial clefts"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "21"}]}, {"type": "t", "text": ", and multiple sclerosis severity."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "23"}]}, {"type": "t", "text": " In various cancers, including colon carcinoma, ovarian cancer, diffuse large B-cell lymphoma, and acute myeloid leukemia, aberrant NECTIN2 expression—whether through enhanced transcription, dysregulated posttranslational ubiquitination, or gene fusion events—can influence tumor cell adhesion, metastasis, and immune evasion."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "24", "end_ref": "27"}]}, {"type": "t", "text": " In addition, NECTIN2 levels correlate with prognosis and have been linked to disease outcomes in acute myeloid leukemia and neuroblastoma, while its regulation via ubiquitination modulates tumor susceptibility to NK cell–mediated lysis."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "28", "end_ref": "30"}]}, {"type": "t", "text": " Epigenetic studies also implicate NECTIN2 in longevity and neurodegenerative processes, including Alzheimer’s disease, and its role in the brain has been associated with synapse formation and homeostasis."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "31", "end_ref": "33"}]}, {"type": "t", "text": " Finally, altered NECTIN2 expression in chronic lymphocytic leukemia has been linked to T-cell exhaustion, and studies in colon carcinoma further underscore its relevance as a potential diagnostic and prognostic marker."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "34", "end_ref": "36"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Cristina Bottino, Roberta Castriconi, Daniela Pende, et al. 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| NCBI Gene ID | 5819 |
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| Predicted Functions |
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| Expression in Tissues and Cell Lines |
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NECTIN2 has 4,741 functional associations with biological entities spanning 6 categories (chemical, functional term, phrase or reference, disease, phenotype or trait, cell line, cell type or tissue, gene, protein or microRNA, sequence feature) extracted from 50 datasets.
Click the + buttons to view associations for NECTIN2 from the datasets below.
If available, associations are ranked by standardized value
| Dataset | Summary | |
|---|---|---|
| Allen Brain Atlas Aging Dementia and Traumatic Brain Injury Tissue Sample Gene Expression Profiles | tissue samples with high or low expression of NECTIN2 gene relative to other tissue samples from the Allen Brain Atlas Aging Dementia and Traumatic Brain Injury Tissue Sample Gene Expression Profiles dataset. | |
| Carcinogenome Chemical Perturbation Carcinogenicity Signatures | small molecule perturbations changing expression of NECTIN2 gene from the Carcinogenome Chemical Perturbation Carcinogenicity Signatures dataset. | |
| CCLE Cell Line Proteomics | Cell lines associated with NECTIN2 protein from the CCLE Cell Line Proteomics dataset. | |
| CellMarker Gene-Cell Type Associations | cell types associated with NECTIN2 gene from the CellMarker Gene-Cell Type Associations dataset. | |
| ChEA Transcription Factor Targets 2022 | transcription factors binding the promoter of NECTIN2 gene in low- or high-throughput transcription factor functional studies from the CHEA Transcription Factor Targets 2022 dataset. | |
| CM4AI KOLF21J CRISPRi Gene Perturbation Atlas | gene perturbations changing expression of NECTIN2 gene from the CM4AI KOLF21J CRISPRi Gene Perturbation Atlas dataset. | |
| CM4AI U2OS Cell Map Protein Localization Assemblies | assemblies containing NECTIN2 protein from integrated AP-MS and IF data from the CM4AI U2OS Cell Map Protein Localization Assemblies dataset. | |
| COMPARTMENTS Curated Protein Localization Evidence Scores 2025 | cellular components containing NECTIN2 protein from the COMPARTMENTS Curated Protein Localization Evidence Scores 2025 dataset. | |
| COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 | cellular components co-occuring with NECTIN2 protein in abstracts of biomedical publications from the COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 dataset. | |
| DeepCoverMOA Drug Mechanisms of Action | small molecule perturbations with high or low expression of NECTIN2 protein relative to other small molecule perturbations from the DeepCoverMOA Drug Mechanisms of Action dataset. | |
| DepMap CRISPR Gene Dependency | cell lines with fitness changed by NECTIN2 gene knockdown relative to other cell lines from the DepMap CRISPR Gene Dependency dataset. | |
| DISEASES Experimental Gene-Disease Association Evidence Scores 2025 | diseases associated with NECTIN2 gene in GWAS datasets from the DISEASES Experimental Gene-Disease Assocation Evidence Scores 2025 dataset. | |
| DISEASES Text-mining Gene-Disease Association Evidence Scores 2025 | diseases co-occuring with NECTIN2 gene in abstracts of biomedical publications from the DISEASES Text-mining Gene-Disease Assocation Evidence Scores 2025 dataset. | |
| DisGeNET Gene-Disease Associations | diseases associated with NECTIN2 gene in GWAS and other genetic association datasets from the DisGeNET Gene-Disease Associations dataset. | |
| DisGeNET Gene-Phenotype Associations | phenotypes associated with NECTIN2 gene in GWAS and other genetic association datasets from the DisGeNET Gene-Phenoptype Associations dataset. | |
| GlyGen Glycosylated Proteins | ligands (chemical) binding NECTIN2 protein from the GlyGen Glycosylated Proteins dataset. | |
| GO Biological Process Annotations 2023 | biological processes involving NECTIN2 gene from the curated GO Biological Process Annotations 2023 dataset. | |
| GO Biological Process Annotations 2025 | biological processes involving NECTIN2 gene from the curated GO Biological Process Annotations2025 dataset. | |
| GO Cellular Component Annotations 2023 | cellular components containing NECTIN2 protein from the curated GO Cellular Component Annotations 2023 dataset. | |
| GO Cellular Component Annotations 2025 | cellular components containing NECTIN2 protein from the curated GO Cellular Component Annotations 2025 dataset. | |
| GO Molecular Function Annotations 2025 | molecular functions performed by NECTIN2 gene from the curated GO Molecular Function Annotations 2025 dataset. | |
| GTEx eQTL 2025 | SNPs regulating expression of NECTIN2 gene from the GTEx eQTL 2025 dataset. | |
| GTEx Tissue Gene Expression Profiles 2023 | tissues with high or low expression of NECTIN2 gene relative to other tissues from the GTEx Tissue Gene Expression Profiles 2023 dataset. | |
| GTEx Tissue-Specific Aging Signatures | tissue samples with high or low expression of NECTIN2 gene relative to other tissue samples from the GTEx Tissue-Specific Aging Signatures dataset. | |
| GWAS Catalog SNP-Phenotype Associations 2025 | phenotypes associated with NECTIN2 gene in GWAS datasets from the GWAS Catalog SNP-Phenotype Associations 2025 dataset. | |
| HuBMAP ASCT+B Annotations | cell types associated with NECTIN2 gene from the HuBMAP ASCT+B dataset. | |
| HuBMAP ASCT+B Augmented with RNA-seq Coexpression | cell types associated with NECTIN2 gene from the HuBMAP ASCT+B Augmented with RNA-seq Coexpression dataset. | |
| HuBMAP Azimuth Cell Type Annotations | cell types associated with NECTIN2 gene from the HuBMAP Azimuth Cell Type Annotations dataset. | |
| JASPAR Predicted Human Transcription Factor Targets 2025 | transcription factors regulating expression of NECTIN2 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Human Transcription Factor Targets dataset. | |
| JASPAR Predicted Mouse Transcription Factor Targets 2025 | transcription factors regulating expression of NECTIN2 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Mouse Transcription Factor Targets 2025 dataset. | |
| KEGG Pathways 2026 | pathways involving NECTIN2 protein from the KEGG Pathways 2026 dataset. | |
| LINCS L1000 CMAP Chemical Perturbation Consensus Signatures | small molecule perturbations changing expression of NECTIN2 gene from the LINCS L1000 CMAP Chemical Perturbations Consensus Signatures dataset. | |
| LINCS L1000 CMAP CRISPR Knockout Consensus Signatures | gene perturbations changing expression of NECTIN2 gene from the LINCS L1000 CMAP CRISPR Knockout Consensus Signatures dataset. | |
| MGI Mouse Phenotype Associations 2023 | phenotypes of transgenic mice caused by NECTIN2 gene mutations from the MGI Mouse Phenotype Associations 2023 dataset. | |
| MoTrPAC Rat Endurance Exercise Training | tissue samples with high or low expression of NECTIN2 gene relative to other tissue samples from the MoTrPAC Rat Endurance Exercise Training dataset. | |
| NIBR DRUG-seq U2OS MoA Box Gene Expression Profiles | drug perturbations changing expression of NECTIN2 gene from the NIBR DRUG-seq U2OS MoA Box dataset. | |
| PFOCR Pathway Figure Associations 2023 | pathways involving NECTIN2 protein from the PFOCR Pathway Figure Associations 2023 dataset. | |
| PFOCR Pathway Figure Associations 2024 | pathways involving NECTIN2 protein from the Wikipathways PFOCR 2024 dataset. | |
| Reactome Pathways 2024 | pathways involving NECTIN2 protein from the Reactome Pathways 2024 dataset. | |
| Replogle et al., Cell, 2022 K562 Essential Perturb-seq Gene Perturbation Signatures | gene perturbations changing expression of NECTIN2 gene from the Replogle et al., Cell, 2022 K562 Essential Perturb-seq Gene Perturbation Signatures dataset. | |
| Replogle et al., Cell, 2022 K562 Genome-wide Perturb-seq Gene Perturbation Signatures | gene perturbations changing expression of NECTIN2 gene from the Replogle et al., Cell, 2022 K562 Genome-wide Perturb-seq Gene Perturbation Signatures dataset. | |
| Replogle et al., Cell, 2022 RPE1 Essential Perturb-seq Gene Perturbation Signatures | gene perturbations changing expression of NECTIN2 gene from the Replogle et al., Cell, 2022 RPE1 Essential Perturb-seq Gene Perturbation Signatures dataset. | |
| Rummagene Transcription Factor Associations 2026 | transcription factors regulating expression of NECTIN2 gene from the Rummagene Transcription Factor Associations 2026 dataset. | |
| RummaGEO Drug Perturbation Signatures | drug perturbations changing expression of NECTIN2 gene from the RummaGEO Drug Perturbation Signatures dataset. | |
| RummaGEO Gene Perturbation Signatures | gene perturbations changing expression of NECTIN2 gene from the RummaGEO Gene Perturbation Signatures dataset. | |
| Sci-Plex Drug Perturbation Signatures | drug perturbations changing expression of NECTIN2 gene from the Sci-Plex Drug Perturbation Signatures dataset. | |
| Tahoe Therapeutics Tahoe 100M Perturbation Atlas | drug perturbations changing expression of NECTIN2 gene from the Tahoe Therapeutics Tahoe 100M Perturbation Atlas dataset. | |
| TISSUES Curated Tissue Protein Expression Evidence Scores 2025 | tissues with high expression of NECTIN2 protein from the TISSUES Curated Tissue Protein Expression Evidence Scores 2025 dataset. | |
| TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 | tissues co-occuring with NECTIN2 protein in abstracts of biomedical publications from the TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 dataset. | |
| WikiPathways Pathways 2024 | pathways involving NECTIN2 protein from the WikiPathways Pathways 2024 dataset. | |