HHLA2
gene geneOn this page
Also known as B7H7B7-H5B7yB7-H7
Summary
HHLA2 (HHLA2 member of B7 family, HGNC:4905) is a protein-coding gene on chromosome 3q13.13, encoding HERV-H LTR-associating protein 2 (Q9UM44). Through interaction with TMIGD2, costimulates T-cells in the context of TCR-mediated activation.
This gene encodes a protein ligand found on the surface of monocytes. The encoded protein is thought to regulate cell-mediated immunity by binding to a receptor on T lymphocytes and inhibiting the proliferation of these cells. Alternate splicing results in multiple transcript variants.
Source: NCBI Gene 11148 — RefSeq curated summary.
At a glance
- GWAS associations: 1
- Clinical variants (ClinVar): 65 total
- MANE Select transcript:
NM_001282556
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:4905 |
| Approved symbol | HHLA2 |
| Name | HHLA2 member of B7 family |
| Location | 3q13.13 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | B7H7, B7-H5, B7y, B7-H7 |
| Ensembl gene | ENSG00000114455 |
| Ensembl biotype | protein_coding |
| OMIM | 604371 |
| Entrez | 11148 |
Gene structure
Transcript identifiers
Ensembl transcripts: 35 — 35 protein_coding
ENST00000357759, ENST00000462629, ENST00000463019, ENST00000467282, ENST00000467562, ENST00000467761, ENST00000482099, ENST00000489514, ENST00000491820, ENST00000896068, ENST00000896069, ENST00000896070, ENST00000896071, ENST00000896072, ENST00000896073, ENST00000896074, ENST00000896075, ENST00000896076, ENST00000896077, ENST00000896078, ENST00000896079, ENST00000896080, ENST00000896081, ENST00000896082, ENST00000896083, ENST00000896084, ENST00000896085, ENST00000896086, ENST00000896087, ENST00000896088, ENST00000896089, ENST00000896090, ENST00000941561, ENST00000941562, ENST00000941563
RefSeq mRNA: 6 — MANE Select: NM_001282556
NM_001282556, NM_001282557, NM_001282558, NM_001282559, NM_001370244, NM_007072
CCDS: CCDS46883, CCDS63713, CCDS74975
Canonical transcript exons
ENST00000467761 — 10 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000774924 | 108362342 | 108362446 |
| ENSE00001075442 | 108355115 | 108355381 |
| ENSE00001075443 | 108357844 | 108358161 |
| ENSE00001226036 | 108375750 | 108375800 |
| ENSE00001226087 | 108376493 | 108376557 |
| ENSE00001731621 | 108377258 | 108378285 |
| ENSE00001865028 | 108310655 | 108310741 |
| ENSE00001899076 | 108296548 | 108296599 |
| ENSE00003488344 | 108351788 | 108351877 |
| ENSE00003489169 | 108353427 | 108353780 |
Expression profiles
Bgee: expression breadth ubiquitous, 112 present calls, max score 97.33.
FANTOM5 (CAGE): breadth tissue_specific, TPM avg 0.9782 / max 403.8366, expressed in 65 samples.
FANTOM5 promoters (5 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 37819 | 0.6948 | 53 |
| 37817 | 0.0825 | 16 |
| 37815 | 0.0775 | 12 |
| 37818 | 0.0765 | 19 |
| 37816 | 0.0469 | 14 |
Top tissues by expression
247 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| rectum | UBERON:0001052 | 97.33 | gold quality |
| mucosa of transverse colon | UBERON:0004991 | 95.80 | gold quality |
| jejunal mucosa | UBERON:0000399 | 93.97 | gold quality |
| colonic mucosa | UBERON:0000317 | 92.60 | gold quality |
| mucosa of sigmoid colon | UBERON:0004993 | 92.09 | gold quality |
| secondary oocyte | CL:0000655 | 90.99 | gold quality |
| oocyte | CL:0000023 | 90.36 | gold quality |
| gall bladder | UBERON:0002110 | 89.33 | gold quality |
| duodenum | UBERON:0002114 | 88.67 | gold quality |
| ileal mucosa | UBERON:0000331 | 85.80 | gold quality |
| olfactory segment of nasal mucosa | UBERON:0005386 | 84.50 | gold quality |
| transverse colon | UBERON:0001157 | 84.38 | gold quality |
| small intestine Peyer’s patch | UBERON:0003454 | 83.07 | gold quality |
| small intestine | UBERON:0002108 | 82.30 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 82.11 | gold quality |
| islet of Langerhans | UBERON:0000006 | 80.50 | gold quality |
| bronchial epithelial cell | CL:0002328 | 79.96 | gold quality |
| epithelium of bronchus | UBERON:0002031 | 77.10 | gold quality |
| bronchus | UBERON:0002185 | 75.98 | gold quality |
| intestine | UBERON:0000160 | 75.50 | gold quality |
| right uterine tube | UBERON:0001302 | 73.88 | gold quality |
| large intestine | UBERON:0000059 | 72.95 | gold quality |
| colon | UBERON:0001155 | 72.11 | gold quality |
| vermiform appendix | UBERON:0001154 | 72.04 | gold quality |
| colonic epithelium | UBERON:0000397 | 71.05 | gold quality |
| jejunum | UBERON:0002115 | 70.05 | gold quality |
| caecum | UBERON:0001153 | 67.41 | gold quality |
| pancreas | UBERON:0001264 | 66.96 | gold quality |
| primordial germ cell in gonad | CL:0000670 ∩ UBERON:0000991 | 65.37 | gold quality |
| adult mammalian kidney | UBERON:0000082 | 65.26 | gold quality |
Single-cell (SCXA)
Detected in 3 experiment(s), a significant marker in 3.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-GEOD-125970 | yes | 24.38 |
| E-MTAB-5061 | yes | 17.85 |
| E-ANND-3 | yes | 8.89 |
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
71 targeting HHLA2, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-4673 | 100.00 | 66.64 | 1490 |
| HSA-MIR-3134 | 100.00 | 66.43 | 777 |
| HSA-MIR-3646 | 100.00 | 73.56 | 5283 |
| HSA-MIR-6870-5P | 99.99 | 68.55 | 2115 |
| HSA-MIR-4645-5P | 99.98 | 65.81 | 1284 |
| HSA-MIR-520D-5P | 99.98 | 73.34 | 4883 |
| HSA-MIR-524-5P | 99.98 | 73.43 | 4882 |
| HSA-MIR-4723-5P | 99.97 | 68.70 | 2034 |
| HSA-MIR-5698 | 99.97 | 68.49 | 2029 |
| HSA-MIR-7111-5P | 99.97 | 68.48 | 2062 |
| HSA-MIR-4725-3P | 99.96 | 69.53 | 2520 |
| HSA-MIR-6780B-5P | 99.96 | 69.60 | 2562 |
| HSA-MIR-3682-5P | 99.93 | 67.97 | 1163 |
| HSA-MIR-6721-5P | 99.93 | 68.92 | 2981 |
| HSA-MIR-9902 | 99.89 | 69.15 | 2250 |
| HSA-MIR-4697-3P | 99.89 | 67.09 | 1123 |
| HSA-MIR-4271 | 99.88 | 68.32 | 2244 |
| HSA-MIR-6756-5P | 99.82 | 67.97 | 2466 |
| HSA-MIR-6875-3P | 99.82 | 70.26 | 2983 |
| HSA-MIR-320A-3P | 99.77 | 69.73 | 2107 |
| HSA-MIR-320B | 99.77 | 69.73 | 2107 |
| HSA-MIR-320C | 99.77 | 69.73 | 2107 |
| HSA-MIR-320D | 99.77 | 69.73 | 2107 |
| HSA-MIR-4429 | 99.77 | 69.62 | 2111 |
| HSA-MIR-92A-2-5P | 99.75 | 67.01 | 2164 |
| HSA-MIR-4524A-3P | 99.72 | 66.85 | 2406 |
| HSA-MIR-6766-5P | 99.68 | 67.70 | 2325 |
| HSA-MIR-3175 | 99.65 | 66.30 | 2031 |
| HSA-MIR-548AV-5P | 99.60 | 70.84 | 2107 |
| HSA-MIR-548K | 99.60 | 70.84 | 2107 |
Literature-anchored findings (GeneRIF, showing 40)
- Data indicate that HHLA2 protein was predominantly found on cell membranes with some in the cytoplasm. (PMID:23716685)
- B7 homologue 5 (B7-H5), was identified as a specific ligand for CD28H (PMID:23784006)
- Low B7-H5 expression is associated with pancreatic adenocarcinomas. (PMID:25519928)
- The HHLA2 pathway represents a novel immunosuppressive mechanism within the tumor microenvironment. (PMID:25549724)
- HHLA2 protein expression was evaluated in primary tumor specimens and metastatic disease using an osteosarcoma tumor microarray. HHLA2 was expressed in almost all metastatic disease specimens and was more prevalent than in primary specimens without known metastases. (PMID:27531281)
- HHLA2 was not detected in most of normal lung tissue but expressed in 66% of NSCLC across different subtypes. In particular, EGFR-mutated NSCLC was significantly associated with higher tumor HHLA2 expression in both discovery and validation lung cancer cohorts. HHLA2 is widely expressed in NSCLC and is associated with EGFR mutation and high TILs in lung adenocarcinoma. (PMID:27553831)
- Up-regulation of HHLA2, a novel immune checkpoint protein, in pancreatic ductal adenocarcinoma predicts post-surgical survival. (PMID:30447255)
- B7-H5/CD28H is a co-stimulatory signal pathway, and expression of B7-H5 is associated with improved disease prognosis in patients with pancreatic cancer. (PMID:30548441)
- Kaplan-Meier survival curve revealed that high HHLA2 expression was significantly correlated with the poor RFS and OS of BUC patients (both p < 0.05), and the ROC curve showed HHLA2 could be a good diagnostic marker (PMID:30602154)
- Results found HHLA2 more commonly expressed and possesses significant prognostic value compared with PD-L1 in intrahepatic cholangiocarcinoma (ICC) cases. High HHLA2 is frequent in PD-L1 negative cases and is associated with fewer infiltrating cytotoxic and regulatory T cells. (PMID:30885276)
- High HHLA2 expression levels in oral squamous cell carcinoma cells indicate poor prognosis. HHLA2 expression levels were positively correlated with TIM3, LAG3, B7H4, VISTA and B7H3 levels. (PMID:31089395)
- Low HHLA2 expression is associated with malignant glioma. (PMID:31578594)
- HHLA2 and PD-L1 co-expression predicts poor prognosis in patients with clear cell renal cell carcinoma. (PMID:31959726)
- B7-H7 (HHLA2) inhibits T-cell activation and proliferation in the presence of TCR and CD28 signaling. (PMID:32005952)
- B7-H4 and HHLA2, members of B7 family, are aberrantly expressed in EGFR mutated lung adenocarcinoma. (PMID:32853956)
- KIR3DL3 Is an Inhibitory Receptor for HHLA2 that Mediates an Alternative Immunoinhibitory Pathway to PD1. (PMID:33229411)
- H Long Terminal Repeat-Associating 2 (HHLA2) is a Biomarker of Advanced Stage Hepatocellular Carcinoma and Promotes Tumor Cell Development In Vitro. (PMID:33990536)
- B7-H7 Is Inducible on T Cells to Regulate Their Immune Response and Serves as a Marker for Exhaustion. (PMID:34140952)
- HHLA2 deficiency inhibits non-small cell lung cancer progression and THP-1 macrophage M2 polarization. (PMID:34152094)
- KIR3DL3-HHLA2 is a human immunosuppressive pathway and a therapeutic target. (PMID:34244312)
- Prognostic value of HHLA2 expression in solid tumors: A meta-analysis based on the Chinese population. (PMID:34397730)
- Interferon Gamma-Induced Interferon Regulatory Factor 1 Activates Transcription of HHLA2 and Induces Immune Escape of Hepatocellular Carcinoma Cells. (PMID:34536158)
- Association analysis of B7-H3 and B7-H4 gene single nucleotide polymorphisms in susceptibility to ankylosing spondylitis in eastern Chinese Han population. (PMID:34555253)
- HHLA2 Immune Checkpoint Is a Novel Prognostic Predictor in Hepatocellular Carcinoma. (PMID:35084443)
- Coexpression of HHLA2 and PD-L1 on Tumor Cells Independently Predicts the Survival of Spinal Chordoma Patients. (PMID:35145510)
- HHLA2 Activates the JAK/STAT Signaling Pathway by Binding to TMIGD2 in Hepatocellular Carcinoma Cells. (PMID:35175496)
- Different clinical significance of novel B7 family checkpoints VISTA and HHLA2 in human lung adenocarcinoma. (PMID:35187955)
- High expression of HHLA2 predicts poor prognosis in medullary thyroid carcinoma. (PMID:35348687)
- Comprehensive Analysis of HHLA2 as a Prognostic Biomarker and Its Association With Immune Infiltrates in Hepatocellular Carcinoma. (PMID:35371079)
- Human endogenous retrovirus-H long terminal repeat-associating 2: The next immune checkpoint for antitumour therapy. (PMID:35439678)
- Decrease of Membrane B7-H5 on CD14+ Cells in Severe Acute Pancreatitis Is Related to RANSON Scores and APACHE II Scores. (PMID:35761035)
- The methyltransferase METTL3 promotes tumorigenesis via mediating HHLA2 mRNA m6A modification in human renal cell carcinoma. (PMID:35794583)
- HHLA2 promotes tumor progression by long noncoding RNA H19 in human gallbladder cancer. (PMID:35920182)
- KIR3DL3-HHLA2 and TMIGD2-HHLA2 pathways: The dual role of HHLA2 in immune responses and its potential therapeutic approach for cancer immunotherapy. (PMID:35933091)
- HHLA2 predicts improved prognosis of anti-PD-1/PD-L1 immunotherapy in patients with melanoma. (PMID:36003385)
- Silencing tumor-intrinsic HHLA2 potentiates the anti-tumoral effect of paclitaxel on MG63 cells: Another side of immune checkpoint. (PMID:36535461)
- Increased co-expression of stromal HHLA2 and fibroblast activation protein in upper tract urothelial carcinoma. (PMID:36598731)
- Immunosuppression by Inflammation-Stimulated Amplification of Myeloid-Derived Suppressor Cells and Changes in Expression of Immune Checkpoint HHLA2 in Chronic Obstructive Pulmonary Disease. (PMID:36846109)
- Overexpression and Role of HHLA2, a Novel Immune Checkpoint, in Colorectal Cancer. (PMID:36982953)
- HHLA2 immune-regulatory roles in cancer. (PMID:37011487)
Cross-species orthologs
0 orthologs
Paralogs (15): BTN3A1 (ENSG00000026950), CD276 (ENSG00000103855), BTN3A3 (ENSG00000111801), BTN2A1 (ENSG00000112763), BTNL8 (ENSG00000113303), BTN2A2 (ENSG00000124508), BTN1A1 (ENSG00000124557), VTCN1 (ENSG00000134258), ICOSLG (ENSG00000160223), ERMAP (ENSG00000164010), BTNL9 (ENSG00000165810), BTNL3 (ENSG00000168903), BTN3A2 (ENSG00000186470), BTNL2 (ENSG00000204290), MOG (ENSG00000204655)
Protein
Protein identifiers
HERV-H LTR-associating protein 2 — Q9UM44 (reviewed: Q9UM44)
Alternative names: Human endogenous retrovirus-H long terminal repeat-associating protein 2
All UniProt accessions (6): C9J7D0, C9JD07, C9JY13, C9JY43, Q9UM44, H7C523
UniProt curated annotations — full annotation on UniProt →
Function. Through interaction with TMIGD2, costimulates T-cells in the context of TCR-mediated activation. Enhances T-cell proliferation and cytokine production via an AKT-dependent signaling cascade.
Subunit / interactions. Interacts with TMIGD2.
Subcellular location. Membrane.
Tissue specificity. Expressed at high levels in colon, kidney, testis, lung and pancreas, and at lower levels in small intestine, liver and skeletal muscle. In immune cells, highly expressed in B-cells, dendritic cells and macrophages. Not detected in T-cells.
Induction. Up-regulated in antigen-presenting cells in response to inflammation. Induced in dendritic cells in response to IFNG, poly(I:C) or heat-killed Listeria monocytogenes (at protein level).
Isoforms (2)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q9UM44-1 | 1 | yes |
| Q9UM44-2 | 2 |
RefSeq proteins (6): NP_001269485, NP_001269486, NP_001269487, NP_001269488, NP_001357173, NP_009003 (=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR003597 | Ig_C1-set | Domain |
| IPR003599 | Ig_sub | Domain |
| IPR007110 | Ig-like_dom | Domain |
| IPR013106 | Ig_V-set | Domain |
| IPR013783 | Ig-like_fold | Homologous_superfamily |
| IPR036179 | Ig-like_dom_sf | Homologous_superfamily |
| IPR050504 | IgSF_BTN/MOG-like | Family |
Pfam: PF07654, PF07686
UniProt features (16 total): sequence variant 3, domain 3, glycosylation site 3, disulfide bond 2, signal peptide 1, chain 1, splice variant 1, transmembrane region 1, region of interest 1
Structure
Experimental structures (PDB)
0 structures.
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q9UM44-F1 | 81.53 | 0.57 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Disulfide bonds (2): 159–210, 243–317
Glycosylation sites (3): 90, 103, 318
Function
Pathways and Gene Ontology
Reactome pathways
0 pathways
MSigDB gene sets: 84 (showing top):
GOBP_REGULATION_OF_CELL_ACTIVATION, GOBP_REGULATION_OF_LEUKOCYTE_PROLIFERATION, GOBP_ANTIGEN_RECEPTOR_MEDIATED_SIGNALING_PATHWAY, GOBP_LYMPHOCYTE_COSTIMULATION, GOCC_CELL_SURFACE, GOBP_POSITIVE_REGULATION_OF_CYTOKINE_PRODUCTION, GOBP_POSITIVE_REGULATION_OF_CELL_ADHESION, GOBP_POSITIVE_REGULATION_OF_LEUKOCYTE_PROLIFERATION, GOBP_CELL_CELL_ADHESION, GOBP_REGULATION_OF_IMMUNE_RESPONSE, GOBP_LEUKOCYTE_PROLIFERATION, GOBP_CYTOKINE_PRODUCTION, GOBP_POSITIVE_REGULATION_OF_CELL_ACTIVATION, GOBP_T_CELL_RECEPTOR_SIGNALING_PATHWAY, GOBP_POSITIVE_REGULATION_OF_ACTIVATED_T_CELL_PROLIFERATION
GO Biological Process (7): regulation of cytokine production (GO:0001817), positive regulation of cytokine production (GO:0001819), T cell costimulation (GO:0031295), positive regulation of activated T cell proliferation (GO:0042104), T cell receptor signaling pathway (GO:0050852), regulation of T cell activation (GO:0050863), regulation of leukocyte cell-cell adhesion (GO:1903037)
GO Molecular Function (2): signaling receptor binding (GO:0005102), protein binding (GO:0005515)
GO Cellular Component (3): external side of plasma membrane (GO:0009897), plasma membrane (GO:0005886), membrane (GO:0016020)
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| cytokine production | 2 |
| regulation of gene expression | 1 |
| regulation of multicellular organismal process | 1 |
| regulation of cytokine production | 1 |
| positive regulation of gene expression | 1 |
| positive regulation of multicellular organismal process | 1 |
| lymphocyte costimulation | 1 |
| positive regulation of T cell activation | 1 |
| positive regulation of T cell proliferation | 1 |
| regulation of activated T cell proliferation | 1 |
| activated T cell proliferation | 1 |
| antigen receptor-mediated signaling pathway | 1 |
| T cell activation | 1 |
| regulation of lymphocyte activation | 1 |
| leukocyte cell-cell adhesion | 1 |
| regulation of cell-cell adhesion | 1 |
| protein binding | 1 |
| binding | 1 |
| plasma membrane | 1 |
| cell surface | 1 |
| side of membrane | 1 |
| membrane | 1 |
| cell periphery | 1 |
| cellular anatomical structure | 1 |
Protein interactions and networks
STRING
342 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| HHLA2 | ANKRD13C-DT | Q9XRX5 | 972 |
| HHLA2 | TMIGD2 | Q96BF3 | 923 |
| HHLA2 | KIR3DL3 | Q8N743 | 837 |
| HHLA2 | CTLA4 | P16410 | 728 |
| HHLA2 | CD28 | P10747 | 675 |
| HHLA2 | NCR3LG1 | Q68D85 | 622 |
| HHLA2 | NCR3 | O14931 | 607 |
| HHLA2 | PDCD1LG2 | Q9BQ51 | 604 |
| HHLA2 | VSIR | Q9H7M9 | 600 |
| HHLA2 | TNFSF18 | Q9UNG2 | 588 |
| HHLA2 | CD274 | Q9NZQ7 | 581 |
| HHLA2 | CD8A | P01732 | 577 |
| HHLA2 | CD70 | P32970 | 562 |
| HHLA2 | TNFSF9 | P41273 | 558 |
| HHLA2 | BTLA | Q7Z6A9 | 535 |
IntAct
54 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| SLC41A2 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| SLC38A7 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| RPRM | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| FAM3C | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| BTNL8 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| BRICD5 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| NIPAL4 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| PGA4 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| TTMP | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| AQP9 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| NRM | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| SMCO4 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| TNMD | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| TMEM140 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| UNC93B1 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| ERMP1 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| HHLA2 | TMIGD2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| HHLA2 | KIR3DL3 | psi-mi:“MI:0915”(physical association) | 0.400 |
| TMIGD2 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| KIR3DL3 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.400 |
| FAM3C | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.000 |
| NIPAL4 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.000 |
| PGA4 | HHLA2 | psi-mi:“MI:0915”(physical association) | 0.000 |
BioGRID (14): HHLA2 (Two-hybrid), HHLA2 (Two-hybrid), HHLA2 (Two-hybrid), HHLA2 (Two-hybrid), HHLA2 (Two-hybrid), C3orf52 (Two-hybrid), NRM (Two-hybrid), TMEM140 (Two-hybrid), SMCO4 (Two-hybrid), NIPAL4 (Two-hybrid), RPRM (Two-hybrid), BRICD5 (Two-hybrid), FAM3C (Two-hybrid), PGA4 (Two-hybrid)
ESM2 similar proteins: A0A0E4BZH1, A7TZE6, A7TZF0, A7TZF3, A7TZG1, A7TZG3, A7XUX6, A7XV04, A7XV07, A7XV14, O54709, O70215, O95727, P0C1X9, P0DTI4, P26718, P42081, P61252, P83556, Q00609, Q29ZQ1, Q2YHT7, Q5RFR2, Q5UKY4, Q60651, Q60652, Q60654, Q60660, Q61885, Q63203, Q64329, Q68D85, Q6Q8B3, Q6XJV4, Q7Z6M3, Q8BG84, Q8BTP3, Q8MJH1, Q8TD46, Q921W8
Diamond homologs: A0A0E4BZH1, A4QPC6, A7TZE6, A7TZF0, A7TZF3, A7XUX6, A7XUY5, A7XUZ6, A7XV04, A7XV07, A8MVZ5, O00478, O00481, O70355, P18892, P55803, P78410, Q13410, Q16653, Q29ZQ1, Q5R7W8, Q5R960, Q5R996, Q5ZPR3, Q61885, Q62556, Q63345, Q68EV1, Q6MG97, Q6UX41, Q6UXE8, Q6UXG8, Q7KYR7, Q7TPB4, Q7TST0, Q8BJE2, Q8VE98, Q8WVV5, Q96KV6, Q96PL5
SIGNOR signaling
0 interactions.
Disease & clinical
Clinical variants and AI predictions
ClinVar
65 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 52 |
| Likely benign | 5 |
| Benign | 0 |
Top pathogenic / likely-pathogenic (0)
SpliceAI
1758 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 3:108351787:GCAT:G | acceptor_gain | 1.0000 |
| 3:108355113:A:AG | acceptor_gain | 1.0000 |
| 3:108355114:G:GG | acceptor_gain | 1.0000 |
| 3:108376491:A:AG | acceptor_gain | 1.0000 |
| 3:108376492:G:C | acceptor_loss | 1.0000 |
| 3:108376492:G:GA | acceptor_gain | 1.0000 |
| 3:108376492:GAAA:G | acceptor_gain | 1.0000 |
| 3:108296595:GTAAG:G | donor_gain | 0.9900 |
| 3:108310654:GCAC:G | acceptor_gain | 0.9900 |
| 3:108311755:A:AG | acceptor_gain | 0.9900 |
| 3:108351786:A:AG | acceptor_gain | 0.9900 |
| 3:108351787:G:GG | acceptor_gain | 0.9900 |
| 3:108351787:GC:G | acceptor_gain | 0.9900 |
| 3:108353426:GGCAT:G | acceptor_gain | 0.9900 |
| 3:108353455:T:G | acceptor_gain | 0.9900 |
| 3:108353551:G:GT | donor_gain | 0.9900 |
| 3:108353778:GAGGT:G | donor_loss | 0.9900 |
| 3:108353779:AGG:A | donor_loss | 0.9900 |
| 3:108353780:GG:G | donor_loss | 0.9900 |
| 3:108353782:T:A | donor_loss | 0.9900 |
| 3:108355110:T:G | acceptor_gain | 0.9900 |
| 3:108355114:GTTT:G | acceptor_gain | 0.9900 |
| 3:108375882:G:GG | donor_gain | 0.9900 |
| 3:108376492:GA:G | acceptor_gain | 0.9900 |
| 3:108376492:GAA:G | acceptor_gain | 0.9900 |
| 3:108376555:GTG:G | donor_gain | 0.9900 |
| 3:108376558:GTAA:G | donor_loss | 0.9900 |
| 3:108376559:TAA:T | donor_loss | 0.9900 |
| 3:108296597:AAGGT:A | donor_loss | 0.9800 |
| 3:108296599:GGT:G | donor_loss | 0.9800 |
AlphaMissense
2742 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 3:108353549:T:A | W63R | 0.954 |
| 3:108353549:T:C | W63R | 0.954 |
| 3:108353551:G:C | W63C | 0.953 |
| 3:108353551:G:T | W63C | 0.953 |
| 3:108357936:T:A | W260R | 0.946 |
| 3:108357936:T:C | W260R | 0.946 |
| 3:108353519:T:C | F53L | 0.942 |
| 3:108353521:T:A | F53L | 0.942 |
| 3:108353521:T:G | F53L | 0.942 |
| 3:108353717:T:G | Y119D | 0.933 |
| 3:108353550:G:C | W63S | 0.923 |
| 3:108358107:T:A | C317S | 0.918 |
| 3:108358108:G:C | C317S | 0.918 |
| 3:108353635:G:C | R91S | 0.908 |
| 3:108353635:G:T | R91S | 0.908 |
| 3:108353544:T:A | I61K | 0.907 |
| 3:108358101:T:G | Y315D | 0.906 |
| 3:108358102:A:C | Y315S | 0.906 |
| 3:108353769:T:C | L136P | 0.899 |
| 3:108353725:C:G | C121W | 0.895 |
| 3:108357938:G:C | W260C | 0.894 |
| 3:108357938:G:T | W260C | 0.894 |
| 3:108353667:G:T | G102V | 0.887 |
| 3:108358107:T:C | C317R | 0.887 |
| 3:108353673:C:A | A104E | 0.881 |
| 3:108355369:T:A | W225R | 0.875 |
| 3:108355369:T:C | W225R | 0.875 |
| 3:108355212:G:C | W172C | 0.873 |
| 3:108355212:G:T | W172C | 0.873 |
| 3:108353508:T:A | L49H | 0.870 |
dbSNP variants (sampled 300 via entrez): RS1000020648 (3:108307755 C>T), RS1000086970 (3:108346005 C>T), RS1000109916 (3:108377105 A>G), RS1000134351 (3:108298952 C>T), RS1000193117 (3:108360216 A>G), RS1000193390 (3:108351341 T>C), RS1000223071 (3:108350908 C>T), RS1000224068 (3:108360564 C>G), RS1000295337 (3:108305612 A>G), RS1000361990 (3:108337145 A>G), RS1000418752 (3:108299194 A>T), RS1000472171 (3:108344217 A>T), RS1000508331 (3:108371289 C>A), RS1000537733 (3:108371468 T>C), RS1000609441 (3:108325279 G>A)
Disease associations
OMIM: gene MIM:604371 | disease phenotypes:
GenCC curated gene-disease
Mondo (0):
Orphanet (0):
HPO phenotypes
0 total (0 of 0 shown, HPO-id order):
GWAS associations
1 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST006922_10 | Regular attendance at a religious group | 8.000000e-12 |
EFO canonical traits (1, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0009592 | social interaction measurement |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
16 total (human), top 16 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| bisphenol A | decreases expression | 1 |
| S-(1,2-dichlorovinyl)cysteine | affects response to substance, increases expression, affects cotreatment | 1 |
| CGP 52608 | affects binding, increases reaction | 1 |
| (+)-JQ1 compound | decreases expression | 1 |
| Zoledronic Acid | increases expression | 1 |
| Acetaminophen | increases expression | 1 |
| Air Pollutants | increases abundance, increases expression | 1 |
| Benzo(a)pyrene | affects methylation, increases methylation | 1 |
| Estradiol | increases expression | 1 |
| Ethyl Methanesulfonate | decreases expression | 1 |
| Lipopolysaccharides | increases expression, affects response to substance, affects cotreatment | 1 |
| Methyl Methanesulfonate | decreases expression | 1 |
| Smoke | increases abundance, increases expression | 1 |
| Tobacco Smoke Pollution | decreases expression | 1 |
| Valproic Acid | decreases methylation | 1 |
| Okadaic Acid | increases expression | 1 |
Clinical trials (associated diseases)
0 trials via MONDO — disease-level, not drug-specific.
Related Atlas pages
No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.