EXOSC2
gene geneOn this page
Also known as hRrp4pRrp4pRRP4p7
Summary
EXOSC2 (exosome component 2, HGNC:17097) is a protein-coding gene on chromosome 9q34.12, encoding Exosome complex component RRP4 (Q13868). Non-catalytic component of the RNA exosome complex which has 3’->5’ exoribonuclease activity and participates in a multitude of cellular RNA processing and degradation events. It is a common-essential gene (DepMap: required in 98.3% of cancer cell lines).
Predicted to enable RNA binding activity. Involved in RNA catabolic process; RNA processing; and positive regulation of cell growth. Located in cytosol; nucleolus; and nucleoplasm. Part of nuclear exosome (RNase complex). Implicated in short stature, hearing loss, retinitis pigmentosa, and distinctive facies.
Source: NCBI Gene 23404 — RefSeq curated summary.
At a glance
- Gene–disease (curated): retinitis pigmentosa-hearing loss-premature aging-short stature-facial dysmorphism syndrome (Strong, GenCC)
- Clinical variants (ClinVar): 303 total — 2 likely-pathogenic
- Phenotypes (HPO): 43
- Cancer dependency (DepMap): dependent in 98.3% of screened cell lines (common-essential)
- MANE Select transcript:
NM_014285
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:17097 |
| Approved symbol | EXOSC2 |
| Name | exosome component 2 |
| Location | 9q34.12 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | hRrp4p, Rrp4p, RRP4, p7 |
| Ensembl gene | ENSG00000130713 |
| Ensembl biotype | protein_coding |
| OMIM | 602238 |
| Entrez | 23404 |
Gene structure
Transcript identifiers
Ensembl transcripts: 45 — 17 protein_coding, 13 nonsense_mediated_decay, 11 retained_intron, 4 protein_coding_CDS_not_defined
ENST00000372350, ENST00000372351, ENST00000372352, ENST00000372358, ENST00000430138, ENST00000463488, ENST00000467138, ENST00000490641, ENST00000491115, ENST00000495699, ENST00000546165, ENST00000685137, ENST00000685277, ENST00000686102, ENST00000686106, ENST00000687051, ENST00000687420, ENST00000688258, ENST00000688350, ENST00000688364, ENST00000688967, ENST00000689662, ENST00000689890, ENST00000691104, ENST00000691162, ENST00000691284, ENST00000691425, ENST00000691926, ENST00000691956, ENST00000692554, ENST00000692794, ENST00000693011, ENST00000693435, ENST00000693610, ENST00000851442, ENST00000851443, ENST00000851444, ENST00000851445, ENST00000851446, ENST00000917908, ENST00000917909, ENST00000954431, ENST00000954432, ENST00000954433, ENST00000954434
RefSeq mRNA: 3 — MANE Select: NM_014285
NM_001282708, NM_001282709, NM_014285
CCDS: CCDS65160, CCDS65161, CCDS6935
Canonical transcript exons
ENST00000372358 — 9 exons
| Exon | Start | End |
|---|---|---|
| ENSE00003458912 | 130699329 | 130699394 |
| ENSE00003472459 | 130695492 | 130695593 |
| ENSE00003489687 | 130700867 | 130700935 |
| ENSE00003520620 | 130698162 | 130698251 |
| ENSE00003655953 | 130697582 | 130697627 |
| ENSE00003679934 | 130693780 | 130693913 |
| ENSE00003690464 | 130702134 | 130702310 |
| ENSE00003788968 | 130703053 | 130703181 |
| ENSE00003848430 | 130703694 | 130704892 |
Expression profiles
Bgee: expression breadth ubiquitous, 256 present calls, max score 91.28.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 24.9712 / max 553.9949, expressed in 1805 samples.
FANTOM5 promoters (1 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 99029 | 24.9712 | 1805 |
Top tissues by expression
285 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| ganglionic eminence | UBERON:0004023 | 91.28 | gold quality |
| ventricular zone | UBERON:0003053 | 90.81 | gold quality |
| cortical plate | UBERON:0005343 | 88.46 | gold quality |
| primordial germ cell in gonad | CL:0000670 ∩ UBERON:0000991 | 88.31 | gold quality |
| calcaneal tendon | UBERON:0003701 | 87.92 | gold quality |
| cerebellar hemisphere | UBERON:0002245 | 87.27 | gold quality |
| cerebellar cortex | UBERON:0002129 | 87.17 | gold quality |
| left ovary | UBERON:0002119 | 87.13 | gold quality |
| granulocyte | CL:0000094 | 87.07 | gold quality |
| right hemisphere of cerebellum | UBERON:0014890 | 86.94 | gold quality |
| right ovary | UBERON:0002118 | 86.87 | gold quality |
| endometrium epithelium | UBERON:0004811 | 86.65 | gold quality |
| rectum | UBERON:0001052 | 86.63 | gold quality |
| embryo | UBERON:0000922 | 86.61 | gold quality |
| left uterine tube | UBERON:0001303 | 86.02 | gold quality |
| sural nerve | UBERON:0015488 | 85.87 | gold quality |
| body of uterus | UBERON:0009853 | 85.77 | gold quality |
| cerebellum | UBERON:0002037 | 85.75 | gold quality |
| colonic epithelium | UBERON:0000397 | 85.71 | gold quality |
| body of pancreas | UBERON:0001150 | 85.62 | gold quality |
| monocyte | CL:0000576 | 85.58 | gold quality |
| islet of Langerhans | UBERON:0000006 | 85.42 | gold quality |
| muscle of leg | UBERON:0001383 | 85.22 | gold quality |
| stromal cell of endometrium | CL:0002255 | 85.21 | gold quality |
| gastrocnemius | UBERON:0001388 | 85.16 | gold quality |
| mucosa of stomach | UBERON:0001199 | 85.08 | gold quality |
| ovary | UBERON:0000992 | 85.06 | gold quality |
| right lobe of liver | UBERON:0001114 | 85.04 | gold quality |
| body of stomach | UBERON:0001161 | 85.03 | gold quality |
| skin of abdomen | UBERON:0001416 | 85.00 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | no | 0.00 |
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
23 targeting EXOSC2, 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-6778-3P | 99.96 | 67.29 | 2693 |
| HSA-MIR-515-5P | 99.92 | 69.82 | 2343 |
| HSA-MIR-519E-5P | 99.92 | 69.62 | 2358 |
| HSA-MIR-6875-3P | 99.82 | 70.26 | 2983 |
| HSA-MIR-7-5P | 99.67 | 70.53 | 1809 |
| HSA-MIR-510-3P | 99.54 | 70.06 | 2965 |
| HSA-MIR-136-5P | 99.50 | 67.26 | 1153 |
| HSA-MIR-5695 | 99.41 | 67.48 | 1047 |
| HSA-MIR-6882-5P | 99.35 | 71.13 | 1206 |
| HSA-MIR-1273H-3P | 99.29 | 67.55 | 980 |
| HSA-MIR-1286 | 99.09 | 66.23 | 1046 |
| HSA-MIR-1257 | 98.97 | 68.02 | 1133 |
| HSA-MIR-4742-3P | 98.73 | 69.82 | 1803 |
| HSA-MIR-4726-3P | 98.49 | 63.89 | 1385 |
| HSA-MIR-6827-5P | 98.46 | 64.88 | 1256 |
| HSA-MIR-138-1-3P | 98.25 | 67.89 | 867 |
| HSA-MIR-3166 | 98.24 | 66.63 | 1223 |
| HSA-MIR-4443 | 98.02 | 66.25 | 1928 |
| HSA-MIR-3144-5P | 97.64 | 65.45 | 646 |
| HSA-MIR-4639-3P | 97.54 | 67.12 | 787 |
| HSA-MIR-3200-5P | 97.34 | 65.97 | 826 |
| HSA-MIR-5187-3P | 97.28 | 67.10 | 1037 |
| HSA-MIR-4264 | 96.35 | 64.76 | 1480 |
Functional genomics
DepMap (CRISPR cell-line fitness): dependent in 98.3% of screened cell lines, common-essential.
Literature-anchored findings (GeneRIF, showing 6)
- Protein-protein interactions between human exosome components support the assembly of RNase PH-type subunits into a six-membered PNPase-like ring. (PMID:12419256)
- Knock-down of hRrp41p or hRrp4p but not PM/Scl-100 or PM/Scl-75 leads to codepletion of other subunits. (PMID:17545563)
- The EXOSC2-associated phenotype shows only minimal overlap with the previously reported diseases associated with mutations. (PMID:26843489)
- Genetic and genomic studies of pathogenic EXOSC2 mutations in the newly described disease SHRF implicate the autophagy pathway in disease pathogenesis. (PMID:31628467)
- A budding yeast model for human disease mutations in the EXOSC2 cap subunit of the RNA exosome complex. (PMID:34162742)
- Low expression of EXOSC2 protects against clinical COVID-19 and impedes SARS-CoV-2 replication. (PMID:36241425)
Cross-species orthologs
5 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | exosc2 | ENSDARG00000028688 |
| mus_musculus | Exosc2 | ENSMUSG00000039356 |
| rattus_norvegicus | Exosc2 | ENSRNOG00000009245 |
| drosophila_melanogaster | Rrp4 | FBGN0034879 |
| caenorhabditis_elegans | WBGENE00022232 |
Paralogs (1): EXOSC3 (ENSG00000107371)
Protein
Protein identifiers
Exosome complex component RRP4 — Q13868 (reviewed: Q13868)
Alternative names: Exosome component 2, Ribosomal RNA-processing protein 4
All UniProt accessions (9): Q13868, A0A8I5KRS5, A0A8I5KV47, A0A8I5KVY3, A0A8I5KYK9, A0A8I5QL34, A3KFL2, A3KFL5, B4E001
UniProt curated annotations — full annotation on UniProt →
Function. Non-catalytic component of the RNA exosome complex which has 3’->5’ exoribonuclease activity and participates in a multitude of cellular RNA processing and degradation events. In the nucleus, the RNA exosome complex is involved in proper maturation of stable RNA species such as rRNA, snRNA and snoRNA, in the elimination of RNA processing by-products and non-coding ‘pervasive’ transcripts, such as antisense RNA species and promoter-upstream transcripts (PROMPTs), and of mRNAs with processing defects, thereby limiting or excluding their export to the cytoplasm. The RNA exosome may be involved in Ig class switch recombination (CSR) and/or Ig variable region somatic hypermutation (SHM) by targeting AICDA deamination activity to transcribed dsDNA substrates. In the cytoplasm, the RNA exosome complex is involved in general mRNA turnover and specifically degrades inherently unstable mRNAs containing AU-rich elements (AREs) within their 3’ untranslated regions, and in RNA surveillance pathways, preventing translation of aberrant mRNAs. It seems to be involved in degradation of histone mRNA. The catalytic inactive RNA exosome core complex of 9 subunits (Exo-9) is proposed to play a pivotal role in the binding and presentation of RNA for ribonucleolysis, and to serve as a scaffold for the association with catalytic subunits and accessory proteins or complexes. EXOSC2 as peripheral part of the Exo-9 complex stabilizes the hexameric ring of RNase PH-domain subunits through contacts with EXOSC4 and EXOSC7.
Subunit / interactions. Component of the RNA exosome core complex (Exo-9), composed of EXOSC1, EXOSC2, EXOSC3, EXOSC4, EXOSC5, EXOSC6, EXOSC7, EXOSC8 and EXOSC9; within the complex interacts with EXOSC4 and EXOSC7. The catalytically inactive RNA exosome core complex (Exo-9) associates with the catalytic subunit EXOSC10/RRP6. Exo-9 may associate with DIS3 to form the nucleolar exosome complex, or DIS3L to form the cytoplasmic exosome complex. Exo-9 is formed by a hexameric base ring consisting of the heterodimers EXOSC4-EXOSC9, EXOSC5-EXOSC8 and EXOSC6-EXOSC7, and a cap ring consisting of EXOSC1, EXOSC2 and EXOSC3. The RNA exosome complex associates with cofactors C1D/RRP47, MPHOSPH6/MPP6 and MTREX/MTR4. Interacts with GTPBP1. Interacts with ZFP36L1 (via N-terminus).
Subcellular location. Cytoplasm. Nucleus. Nucleolus.
Disease relevance. Short stature, hearing loss, retinitis pigmentosa, and distinctive facies (SHRF) [MIM:617763] An autosomal recessive disorder characterized by childhood myopia, early onset retinitis pigmentosa, progressive sensorineural hearing loss, hypothyroidism, short stature, brachydactyly, recognisable facial gestalt, premature ageing and mild intellectual disability. The disease is caused by variants affecting the gene represented in this entry.
Similarity. Belongs to the RRP4 family.
Isoforms (3)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q13868-1 | 1 | yes |
| Q13868-2 | 2 | |
| Q13868-3 | 3 |
RefSeq proteins (3): NP_001269637, NP_001269638, NP_055100* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR004088 | KH_dom_type_1 | Domain |
| IPR012340 | NA-bd_OB-fold | Homologous_superfamily |
| IPR025721 | Exosome_cplx_N_dom | Domain |
| IPR026699 | Exosome_RNA_bind1/RRP40/RRP4 | Family |
| IPR036612 | KH_dom_type_1_sf | Homologous_superfamily |
| IPR048565 | S1_RRP4 | Domain |
Pfam: PF14382, PF15985, PF21266
UniProt features (36 total): strand 16, helix 7, turn 6, splice variant 2, sequence variant 2, chain 1, domain 1, modified residue 1
Structure
Experimental structures (PDB)
8 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 9G8M | ELECTRON MICROSCOPY | 3.3 |
| 2NN6 | X-RAY DIFFRACTION | 3.35 |
| 9G8O | ELECTRON MICROSCOPY | 3.4 |
| 6D6Q | ELECTRON MICROSCOPY | 3.45 |
| 6D6R | ELECTRON MICROSCOPY | 3.45 |
| 9G8N | ELECTRON MICROSCOPY | 3.7 |
| 6H25 | ELECTRON MICROSCOPY | 3.8 |
| 9G8P | ELECTRON MICROSCOPY | 7 |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q13868-F1 | 81.25 | 0.31 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Post-translational modifications (1): 124
Function
Pathways and Gene Ontology
Reactome pathways
7 pathways
| ID | Pathway |
|---|---|
| R-HSA-380994 | ATF4 activates genes in response to endoplasmic reticulum stress |
| R-HSA-429958 | mRNA decay by 3’ to 5’ exoribonuclease |
| R-HSA-450385 | Butyrate Response Factor 1 (BRF1) binds and destabilizes mRNA |
| R-HSA-450513 | Tristetraprolin (TTP, ZFP36) binds and destabilizes mRNA |
| R-HSA-450604 | KSRP (KHSRP) binds and destabilizes mRNA |
| R-HSA-6791226 | Major pathway of rRNA processing in the nucleolus and cytosol |
| R-HSA-9930044 | Nuclear RNA decay |
MSigDB gene sets: 328 (showing top):
GOBP_RIBOSOME_BIOGENESIS, REACTOME_UNFOLDED_PROTEIN_RESPONSE_UPR, GOMF_RNA_NUCLEASE_ACTIVITY, GOMF_NUCLEASE_ACTIVITY, GOBP_SNO_S_RNA_METABOLIC_PROCESS, MODULE_45, KAAB_HEART_ATRIUM_VS_VENTRICLE_UP, GOBP_TRNA_METABOLIC_PROCESS, MATTIOLI_MGUS_VS_PCL, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_DN, KENNY_CTNNB1_TARGETS_UP, GRAESSMANN_RESPONSE_TO_MC_AND_DOXORUBICIN_DN, GOBP_GROWTH, GOBP_MACROMOLECULE_CATABOLIC_PROCESS, MODULE_16
GO Biological Process (11): exonucleolytic trimming to generate mature 3’-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) (GO:0000467), nuclear-transcribed mRNA catabolic process (GO:0000956), rRNA processing (GO:0006364), RNA processing (GO:0006396), RNA catabolic process (GO:0006401), positive regulation of cell growth (GO:0030307), U4 snRNA 3’-end processing (GO:0034475), CUT catabolic process (GO:0071034), nuclear polyadenylation-dependent rRNA catabolic process (GO:0071035), TRAMP-dependent tRNA surveillance pathway (GO:0071038), poly(A)-dependent snoRNA 3’-end processing (GO:0071051)
GO Molecular Function (5): 3’-5’-RNA exonuclease activity (GO:0000175), RNA binding (GO:0003723), 7S RNA binding (GO:0008312), exonuclease activity (GO:0004527), protein binding (GO:0005515)
GO Cellular Component (9): nuclear exosome (RNase complex) (GO:0000176), cytoplasmic exosome (RNase complex) (GO:0000177), exosome (RNase complex) (GO:0000178), nucleus (GO:0005634), nucleoplasm (GO:0005654), nucleolus (GO:0005730), cytoplasm (GO:0005737), cytosol (GO:0005829), nucleolar exosome (RNase complex) (GO:0101019)
Reactome top-level categories
Rollup of top-5 pathways:
| Category | Pathways |
|---|---|
| Regulation of mRNA stability by proteins that bind AU-rich elements | 3 |
| PERK regulates gene expression | 1 |
| Deadenylation-dependent mRNA decay | 1 |
| rRNA processing in the nucleus and cytosol | 1 |
| Metabolism of RNA | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| nuclear lumen | 3 |
| cellular anatomical structure | 3 |
| nuclear RNA surveillance | 2 |
| exosome (RNase complex) | 2 |
| cytoplasm | 2 |
| intracellular anatomical structure | 2 |
| maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) | 1 |
| rRNA 3’-end processing | 1 |
| mRNA catabolic process | 1 |
| RNA processing | 1 |
| rRNA metabolic process | 1 |
| ribosome biogenesis | 1 |
| gene expression | 1 |
| RNA biosynthetic process | 1 |
| primary metabolic process | 1 |
| RNA metabolic process | 1 |
| nucleic acid catabolic process | 1 |
| regulation of cell growth | 1 |
| cell growth | 1 |
| positive regulation of growth | 1 |
| positive regulation of cellular process | 1 |
| snRNA 3’-end processing | 1 |
| RNA catabolic process | 1 |
| tRNA surveillance | 1 |
| sno(s)RNA 3’-end processing | 1 |
| 3’-5’ exonuclease activity | 1 |
| RNA exonuclease activity, producing 5’-phosphomonoesters | 1 |
| nucleic acid binding | 1 |
| RNA binding | 1 |
| nuclease activity | 1 |
| hydrolase activity, acting on ester bonds | 1 |
| binding | 1 |
| nucleus | 1 |
| nuclear protein-containing complex | 1 |
| exoribonuclease complex | 1 |
| intracellular membrane-bounded organelle | 1 |
| intracellular membraneless organelle | 1 |
| nuclear exosome (RNase complex) | 1 |
| nucleolus | 1 |
Protein interactions and networks
STRING
2147 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| EXOSC2 | EXOSC3 | Q9NQT5 | 996 |
| EXOSC2 | EXOSC1 | Q9Y3B2 | 996 |
| EXOSC2 | EXOSC7 | Q15024 | 991 |
| EXOSC2 | EXOSC6 | Q5RKV6 | 984 |
| EXOSC2 | EXOSC4 | Q9NPD3 | 982 |
| EXOSC2 | EXOSC8 | Q96B26 | 978 |
| EXOSC2 | EXOSC5 | Q9NQT4 | 972 |
| EXOSC2 | EXOSC9 | Q06265 | 943 |
| EXOSC2 | DIS3 | Q9Y2L1 | 819 |
| EXOSC2 | EXOSC10 | Q01780 | 775 |
| EXOSC2 | MTREX | P42285 | 714 |
| EXOSC2 | C1D | Q13901 | 709 |
| EXOSC2 | DIS3L | Q8TF46 | 649 |
| EXOSC2 | GRIPAP1 | Q4V328 | 649 |
| EXOSC2 | RBM7 | Q9Y580 | 641 |
IntAct
134 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| EXOSC4 | EXOSC2 | psi-mi:“MI:0915”(physical association) | 0.910 |
| EXOSC2 | EXOSC4 | psi-mi:“MI:0915”(physical association) | 0.910 |
| EXOSC3 | EXOSC2 | psi-mi:“MI:0915”(physical association) | 0.910 |
| EXOSC7 | EXOSC2 | psi-mi:“MI:0915”(physical association) | 0.890 |
| EXOSC2 | EXOSC7 | psi-mi:“MI:0915”(physical association) | 0.890 |
| EXOSC1 | EXOSC2 | psi-mi:“MI:0914”(association) | 0.850 |
| EXOSC2 | EXOSC10 | psi-mi:“MI:0914”(association) | 0.840 |
| EXOSC4 | EXOSC10 | psi-mi:“MI:0914”(association) | 0.840 |
| EXOSC1 | EXOSC10 | psi-mi:“MI:0915”(physical association) | 0.810 |
| EXOSC1 | EXOSC10 | psi-mi:“MI:0914”(association) | 0.810 |
| EXOSC3 | EXOSC10 | psi-mi:“MI:0914”(association) | 0.790 |
| EXOSC2 | MPHOSPH6 | psi-mi:“MI:0915”(physical association) | 0.770 |
| DIS3 | EXOSC10 | psi-mi:“MI:0914”(association) | 0.740 |
| COMMD4 | VPS26C | psi-mi:“MI:0914”(association) | 0.730 |
| C1D | EXOSC10 | psi-mi:“MI:0914”(association) | 0.730 |
| DIS3L | EXOSC2 | psi-mi:“MI:0914”(association) | 0.690 |
| MPHOSPH6 | MTREX | psi-mi:“MI:0914”(association) | 0.690 |
| PTK2 | TGFB1I1 | psi-mi:“MI:0914”(association) | 0.680 |
| rep | MPHOSPH10 | psi-mi:“MI:0914”(association) | 0.660 |
| C1D | ZFC3H1 | psi-mi:“MI:0914”(association) | 0.640 |
| EXOSC3 | MTREX | psi-mi:“MI:0914”(association) | 0.640 |
| EXOSC5 | ZFC3H1 | psi-mi:“MI:0914”(association) | 0.640 |
| EXOSC9 | EXOSC10 | psi-mi:“MI:0914”(association) | 0.640 |
BioGRID (322): EXOSC2 (Affinity Capture-RNA), EXOSC2 (Affinity Capture-MS), EXOSC2 (Affinity Capture-MS), EXOSC2 (Affinity Capture-MS), EXOSC2 (Affinity Capture-MS), DIS3 (Co-fractionation), EXOSC10 (Co-fractionation), EXOSC2 (Co-fractionation), EXOSC2 (Co-fractionation), EXOSC2 (Co-fractionation), EXOSC2 (Co-fractionation), EXOSC2 (Co-fractionation), EXOSC2 (Co-fractionation), EXOSC2 (Co-fractionation), EXOSC2 (Co-fractionation)
ESM2 similar proteins: A0A0U1WZ18, A0A1S4A695, A2VE01, A4FV08, A4IHW6, C7EXK4, D3ZRP6, O88958, P38421, P43246, P43247, P46279, P46926, P61221, P61222, P62318, P62320, P62323, P62487, P62488, P62489, Q13868, Q1W374, Q1W375, Q1W376, Q1W377, Q24208, Q259G4, Q2KID0, Q3MHE4, Q3SYW1, Q4R7R3, Q503E1, Q5E9B8, Q5R8T8, Q5XXB5, Q5ZJL4, Q64422, Q6PA43, Q7XPW5
Diamond homologs: A1RXQ7, A5UJS0, A9A5C8, B1L6N8, D5U396, E0SQX5, E3GZ90, O26780, O29758, O59221, Q13868, Q469M4, Q4JB26, Q5JIR5, Q6L222, Q8PTT9, Q8TPX7, Q8TYC0, Q8U0L8, Q8ZVM8, Q975G7, Q97BZ6, Q9HIP3, Q9UXC4, Q9V120, Q9YC02, P38792, Q09704, Q2KID0, Q8VBV3, Q95XD0, Q9ZVT7, Q12ZB8
SIGNOR signaling
1 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| EXOSC2 | “form complex” | Exosome_Complex | binding |
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 114 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.
Reactome pathways:
| Pathway | Partners | Fold | FDR |
|---|---|---|---|
| mRNA decay by 3’ to 5’ exoribonuclease | 8 | 65.6× | 2e-11 |
| Butyrate Response Factor 1 (BRF1) binds and destabilizes mRNA | 8 | 58.3× | 3e-11 |
| Tristetraprolin (TTP, ZFP36) binds and destabilizes mRNA | 8 | 58.3× | 3e-11 |
| KSRP (KHSRP) binds and destabilizes mRNA | 8 | 58.3× | 3e-11 |
| Nuclear RNA decay | 14 | 49.7× | 2e-18 |
| ATF4 activates genes in response to endoplasmic reticulum stress | 8 | 37.5× | 2e-09 |
| rRNA processing in the nucleus and cytosol | 8 | 14.8× | 4e-06 |
| Major pathway of rRNA processing in the nucleolus and cytosol | 20 | 14.2× | 2e-15 |
GO biological processes:
| GO term | Partners | Fold | FDR |
|---|---|---|---|
| rRNA catabolic process | 7 | 66.7× | 7e-10 |
| RNA catabolic process | 12 | 52.5× | 2e-15 |
| maturation of 5.8S rRNA | 5 | 50.6× | 3e-06 |
| nuclear-transcribed mRNA catabolic process | 5 | 36.8× | 1e-05 |
| RNA processing | 14 | 29.5× | 1e-14 |
| rRNA processing | 14 | 19.1× | 4e-12 |
| ribosomal small subunit biogenesis | 7 | 15.3× | 2e-05 |
| negative regulation of translation | 7 | 13.2× | 4e-05 |
Disease & clinical
Clinical variants and AI predictions
ClinVar
303 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 2 |
| Uncertain significance | 148 |
| Likely benign | 127 |
| Benign | 11 |
Top pathogenic / likely-pathogenic (2)
| Variant ID | HGVS | Classification |
|---|---|---|
| 2442149 | NM_014285.7(EXOSC2):c.611G>A (p.Trp204Ter) | Likely pathogenic |
| 446203 | NM_014285.7(EXOSC2):c.593G>A (p.Gly198Asp) | Likely pathogenic |
SpliceAI
1312 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 9:130693910:TGCG:T | donor_gain | 1.0000 |
| 9:130693910:TGCGG:T | donor_loss | 1.0000 |
| 9:130693911:GCG:G | donor_gain | 1.0000 |
| 9:130693911:GCGG:G | donor_gain | 1.0000 |
| 9:130693914:G:C | donor_loss | 1.0000 |
| 9:130693914:G:GG | donor_gain | 1.0000 |
| 9:130693915:T:G | donor_loss | 1.0000 |
| 9:130695475:T:G | acceptor_gain | 1.0000 |
| 9:130695479:C:CA | acceptor_gain | 1.0000 |
| 9:130695487:ATCAG:A | acceptor_gain | 1.0000 |
| 9:130699393:GT:G | donor_gain | 1.0000 |
| 9:130702211:T:TA | acceptor_gain | 1.0000 |
| 9:130703040:T:TA | acceptor_gain | 1.0000 |
| 9:130703049:A:AG | acceptor_gain | 1.0000 |
| 9:130703050:T:G | acceptor_gain | 1.0000 |
| 9:130703050:TAGC:T | acceptor_loss | 1.0000 |
| 9:130703051:A:AG | acceptor_gain | 1.0000 |
| 9:130703051:AGCCT:A | acceptor_gain | 1.0000 |
| 9:130703052:G:GG | acceptor_gain | 1.0000 |
| 9:130703052:GC:G | acceptor_gain | 1.0000 |
| 9:130703052:GCC:G | acceptor_gain | 1.0000 |
| 9:130703052:GCCT:G | acceptor_gain | 1.0000 |
| 9:130703052:GCCTG:G | acceptor_gain | 1.0000 |
| 9:130703067:T:TA | acceptor_gain | 1.0000 |
| 9:130703161:G:GT | donor_gain | 1.0000 |
| 9:130703179:CAGG:C | donor_loss | 1.0000 |
| 9:130703180:AGG:A | donor_loss | 1.0000 |
| 9:130703181:GGTAC:G | donor_loss | 1.0000 |
| 9:130703692:A:AG | acceptor_gain | 1.0000 |
| 9:130703692:AGA:A | acceptor_loss | 1.0000 |
AlphaMissense
1902 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 9:130698177:T:A | W96R | 1.000 |
| 9:130698177:T:C | W96R | 1.000 |
| 9:130697599:G:A | G81E | 0.999 |
| 9:130697614:G:A | G86E | 0.999 |
| 9:130697617:G:C | R87P | 0.999 |
| 9:130698178:G:C | W96S | 0.999 |
| 9:130698179:G:C | W96C | 0.999 |
| 9:130698179:G:T | W96C | 0.999 |
| 9:130700867:G:C | A143P | 0.999 |
| 9:130700868:C:A | A143D | 0.999 |
| 9:130700916:G:T | R159M | 0.999 |
| 9:130702238:C:A | N200K | 0.999 |
| 9:130702238:C:G | N200K | 0.999 |
| 9:130702240:G:A | G201D | 0.999 |
| 9:130702248:T:A | W204R | 0.999 |
| 9:130702248:T:C | W204R | 0.999 |
| 9:130695493:G:C | G42R | 0.998 |
| 9:130695494:G:A | G42D | 0.998 |
| 9:130695500:G:A | G44E | 0.998 |
| 9:130695530:C:A | A54E | 0.998 |
| 9:130695542:G:A | G58D | 0.998 |
| 9:130695566:T:C | L66S | 0.998 |
| 9:130697599:G:T | G81V | 0.998 |
| 9:130697602:A:T | D82V | 0.998 |
| 9:130697613:G:A | G86R | 0.998 |
| 9:130697613:G:C | G86R | 0.998 |
| 9:130698214:T:C | L108S | 0.998 |
| 9:130699330:G:C | R121T | 0.998 |
| 9:130699331:G:C | R121S | 0.998 |
| 9:130699331:G:T | R121S | 0.998 |
dbSNP variants (sampled 300 via entrez): RS1000064620 (9:130701488 G>A,T), RS1000082707 (9:130697855 A>G,T), RS1000158856 (9:130691850 C>G), RS1000645967 (9:130695164 T>C), RS1001414509 (9:130703285 C>A,G), RS1001593582 (9:130697143 G>A), RS1001760788 (9:130703512 C>G), RS1002068791 (9:130704410 A>G), RS1002495136 (9:130696295 G>T), RS1002548991 (9:130695964 A>C), RS1002717639 (9:130693032 C>T), RS1002831285 (9:130701791 C>A,T), RS1002998205 (9:130699694 T>G), RS1003500028 (9:130695005 G>A,C), RS1003555993 (9:130694716 G>A,C)
Disease associations
OMIM: gene MIM:602238 | disease phenotypes: MIM:617763
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| retinitis pigmentosa-hearing loss-premature aging-short stature-facial dysmorphism syndrome | Strong | Autosomal recessive |
Mondo (2): retinitis pigmentosa-hearing loss-premature aging-short stature-facial dysmorphism syndrome (MONDO:0044634), inherited retinal dystrophy (MONDO:0019118)
Orphanet (2): Retinitis pigmentosa-hearing loss-premature aging-short stature-facial dysmorphism syndrome (Orphanet:494439), OBSOLETE: Inherited retinal disorder (Orphanet:71862)
HPO phenotypes
43 total (30 of 43 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000219 | Thin upper lip vermilion |
| HP:0000343 | Long philtrum |
| HP:0000358 | Posteriorly rotated ears |
| HP:0000365 | Hearing impairment |
| HP:0000369 | Low-set ears |
| HP:0000455 | Broad nasal tip |
| HP:0000463 | Anteverted nares |
| HP:0000486 | Strabismus |
| HP:0000490 | Deeply set eye |
| HP:0000501 | Glaucoma |
| HP:0000510 | Rod-cone dystrophy |
| HP:0000545 | Myopia |
| HP:0000582 | Upslanted palpebral fissure |
| HP:0000639 | Nystagmus |
| HP:0000662 | Nyctalopia |
| HP:0000750 | Delayed speech and language development |
| HP:0000821 | Hypothyroidism |
| HP:0000822 | Hypertension |
| HP:0001131 | Corneal dystrophy |
| HP:0001156 | Brachydactyly |
| HP:0001256 | Mild intellectual disability |
| HP:0001263 | Global developmental delay |
| HP:0001270 | Motor delay |
| HP:0001272 | Cerebellar atrophy |
| HP:0001321 | Cerebellar hypoplasia |
| HP:0002120 | Cerebral cortical atrophy |
| HP:0002135 | Basal ganglia calcification |
| HP:0002188 | Delayed CNS myelination |
| HP:0002232 | Patchy alopecia |
GWAS associations
0 associations (top):
MeSH disease descriptors (1)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D058499 | Retinal Dystrophies | C11.768.585.658 |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
60 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| sodium arsenite | affects binding, increases reaction, decreases expression, increases activity, affects expression | 4 |
| bisphenol A | decreases expression, decreases methylation | 2 |
| deoxynivalenol | increases expression | 2 |
| Estradiol | increases expression | 2 |
| Tretinoin | decreases expression | 2 |
| Particulate Matter | decreases reaction, increases expression, affects cotreatment, decreases expression, increases abundance | 2 |
| GSK-J4 | decreases expression | 1 |
| FR900359 | increases phosphorylation | 1 |
| TAK-243 | increases sumoylation | 1 |
| bufotalin | decreases expression | 1 |
| methylmercuric chloride | decreases expression | 1 |
| bis(tri-n-butyltin)oxide | decreases expression | 1 |
| sodium arsenate | decreases expression | 1 |
| trichostatin A | affects expression | 1 |
| afimoxifene | decreases reaction, increases expression | 1 |
| tris(1,3-dichloro-2-propyl)phosphate | decreases expression | 1 |
| cobaltous chloride | decreases expression | 1 |
| potassium chromate(VI) | increases expression | 1 |
| isobutyl alcohol | affects cotreatment, decreases expression, increases abundance | 1 |
| cylindrospermopsin | increases expression | 1 |
| CGP 52608 | affects binding, increases reaction | 1 |
| K 7174 | decreases expression | 1 |
| 2-methyl-2H-pyrazole-3-carboxylic acid (2-methyl-4-o-tolylazophenyl)amide | decreases reaction, increases expression | 1 |
| NSC 689534 | affects binding, decreases expression | 1 |
| Resveratrol | affects cotreatment, increases expression | 1 |
| Temozolomide | increases expression | 1 |
| Sunitinib | decreases expression | 1 |
| Arsenic Trioxide | decreases expression | 1 |
| Troglitazone | decreases expression | 1 |
| Air Pollutants | affects expression, increases abundance | 1 |
Clinical trials (associated diseases)
39 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT04224207 | PHASE3 | COMPLETED | Management of Retinitis Pigmentosa by Mesenchymal Stem Cells by Wharton’s Jelly Derived Mesenchymal Stem Cells |
| NCT07082855 | PHASE3 | NOT_YET_RECRUITING | A Multicenter, Randomized, Double-Blind, Controlled Clinical Study of Minocycline for the Treatment of Retinitis Pigmentosa |
| NCT03763227 | PHASE2 | COMPLETED | Intravitreal Ranibizumab (Lucentis®) in the Treatment of Non-leaking Macular Cysts in Retinal Dystrophy |
| NCT04068207 | PHASE2 | COMPLETED | Minocycline Treatment in Retinitis Pigmentosa |
| NCT04945772 | PHASE2 | COMPLETED | Efficacy and Safety of MCO-010 Optogenetic Therapy in Adults With Retinitis Pigmentosa [RESTORE] |
| NCT05902962 | PHASE1 | COMPLETED | SAD of IVT VP-001 in PRPF31 Mutation-Associated Retinal Dystrophy Subjects |
| NCT06319872 | PHASE1 | RECRUITING | The Effects of Disulfiram (Antabuse®) on Visual Acuity in Patients With Retinal Degeneration |
| NCT06455826 | PHASE1 | COMPLETED | MAD of IVT VP-001 in PRPF31 Mutation-Associated Retinal Dystrophy Subjects (Wallaby) |
| NCT04855045 | PHASE2/PHASE3 | UNKNOWN | An Open-label, Dose Escalation and Double-masked, Randomized, Controlled Trial Evaluating Safety and Tolerability of Sepofarsen in Children (<8 Years of Age) With LCA10 Caused by Mutations in the CEP290 Gene. |
| NCT03872479 | PHASE1/PHASE2 | UNKNOWN | Single Ascending Dose Study in Participants With LCA10 |
| NCT04123626 | PHASE1/PHASE2 | ACTIVE_NOT_RECRUITING | A Study to Evaluate the Safety and Tolerability of QR-1123 in Subjects With Autosomal Dominant Retinitis Pigmentosa Due to the P23H Mutation in the RHO Gene |
| NCT04545736 | PHASE1/PHASE2 | RECRUITING | Oral Metformin for Treatment of ABCA4 Retinopathy |
| NCT06212297 | PHASE1/PHASE2 | ACTIVE_NOT_RECRUITING | Fellow-eye Study (FE) of LX101 in Subjects With Inherited Retinal Dystrophy |
| NCT06852963 | PHASE1/PHASE2 | ACTIVE_NOT_RECRUITING | A Repeat-Dose, Open-Label, Two Arm Safety and Efficacy Study of Two Doses of VP-001 Administered Intravitreally in Participants With Confirmed PRPF31 Mutation-Associated Retinal Dystrophy, Including Participants Previously Treated With VP001 |
| NCT07177196 | PHASE1/PHASE2 | ACTIVE_NOT_RECRUITING | Personalized Antisense Oligonucleotide Therapy for a Single Participant With PRPH2 Mutation Associated With Retinal Dystrophy |
| NCT07063030 | EARLY_PHASE1 | RECRUITING | A Study of LX107 Gene Therapy in AIPL1-IRD Patients |
| NCT01546181 | Not specified | COMPLETED | Retinal Imaging by Adaptive Optics in Healthy Eyes and During Retinal and General Diseases |
| NCT01876147 | Not specified | COMPLETED | Visual and Functional Assessment in Low Vision Patients |
| NCT01920867 | Not specified | UNKNOWN | Stem Cell Ophthalmology Treatment Study |
| NCT02014389 | Not specified | RECRUITING | Evaluation of Objective Perimetry Using Chromatic Multifocal Pupillometer |
| NCT02983305 | Not specified | COMPLETED | Optical Head-Mounted Display Technology for Low Vision Rehabilitation |
| NCT03592017 | Not specified | COMPLETED | Performance of Long-wavelength Autofluorescence Imaging |
| NCT03662386 | Not specified | TERMINATED | Prospective Analysis of Genotype-phenotype Correlations Observed in a Large Cohort of Patients With Hereditary Retinal Dystrophies - GEPHIRD |
| NCT03691168 | Not specified | UNKNOWN | Multi-center Observation of the Natural Course of Inherited Retinal Dystrophies |
| NCT03843840 | Not specified | COMPLETED | Dual Wavelength OCT |
| NCT03853252 | Not specified | COMPLETED | iPS Cells of Patients for Models of Retinal Dystrophies |
| NCT05130385 | Not specified | UNKNOWN | High Resolution Optical Coherence Tomography |
| NCT05294978 | Not specified | RECRUITING | EyeConic: Qualification for Cone-Optogenetics |
| NCT05573984 | Not specified | ACTIVE_NOT_RECRUITING | Natural History of PRPF31 Mutation-Associated Retinal Dystrophy |
| NCT05793515 | Not specified | COMPLETED | Mechanisms of Inherited Retinal Dystrophies Using Whole Genome Sequencing and in Vitro and in Vivo Models |
| NCT05820100 | Not specified | COMPLETED | Observational Study to Assess the Reliability and Validity of the MLYMT and MLSDT |
| NCT05976139 | Not specified | RECRUITING | Micropulsed Laser in Patients With Macular Oedema in Retinal Dystrophies |
| NCT06162585 | Not specified | ACTIVE_NOT_RECRUITING | Non-Interventional Long Term Follow-up Study of Participants Previously Enrolled in the RESTORE Study |
| NCT06177977 | Not specified | RECRUITING | SS-HH-OCT as a Novel Diagnostic Modality for Early-Onset Retinal Dystrophies (EORDs) |
| NCT06375239 | Not specified | RECRUITING | Observational Study to Assess Endpoint Operational Feasibility & Measurement Properties in Patients with Retinal Degeneration |
| NCT06908161 | Not specified | NOT_YET_RECRUITING | Functional Assessments in Vision Impairment |
| NCT07085533 | Not specified | RECRUITING | Natural History Study of Inherited Retinal Diseases |
| NCT07502664 | Not specified | RECRUITING | Development and Evaluation of Functional Visual Field and Navigation Endpoints in Moderate to Profound Inherited Retinal Disease (DEFINE-IRD) |
| NCT07529041 | Not specified | ENROLLING_BY_INVITATION | Real-time Acoustic Biofeedback for Enhancing Fixation Stability: A Proof-of-concept Study to Improve Ophthalmic Imaging Diagnostic Quality |
Related Atlas pages
- Associated diseases: retinitis pigmentosa-hearing loss-premature aging-short stature-facial dysmorphism syndrome
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): retinitis pigmentosa-hearing loss-premature aging-short stature-facial dysmorphism syndrome