CHMP1B
gene geneOn this page
Also known as CHMP1.5C18orf2Vps46B
Summary
CHMP1B (charged multivesicular body protein 1B, HGNC:24287) is a protein-coding gene on chromosome 18p11.21, encoding Charged multivesicular body protein 1b (Q7LBR1). Probable peripherally associated component of the endosomal sorting required for transport complex III (ESCRT-III) which is involved in multivesicular bodies (MVBs) formation and sorting of endosomal cargo proteins into MVBs.
CHMP1B belongs to the chromatin-modifying protein/charged multivesicular body protein (CHMP) family. These proteins are components of ESCRT-III (endosomal sorting complex required for transport III), a complex involved in degradation of surface receptor proteins and formation of endocytic multivesicular bodies (MVBs). Some CHMPs have both nuclear and cytoplasmic/vesicular distributions, and one such CHMP, CHMP1A (MIM 164010), is required for both MVB formation and regulation of cell cycle progression (Tsang et al., 2006 [PubMed 16730941]).
Source: NCBI Gene 57132 — RefSeq curated summary.
At a glance
- GWAS associations: 1
- Clinical variants (ClinVar): 37 total — 1 pathogenic, 1 likely-pathogenic
- Phenotypes (HPO): 1
- MANE Select transcript:
NM_020412
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:24287 |
| Approved symbol | CHMP1B |
| Name | charged multivesicular body protein 1B |
| Location | 18p11.21 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | CHMP1.5, C18orf2, Vps46B |
| Ensembl gene | ENSG00000255112 |
| Ensembl biotype | protein_coding |
| OMIM | 606486 |
| Entrez | 57132 |
Gene structure
Transcript identifiers
Ensembl transcripts: 2 — 1 protein_coding, 1 protein_coding_CDS_not_defined
ENST00000526991, ENST00000588284
RefSeq mRNA: 1 — MANE Select: NM_020412
NM_020412
CCDS: CCDS54180
Canonical transcript exons
ENST00000526991 — 1 exons
| Exon | Start | End |
|---|---|---|
| ENSE00002193578 | 11851413 | 11854444 |
Expression profiles
Bgee: expression breadth ubiquitous, 282 present calls, max score 98.22.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 48.4255 / max 1071.8051, expressed in 1812 samples.
FANTOM5 promoters (7 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 169455 | 27.8613 | 1806 |
| 169456 | 14.5910 | 1594 |
| 169454 | 4.8703 | 1689 |
| 169457 | 0.3187 | 150 |
| 169453 | 0.3092 | 81 |
| 169451 | 0.2577 | 72 |
| 169452 | 0.2174 | 56 |
Top tissues by expression
287 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| gastrocnemius | UBERON:0001388 | 98.22 | gold quality |
| muscle of leg | UBERON:0001383 | 97.12 | gold quality |
| type B pancreatic cell | CL:0000169 | 96.39 | silver quality |
| tibialis anterior | UBERON:0001385 | 96.23 | gold quality |
| gluteal muscle | UBERON:0002000 | 95.76 | gold quality |
| hindlimb stylopod muscle | UBERON:0004252 | 95.76 | gold quality |
| muscle organ | UBERON:0001630 | 95.65 | gold quality |
| mucosa of sigmoid colon | UBERON:0004993 | 94.80 | gold quality |
| popliteal artery | UBERON:0002250 | 94.79 | gold quality |
| tibial artery | UBERON:0007610 | 94.78 | gold quality |
| olfactory bulb | UBERON:0002264 | 94.60 | gold quality |
| colonic mucosa | UBERON:0000317 | 94.56 | gold quality |
| monocyte | CL:0000576 | 94.53 | gold quality |
| biceps brachii | UBERON:0001507 | 94.53 | gold quality |
| mononuclear cell | CL:0000842 | 94.52 | gold quality |
| leukocyte | CL:0000738 | 94.49 | gold quality |
| heart right ventricle | UBERON:0002080 | 94.48 | gold quality |
| skeletal muscle tissue of biceps brachii | UBERON:0004502 | 94.47 | gold quality |
| mucosa of paranasal sinus | UBERON:0005030 | 94.36 | gold quality |
| stromal cell of endometrium | CL:0002255 | 94.27 | gold quality |
| gall bladder | UBERON:0002110 | 94.27 | gold quality |
| deltoid | UBERON:0001476 | 94.10 | gold quality |
| nasal cavity epithelium | UBERON:0005384 | 94.08 | gold quality |
| islet of Langerhans | UBERON:0000006 | 93.99 | gold quality |
| olfactory segment of nasal mucosa | UBERON:0005386 | 93.91 | gold quality |
| skeletal muscle tissue | UBERON:0001134 | 93.43 | gold quality |
| rectum | UBERON:0001052 | 93.37 | gold quality |
| jejunal mucosa | UBERON:0000399 | 93.17 | gold quality |
| aorta | UBERON:0000947 | 93.17 | gold quality |
| seminal vesicle | UBERON:0000998 | 92.96 | gold quality |
Single-cell (SCXA)
Detected in 3 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-MTAB-6058 | no | 241.83 |
| E-GEOD-99795 | no | 131.49 |
| E-ANND-3 | no | 0.00 |
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
117 targeting CHMP1B, 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-5692A | 100.00 | 74.40 | 6850 |
| HSA-MIR-3163 | 100.00 | 77.23 | 8605 |
| HSA-MIR-4262 | 100.00 | 73.26 | 3931 |
| HSA-MIR-4425 | 100.00 | 67.59 | 1049 |
| HSA-MIR-1277-5P | 100.00 | 73.95 | 5056 |
| HSA-MIR-9-5P | 100.00 | 72.28 | 2361 |
| HSA-MIR-3646 | 100.00 | 73.56 | 5283 |
| HSA-MIR-3613-3P | 100.00 | 76.36 | 7965 |
| HSA-MIR-8485 | 100.00 | 77.57 | 4731 |
| HSA-MIR-5692B | 100.00 | 71.32 | 2622 |
| HSA-MIR-5692C | 100.00 | 71.32 | 2622 |
| HSA-MIR-450A-1-3P | 100.00 | 69.33 | 1837 |
| HSA-MIR-371B-5P | 99.99 | 75.34 | 4759 |
| HSA-MIR-181A-5P | 99.99 | 72.96 | 2995 |
| HSA-MIR-181B-5P | 99.99 | 72.97 | 2996 |
| HSA-MIR-181C-5P | 99.99 | 72.95 | 2996 |
| HSA-MIR-181D-5P | 99.99 | 73.04 | 2997 |
| HSA-MIR-548C-3P | 99.99 | 74.01 | 7587 |
| HSA-MIR-3662 | 99.99 | 73.82 | 5684 |
| HSA-MIR-4282 | 99.99 | 75.36 | 6408 |
| HSA-MIR-4775 | 99.98 | 75.00 | 6394 |
| HSA-MIR-373-5P | 99.98 | 75.36 | 4753 |
| HSA-MIR-616-5P | 99.98 | 75.58 | 4775 |
| HSA-MIR-4482-3P | 99.98 | 72.50 | 3147 |
| HSA-MIR-3658 | 99.96 | 73.87 | 4379 |
| HSA-MIR-590-3P | 99.96 | 74.34 | 6478 |
| HSA-MIR-4267 | 99.96 | 66.53 | 2368 |
| HSA-MIR-548AJ-3P | 99.96 | 73.38 | 5345 |
| HSA-MIR-548X-3P | 99.96 | 73.38 | 5345 |
| HSA-MIR-96-5P | 99.95 | 72.80 | 2140 |
Literature-anchored findings (GeneRIF, showing 6)
- CHMP1B is bound by the VPS4A microtubule interacting and transport (MIT) domain. (PMID:16174732)
- UBPY MIT domain and another ubiquitin isopeptidase, AMSH, reveals common interactions with CHMP1A and CHMP1B but a distinct selectivity of AMSH for CHMP3/VPS24, a core subunit of the ESCRT-III complex, and UBPY for CHMP7. (PMID:17711858)
- The 2.5-A structure of the C-terminal tail of CHMP1B with the MIT domain of spastin reveals a specific, high-affinity complex involving a noncanonical binding site between the first and third helices of the MIT domain. (PMID:18997780)
- The interaction between CL7MIT and CHMP1B and between CL7MIT and IST1 became stronger when IST1 or CHMP1B was additionally coexpressed, suggesting formation of ternary complex of calpain-7, IST1 and CHMP1B. (PMID:21616915)
- To learn how certain ESCRT-IIIs shape positively curved membranes, we determined structures of human membrane-bound CHMP1B-only, membrane-bound CHMP1B + IST1, and IST1-only filaments by cryo-EM (PMID:32251413)
- Friction-driven membrane scission by the human ESCRT-III proteins CHMP1B and IST1. (PMID:35858336)
Cross-species orthologs
5 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | chmp1b | ENSDARG00000099624 |
| mus_musculus | Chmp1b | ENSMUSG00000109901 |
| rattus_norvegicus | Chmp1b | ENSRNOG00000074953 |
| drosophila_melanogaster | Chmp1 | FBGN0036805 |
| caenorhabditis_elegans | did-2 | WBGENE00017735 |
Paralogs (4): CHMP2B (ENSG00000083937), CHMP3 (ENSG00000115561), CHMP2A (ENSG00000130724), CHMP1A (ENSG00000131165)
Protein
Protein identifiers
Charged multivesicular body protein 1b — Q7LBR1 (reviewed: Q7LBR1)
Alternative names: CHMP1.5, Chromatin-modifying protein 1b, Vacuolar protein sorting-associated protein 46-2
All UniProt accessions (1): Q7LBR1
UniProt curated annotations — full annotation on UniProt →
Function. Probable peripherally associated component of the endosomal sorting required for transport complex III (ESCRT-III) which is involved in multivesicular bodies (MVBs) formation and sorting of endosomal cargo proteins into MVBs. MVBs contain intraluminal vesicles (ILVs) that are generated by invagination and scission from the limiting membrane of the endosome and mostly are delivered to lysosomes enabling degradation of membrane proteins, such as stimulated growth factor receptors, lysosomal enzymes and lipids. The MVB pathway appears to require the sequential function of ESCRT-O, -I,-II and -III complexes. ESCRT-III proteins mostly dissociate from the invaginating membrane before the ILV is released. The ESCRT machinery also functions in topologically equivalent membrane fission events, such as the terminal stages of cytokinesis and the budding of enveloped viruses (HIV-1 and other lentiviruses). ESCRT-III proteins are believed to mediate the necessary vesicle extrusion and/or membrane fission activities, possibly in conjunction with the AAA ATPase VPS4. Involved in cytokinesis. Involved in recruiting VPS4A and/or VPS4B and SPAST to the midbody of dividing cells. Involved in HIV-1 p6- and p9-dependent virus release.
Subunit / interactions. Probable peripherally associated component of the endosomal sorting required for transport complex III (ESCRT-III). ESCRT-III components are thought to multimerize to form a flat lattice on the perimeter membrane of the endosome. Several assembly forms of ESCRT-III may exist that interact and act sequentially. Interacts with CHMP1A. Interacts with VTA1; the interaction probably involves the open conformation of CHMP1B. Interacts with CHMP2A. Interacts with VPS4A; the interaction is direct. Interacts with VPS4B; the interaction is direct. Interacts with SPAST (via MIT domain); the interaction is direct. Interacts with IST1. Interacts with MITD1. Interacts with STAMBP.
Subcellular location. Cytoplasm. Cytosol. Endosome. Late endosome membrane.
Tissue specificity. Widely expressed. Expressed in pancreas, kidney, skeletal muscle, liver, lung, placenta and brain.
Similarity. Belongs to the SNF7 family.
RefSeq proteins (1): NP_065145* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR005024 | Snf7_fam | Family |
Pfam: PF03357
UniProt features (27 total): mutagenesis site 9, region of interest 6, helix 6, coiled-coil region 2, chain 1, compositionally biased region 1, strand 1, short sequence motif 1
Structure
Experimental structures (PDB)
11 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 4TXR | X-RAY DIFFRACTION | 1 |
| 4TXQ | X-RAY DIFFRACTION | 2.21 |
| 3EAB | X-RAY DIFFRACTION | 2.5 |
| 8V2S | ELECTRON MICROSCOPY | 2.72 |
| 6E8G | ELECTRON MICROSCOPY | 2.9 |
| 8V2Q | ELECTRON MICROSCOPY | 2.95 |
| 8V2R | ELECTRON MICROSCOPY | 3.01 |
| 6TZ5 | ELECTRON MICROSCOPY | 3.1 |
| 6TZ4 | ELECTRON MICROSCOPY | 3.2 |
| 3JC1 | ELECTRON MICROSCOPY | 4 |
| 6TZ9 | ELECTRON MICROSCOPY | 6.2 |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q7LBR1-F1 | 81.29 | 0.45 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Mutagenesis-validated functional residues (9):
| Position | Phenotype |
|---|---|
| 158–159 | diminishes interaction with vps4b. |
| 178 | abolishes interaction with spast and no effect on interaction with vps4a; when associated with r-181 and r-184. |
| 181 | abolishes interaction with spasct and no effect on interaction with vps4a; when associated with r-178 and r-184. |
| 184 | decreases interaction with spast. |
| 184 | abolishes interaction with spast and no effect on interaction with vps4a; when associated with r-178 and r-181. |
| 188 | abolishes interaction with spast and vps4a; when associated with a-192. |
| 192 | abolishes interaction with spast and vps4a; when associated with a-188. |
| 192 | abolishes interaction with vps4b. |
| 195 | abolishes interaction with vps4b. |
Function
Pathways and Gene Ontology
Reactome pathways
0 pathways
MSigDB gene sets: 314 (showing top):
GSE18804_BRAIN_VS_COLON_TUMORAL_MACROPHAGE_UP, ATF_B, GOBP_MITOTIC_CYTOKINESIS, GOBP_CHROMOSOME_ORGANIZATION, GOBP_NUCLEAR_MEMBRANE_REASSEMBLY, GOBP_LYSOSOMAL_TRANSPORT, GOBP_REGULATION_OF_MICROTUBULE_BASED_PROCESS, GOBP_ENDOSOME_ORGANIZATION, GOBP_VACUOLE_ORGANIZATION, GOBP_MEMBRANE_BIOGENESIS, GOCC_VACUOLAR_MEMBRANE, GOBP_VESICLE_ORGANIZATION, GOBP_CHROMOSOME_LOCALIZATION, GOBP_ENDOSOME_TO_LYSOSOME_TRANSPORT, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_UP
GO Biological Process (25): plasma membrane repair (GO:0001778), autophagy (GO:0006914), nucleus organization (GO:0006997), mitotic metaphase chromosome alignment (GO:0007080), regulation of centrosome duplication (GO:0010824), protein transport (GO:0015031), nuclear membrane reassembly (GO:0031468), endosome transport via multivesicular body sorting pathway (GO:0032509), multivesicular body assembly (GO:0036258), viral budding via host ESCRT complex (GO:0039702), ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway (GO:0043162), establishment of protein localization (GO:0045184), late endosome to vacuole transport (GO:0045324), viral budding from plasma membrane (GO:0046761), cell division (GO:0051301), vesicle fusion with vacuole (GO:0051469), multivesicular body-lysosome fusion (GO:0061763), midbody abscission (GO:0061952), multivesicular body sorting pathway (GO:0071985), membrane fission (GO:0090148), autophagosome maturation (GO:0097352), regulation of mitotic spindle assembly (GO:1901673), late endosome to lysosome transport (GO:1902774), ESCRT III complex disassembly (GO:1904903), vacuolar transport (GO:0007034)
GO Molecular Function (4): protein domain specific binding (GO:0019904), identical protein binding (GO:0042802), MIT domain binding (GO:0090541), protein binding (GO:0005515)
GO Cellular Component (20): autophagosome membrane (GO:0000421), kinetochore (GO:0000776), ESCRT III complex (GO:0000815), nuclear pore (GO:0005643), nucleoplasm (GO:0005654), lysosomal membrane (GO:0005765), multivesicular body (GO:0005771), kinetochore microtubule (GO:0005828), cytosol (GO:0005829), plasma membrane (GO:0005886), endosome membrane (GO:0010008), membrane coat (GO:0030117), midbody (GO:0030496), multivesicular body membrane (GO:0032585), extracellular exosome (GO:0070062), amphisome membrane (GO:1904930), cytoplasm (GO:0005737), endosome (GO:0005768), membrane (GO:0016020), late endosome membrane (GO:0031902)
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| cellular anatomical structure | 5 |
| multivesicular body sorting pathway | 2 |
| viral budding | 2 |
| vesicle-mediated transport | 2 |
| vesicle fusion | 2 |
| membrane organization | 2 |
| protein binding | 2 |
| endosome membrane | 2 |
| membrane protein complex | 2 |
| late endosome | 2 |
| cytoplasm | 2 |
| plasma membrane organization | 1 |
| wound healing | 1 |
| catabolic process | 1 |
| transmembrane transport | 1 |
| process utilizing autophagic mechanism | 1 |
| organelle organization | 1 |
| mitotic sister chromatid segregation | 1 |
| mitotic cell cycle | 1 |
| metaphase chromosome alignment | 1 |
| mitotic cell cycle process | 1 |
| regulation of centrosome cycle | 1 |
| centrosome duplication | 1 |
| transport | 1 |
| intracellular protein localization | 1 |
| establishment of protein localization | 1 |
| membrane assembly | 1 |
| nuclear membrane organization | 1 |
| endosomal transport | 1 |
| multivesicular body organization | 1 |
| organelle assembly | 1 |
| ubiquitin-dependent protein catabolic process | 1 |
| protein catabolic process in the vacuole | 1 |
| establishment of localization | 1 |
| vacuolar transport | 1 |
| intercellular transport | 1 |
| non-lytic viral release | 1 |
| cellular process | 1 |
| vacuole fusion | 1 |
| endosome to lysosome transport via multivesicular body sorting pathway | 1 |
Protein interactions and networks
STRING
684 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| CHMP1B | SPAST | Q9UBP0 | 998 |
| CHMP1B | IST1 | P53990 | 996 |
| CHMP1B | CHMP3 | Q9Y3E7 | 963 |
| CHMP1B | A0A140T963 | A0A140T963 | 956 |
| CHMP1B | VPS4A | Q9UN37 | 947 |
| CHMP1B | STAMBP | O95630 | 923 |
| CHMP1B | CHMP2B | Q9UQN3 | 918 |
| CHMP1B | CHMP5 | Q9NZZ3 | 914 |
| CHMP1B | VPS4B | O75351 | 881 |
| CHMP1B | CHMP6 | Q96FZ7 | 877 |
| CHMP1B | CHMP7 | Q8WUX9 | 832 |
| CHMP1B | CHMP2A | O43633 | 822 |
| CHMP1B | CHMP4C | Q96CF2 | 817 |
| CHMP1B | SSNA1 | O43805 | 769 |
| CHMP1B | CHMP1A | Q9HD42 | 756 |
IntAct
111 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| STAMBP | CHMP1B | psi-mi:“MI:0915”(physical association) | 0.960 |
| CHMP1B | STAMBP | psi-mi:“MI:0915”(physical association) | 0.960 |
| CHMP1B | STAMBP | psi-mi:“MI:0403”(colocalization) | 0.960 |
| STAMBP | CHMP1B | psi-mi:“MI:0407”(direct interaction) | 0.960 |
| CHMP1B | VTA1 | psi-mi:“MI:0915”(physical association) | 0.740 |
| USP8 | CHMP1B | psi-mi:“MI:0915”(physical association) | 0.700 |
| CHMP1B | USP8 | psi-mi:“MI:0915”(physical association) | 0.700 |
| USP8 | CHMP1B | psi-mi:“MI:0407”(direct interaction) | 0.700 |
| CHMP1B | IST1 | psi-mi:“MI:0407”(direct interaction) | 0.630 |
| IST1 | CHMP1B | psi-mi:“MI:0407”(direct interaction) | 0.630 |
| VPS4A | CHMP1B | psi-mi:“MI:0915”(physical association) | 0.590 |
| CHMP1B | VPS4A | psi-mi:“MI:0915”(physical association) | 0.590 |
BioGRID (85): CHMP1B (Two-hybrid), CHMP1B (Co-fractionation), CHMP1B (Co-fractionation), CHMP1B (Co-fractionation), CHMP1B (Co-fractionation), IST1 (Co-fractionation), CHMP1B (Affinity Capture-MS), CHMP1B (Affinity Capture-MS), CHMP1B (Affinity Capture-MS), CHMP1B (Affinity Capture-MS), CHMP1B (Affinity Capture-MS), CHMP1B (Affinity Capture-MS), CHMP1B (Affinity Capture-MS), CHMP1B (Affinity Capture-MS), CHMP1B (Affinity Capture-MS)
ESM2 similar proteins: A0R5Z0, A4R8N4, A5U697, A9MI67, A9MZC5, B2AWS3, B2J6D9, B4TBY1, B4TPQ7, B7UNM4, C0Q3L2, P03689, P0AF78, P0AF79, P0AFM6, P0AFM7, P0AFM8, P32780, P54617, P9WHP4, P9WHP5, Q01076, Q2H922, Q4V8C8, Q55707, Q5E994, Q5R605, Q5ZKX1, Q5ZLM0, Q6NUD8, Q6P1J9, Q6PHF0, Q7LBR1, Q7T339, Q7ZVB1, Q8GXN6, Q8JZM7, Q91VH2, Q921W0, Q9CQD4
Diamond homologs: O60074, O96552, P69771, Q5E994, Q5R605, Q5ZKX1, Q6DF27, Q6NUD8, Q6PHF0, Q7LBR1, Q7SZB5, Q7ZVB1, Q84VG1, Q8LE58, Q921W0, Q99LU0, Q9CQD4, Q9HD42, Q9SSM4
SIGNOR signaling
1 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| CHMP1B | “form complex” | ESCRT-III | binding |
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 75 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 |
|---|---|---|---|
| Budding and maturation of HIV virion | 7 | 62.1× | 4e-09 |
| Endosomal Sorting Complex Required For Transport (ESCRT) | 7 | 56.1× | 5e-09 |
| HCMV Late Events | 5 | 10.7× | 7e-03 |
GO biological processes:
| GO term | Partners | Fold | FDR |
|---|---|---|---|
| nuclear membrane reassembly | 6 | 97.5× | 1e-09 |
| midbody abscission | 8 | 96.1× | 1e-12 |
| viral budding via host ESCRT complex | 7 | 92.1× | 6e-11 |
| multivesicular body sorting pathway | 7 | 92.1× | 6e-11 |
| multivesicular body assembly | 10 | 86.3× | 5e-15 |
| ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway | 7 | 62.4× | 1e-09 |
| regulation of centrosome duplication | 5 | 60.1× | 6e-07 |
| regulation of mitotic spindle assembly | 5 | 60.1× | 6e-07 |
Disease & clinical
Clinical variants and AI predictions
ClinVar
37 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 1 |
| Likely pathogenic | 1 |
| Uncertain significance | 33 |
| Likely benign | 1 |
| Benign | 1 |
Top pathogenic / likely-pathogenic (2)
| Variant ID | HGVS | Classification |
|---|---|---|
| 1460398 | NC_000018.9:g.(?11752433)(11881134_?)del | Pathogenic |
| 425529 | GRCh37/hg19 18p11.21(chr18:11752397-11881133)x3 | Likely pathogenic |
SpliceAI
23 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 18:11852067:G:GT | donor_gain | 0.7900 |
| 18:11852133:T:A | donor_gain | 0.7000 |
| 18:11851465:C:CA | acceptor_gain | 0.6500 |
| 18:11852442:G:GA | donor_gain | 0.5100 |
| 18:11852105:A:G | donor_gain | 0.4000 |
| 18:11852111:ACG:A | donor_gain | 0.4000 |
| 18:11852132:T:TA | donor_gain | 0.4000 |
| 18:11852441:T:TA | donor_gain | 0.3800 |
| 18:11852128:G:GT | donor_gain | 0.3400 |
| 18:11852107:TGTG:T | donor_gain | 0.3300 |
| 18:11852106:GT:G | donor_gain | 0.3200 |
| 18:11852134:TCCT:T | donor_gain | 0.2900 |
| 18:11853840:TGAG:T | acceptor_gain | 0.2800 |
| 18:11851908:G:GT | donor_gain | 0.2700 |
| 18:11851974:G:GT | donor_gain | 0.2600 |
| 18:11853841:GAGA:G | acceptor_gain | 0.2600 |
| 18:11853969:T:A | donor_gain | 0.2600 |
| 18:11853839:TTGAG:T | acceptor_gain | 0.2300 |
| 18:11851774:TGACC:T | donor_gain | 0.2200 |
| 18:11851984:A:G | donor_gain | 0.2200 |
| 18:11852443:GTTG:G | donor_gain | 0.2100 |
| 18:11853919:TTC:T | donor_gain | 0.2000 |
| 18:11853968:G:A | donor_gain | 0.2000 |
AlphaMissense
1340 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 18:11851666:C:A | A52D | 1.000 |
| 18:11851674:G:C | A55P | 1.000 |
| 18:11851863:T:C | F118L | 1.000 |
| 18:11851865:C:A | F118L | 1.000 |
| 18:11851865:C:G | F118L | 1.000 |
| 18:11851543:T:C | L11P | 0.999 |
| 18:11851654:C:A | A48E | 0.999 |
| 18:11851665:G:C | A52P | 0.999 |
| 18:11851719:G:C | A70P | 0.999 |
| 18:11851723:G:C | R71P | 0.999 |
| 18:11851726:T:A | V72D | 0.999 |
| 18:11851731:G:C | A74P | 0.999 |
| 18:11851737:G:C | A76P | 0.999 |
| 18:11851747:T:A | V79D | 0.999 |
| 18:11851755:G:C | A82P | 0.999 |
| 18:11851864:T:C | F118S | 0.999 |
| 18:11851980:G:C | A157P | 0.999 |
| 18:11851554:G:C | A15P | 0.998 |
| 18:11851564:T:C | L18P | 0.998 |
| 18:11851575:G:C | A22P | 0.998 |
| 18:11851626:G:C | A39P | 0.998 |
| 18:11851681:G:C | R57P | 0.998 |
| 18:11851695:G:C | A62P | 0.998 |
| 18:11851732:C:A | A74E | 0.998 |
| 18:11851735:T:A | V75E | 0.998 |
| 18:11851740:G:C | A77P | 0.998 |
| 18:11851864:T:G | F118C | 0.998 |
| 18:11851885:T:C | L125P | 0.998 |
| 18:11851966:T:C | L152P | 0.998 |
| 18:11851989:G:C | A160P | 0.998 |
dbSNP variants (sampled 300 via entrez): RS1000531446 (18:11852464 G>A,T), RS1000752031 (18:11854141 T>C), RS1000752397 (18:11853927 A>T), RS1000899948 (18:11851214 G>A,C,T), RS1001141044 (18:11851293 C>G,T), RS1002165187 (18:11852224 C>T), RS1003250484 (18:11852208 C>T), RS1003253703 (18:11852397 C>G), RS1003344886 (18:11849531 G>A,T), RS1005133475 (18:11853726 C>G), RS1005408355 (18:11852349 A>G), RS1005572794 (18:11850817 G>A), RS1005607129 (18:11850574 C>T), RS1005729382 (18:11852163 C>A,T), RS1006375138 (18:11853263 A>C)
Disease associations
OMIM: gene MIM:606486 | disease phenotypes:
GenCC curated gene-disease
Mondo (1): dystonic disorder (MONDO:0003441)
Orphanet (0):
HPO phenotypes
1 total (1 of 1 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0001332 | Dystonia |
GWAS associations
1 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST009391_1717 | Metabolite levels | 6.000000e-06 |
EFO canonical traits (1, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0010341 | cholesteryl ester 16:0 measurement |
MeSH disease descriptors (1)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D020821 | Dystonic Disorders | C10.228.662.300 |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
31 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| sodium arsenite | decreases expression, increases abundance, increases expression | 2 |
| Phenylmercuric Acetate | affects cotreatment, increases expression | 2 |
| Tobacco Smoke Pollution | affects expression, increases expression | 2 |
| Valproic Acid | affects expression, increases expression | 2 |
| aristolochic acid I | increases expression | 1 |
| methylmercuric chloride | increases expression | 1 |
| triphenyl phosphate | affects expression | 1 |
| trichostatin A | affects expression | 1 |
| 2-butenal | increases expression | 1 |
| zinc chromate | increases abundance, increases expression | 1 |
| di-n-butylphosphoric acid | affects expression | 1 |
| chromium hexavalent ion | increases abundance, increases expression | 1 |
| K 7174 | increases expression | 1 |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide | affects cotreatment, increases expression | 1 |
| erucylphospho-N,N,N-trimethylpropylammonium | increases expression | 1 |
| abrine | decreases expression | 1 |
| dorsomorphin | affects cotreatment, increases expression | 1 |
| (+)-JQ1 compound | increases expression | 1 |
| PCI 5002 | affects cotreatment, increases expression | 1 |
| Arsenic | increases abundance, increases expression | 1 |
| Benzo(a)pyrene | affects methylation | 1 |
| Copper | affects binding, decreases expression | 1 |
| Dichlorodiphenyl Dichloroethylene | decreases expression | 1 |
| Disulfiram | affects binding, decreases expression | 1 |
| Estradiol | decreases expression | 1 |
| Urethane | affects expression | 1 |
| Zinc | affects cotreatment, increases expression | 1 |
| 7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide | increases expression | 1 |
| Cyclosporine | increases expression | 1 |
| Antirheumatic Agents | decreases expression | 1 |
Cellosaurus cell lines
1 cell lines: 1 cancer cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_XM79 | HAP1 CHMP1B (-) | Cancer cell line | Male |
Clinical trials (associated diseases)
169 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT00142259 | PHASE4 | UNKNOWN | Efficacy and Safety of DBS of the GPi in Patients With Primary Generalized and Segmental Dystonia |
| NCT00950196 | PHASE4 | COMPLETED | Amantadine for Improving Neurologic Symptoms in Ataxia-Telangiectasia |
| NCT00998660 | PHASE4 | COMPLETED | RECHARGE Sub-Study to the Implantable Systems Performance Registry (ISPR) |
| NCT02263417 | PHASE4 | COMPLETED | A Randomized Controlled Trail Comparing Subthalamic and Pallidal Deep Brain Stimulation for Dystonia |
| NCT00169403 | PHASE3 | UNKNOWN | Pallidal Stimulation in Patients With Idiopathic Generalised Dystonia |
| NCT03232320 | PHASE3 | COMPLETED | Meditoxin® Treatment in Patients With Cervical Dystonia |
| NCT00001784 | PHASE2 | COMPLETED | Mexiletine for the Treatment of Focal Dystonia |
| NCT00105430 | PHASE2 | COMPLETED | Deep Brain Stimulation for Cervical Dystonia |
| NCT00106782 | PHASE2 | COMPLETED | Transcranial Electrical Polarization to Treat Focal Hand Dystonia |
| NCT00122044 | PHASE2 | COMPLETED | Childhood Hypertonia of Central Origin: A Trial of Anticholinergic Treatment Effects |
| NCT00169338 | PHASE2 | COMPLETED | Pallidal Stimulation in Patients With Post-anoxic and Idiopathic Dystonia |
| NCT00331669 | PHASE2 | UNKNOWN | Efficacy and Safety of Deep Brain Stimulation (DBS) of the Pallidal (GPi) in Patients With Tardive Dystonia |
| NCT02107261 | PHASE2 | COMPLETED | Incobotulinum Toxin A (Xeomin®) As A Treatment For Focal Task-Specific Dystonia Of The Musician’s Hand |
| NCT02470325 | PHASE2 | UNKNOWN | The Effects of Cannabis on Dystonia and Spasticity on Pediatric Patients |
| NCT05027997 | PHASE2 | COMPLETED | Exploratory Study of Dipraglurant (ADX48621) for the Treatment of Patients With Blepharospasm |
| NCT06412653 | PHASE2 | COMPLETED | Prospective Pilot Trial to Address Feasibility and Safety of Oral Zinc in GNAO1 Associated Disorders |
| NCT07304089 | PHASE2 | RECRUITING | A Study to Evaluate the Efficacy, Safety, and Tolerability of VIM0423 in Individuals With Isolated Dystonia |
| NCT01433757 | PHASE1 | COMPLETED | Ampicillin for DYT-1 Dystonia Motor Symptoms |
| NCT01698450 | PHASE1 | COMPLETED | Magnetic Resonance (MR) Guided Functional Ultrasound-Neurosurgery for Movement Disorders |
| NCT02982304 | PHASE1 | UNKNOWN | Multi-Target Pallidal and Thalamic Deep Brain Stimulation for Hemi-Dystonia |
| NCT06117020 | PHASE1 | COMPLETED | Single and Multiple Ascending Dose Study of MTR-601 in Healthy Individuals |
| NCT06554288 | PHASE1 | RECRUITING | Pharmacogenomic Contributions to Trihexyphenidyl Biotransformation and Response in Children With Dystonic Cerebral Palsy |
| NCT00004421 | PHASE2/PHASE3 | COMPLETED | Deep Brain Stimulation in Treating Patients With Dystonia |
| NCT00272246 | PHASE2/PHASE3 | UNKNOWN | Bilateral Internal Pallidum Stimulation in Primary Generalized Dystonia |
| NCT00608231 | PHASE2/PHASE3 | WITHDRAWN | Dexmedetomidine Effects on Microelectrode Recording in Deep Brain Stimulation |
| NCT04277247 | PHASE2/PHASE3 | UNKNOWN | Botulinum Toxin Type A for Foot Dystonia-associated Pain in Parkinson’s Disease |
| NCT02015039 | PHASE1/PHASE2 | COMPLETED | Pilot Trial of Botulinum Toxin and Occupational Therapy for Writer’s Cramp |
| NCT02911103 | PHASE1/PHASE2 | ACTIVE_NOT_RECRUITING | Deep Brain Stimulation Surgery for Focal Hand Dystonia |
| NCT04727177 | EARLY_PHASE1 | UNKNOWN | Precision-targeted Transcranial Magnetic Stimulation in the Treatment of Primary Dystonia |
| NCT00006336 | Not specified | COMPLETED | Sensory Training to Treat Focal Dystonia |
| NCT00017875 | Not specified | COMPLETED | Transcranial Magnetic Stimulation (TMS) Studies of Dystonia |
| NCT00029601 | Not specified | COMPLETED | Surround Inhibition in Patients With Dystonia |
| NCT00031369 | Not specified | TERMINATED | Brain Anatomy in Dystonia |
| NCT00047957 | Not specified | COMPLETED | Brain Inhibition of Muscle Movement in Normal Volunteers |
| NCT00050024 | Not specified | COMPLETED | Transcranial Magnetic Stimulation and Electrical Stimulation of Nerves to Study Focal Dystonia |
| NCT00072956 | Not specified | COMPLETED | The Physiology of Tricks |
| NCT00082615 | Not specified | COMPLETED | Neurophysiological Markers in Patients With Craniofacial Dystonia and Their Relatives |
| NCT00102999 | Not specified | COMPLETED | Brain Function in Focal Dystonia |
| NCT00285870 | Not specified | COMPLETED | Quantification of Upper Extremity Hypertonia |
| NCT00355927 | Not specified | UNKNOWN | Sedation During Microelectrode Recordings Before Deep Brain Stimulation for Movement Disorders. |
Related Atlas pages
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): dystonic disorder