RNF123
gene geneOn this page
Also known as FLJ12565KPC1
Summary
RNF123 (ring finger protein 123, HGNC:21148) is a protein-coding gene on chromosome 3p21.31, encoding E3 ubiquitin-protein ligase RNF123 (Q5XPI4). Catalytic subunit of the KPC complex that acts as E3 ubiquitin-protein ligase. It is a selective cancer dependency (DepMap: 10.3% of cell lines).
The protein encoded by this gene contains a C-terminal RING finger domain, a motif present in a variety of functionally distinct proteins and known to be involved in protein-protein and protein-DNA interactions, and an N-terminal SPRY domain. This protein displays E3 ubiquitin ligase activity toward the cyclin-dependent kinase inhibitor 1B which is also known as p27 or KIP1. Alternative splicing results in multiple transcript variants.
Source: NCBI Gene 63891 — RefSeq curated summary.
At a glance
- GWAS associations: 25
- Clinical variants (ClinVar): 224 total
- Phenotypes (HPO): 1
- Cancer dependency (DepMap): dependent in 10.3% of screened cell lines
- MANE Select transcript:
NM_022064
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:21148 |
| Approved symbol | RNF123 |
| Name | ring finger protein 123 |
| Location | 3p21.31 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | FLJ12565, KPC1 |
| Ensembl gene | ENSG00000164068 |
| Ensembl biotype | protein_coding |
| OMIM | 614472 |
| Entrez | 63891 |
Gene structure
Transcript identifiers
Ensembl transcripts: 37 — 28 protein_coding, 5 retained_intron, 3 nonsense_mediated_decay, 1 protein_coding_CDS_not_defined
ENST00000327697, ENST00000432042, ENST00000433785, ENST00000443204, ENST00000444689, ENST00000454491, ENST00000457726, ENST00000469978, ENST00000486102, ENST00000487805, ENST00000494005, ENST00000497099, ENST00000498376, ENST00000629802, ENST00000859347, ENST00000859348, ENST00000859349, ENST00000859350, ENST00000859351, ENST00000859352, ENST00000859353, ENST00000859354, ENST00000859355, ENST00000859356, ENST00000859357, ENST00000931174, ENST00000931175, ENST00000955447, ENST00000955448, ENST00000955449, ENST00000955450, ENST00000955451, ENST00000955452, ENST00000955453, ENST00000955454, ENST00000955455, ENST00000955456
RefSeq mRNA: 1 — MANE Select: NM_022064
NM_022064
CCDS: CCDS33758
Canonical transcript exons
ENST00000327697 — 39 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001241098 | 49704984 | 49705182 |
| ENSE00001620651 | 49689557 | 49689606 |
| ENSE00003474301 | 49716102 | 49716177 |
| ENSE00003485668 | 49691130 | 49691247 |
| ENSE00003494671 | 49714090 | 49714174 |
| ENSE00003505899 | 49712479 | 49712656 |
| ENSE00003507760 | 49706791 | 49706898 |
| ENSE00003511094 | 49703427 | 49703528 |
| ENSE00003511219 | 49721185 | 49721529 |
| ENSE00003511512 | 49698052 | 49698137 |
| ENSE00003521107 | 49702334 | 49702405 |
| ENSE00003526109 | 49720511 | 49720653 |
| ENSE00003529420 | 49697363 | 49697457 |
| ENSE00003535316 | 49698755 | 49698822 |
| ENSE00003542085 | 49715575 | 49715714 |
| ENSE00003556005 | 49705982 | 49706065 |
| ENSE00003561507 | 49701811 | 49701910 |
| ENSE00003561602 | 49720800 | 49720894 |
| ENSE00003562474 | 49721020 | 49721105 |
| ENSE00003565399 | 49699668 | 49699772 |
| ENSE00003587164 | 49713910 | 49713997 |
| ENSE00003587884 | 49704650 | 49704756 |
| ENSE00003589653 | 49699468 | 49699582 |
| ENSE00003592299 | 49691425 | 49691509 |
| ENSE00003598799 | 49705534 | 49705679 |
| ENSE00003611031 | 49713513 | 49713587 |
| ENSE00003619450 | 49700472 | 49700564 |
| ENSE00003627391 | 49697885 | 49697939 |
| ENSE00003633079 | 49702083 | 49702144 |
| ENSE00003640842 | 49700636 | 49700709 |
| ENSE00003642402 | 49716393 | 49716477 |
| ENSE00003644001 | 49713738 | 49713825 |
| ENSE00003646993 | 49698440 | 49698526 |
| ENSE00003650926 | 49701491 | 49701608 |
| ENSE00003662172 | 49702633 | 49702753 |
| ENSE00003675681 | 49698980 | 49699105 |
| ENSE00003687508 | 49715822 | 49716010 |
| ENSE00003687796 | 49700227 | 49700352 |
| ENSE00003690760 | 49697143 | 49697222 |
Expression profiles
Bgee: expression breadth ubiquitous, 259 present calls, max score 97.66.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 8.5503 / max 118.9985, expressed in 1802 samples.
FANTOM5 promoters (4 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 36658 | 8.1844 | 1799 |
| 36655 | 0.2494 | 60 |
| 36657 | 0.0586 | 19 |
| 36656 | 0.0580 | 22 |
Top tissues by expression
283 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| hindlimb stylopod muscle | UBERON:0004252 | 97.66 | gold quality |
| gastrocnemius | UBERON:0001388 | 96.98 | gold quality |
| vastus lateralis | UBERON:0001379 | 96.08 | gold quality |
| muscle of leg | UBERON:0001383 | 96.02 | gold quality |
| muscle organ | UBERON:0001630 | 95.86 | gold quality |
| quadriceps femoris | UBERON:0001377 | 95.74 | gold quality |
| skeletal muscle tissue of rectus abdominis | UBERON:0004511 | 95.48 | gold quality |
| skeletal muscle tissue | UBERON:0001134 | 95.24 | gold quality |
| right lobe of liver | UBERON:0001114 | 94.54 | gold quality |
| triceps brachii | UBERON:0001509 | 94.43 | gold quality |
| body of tongue | UBERON:0011876 | 93.93 | gold quality |
| biceps brachii | UBERON:0001507 | 93.73 | gold quality |
| skeletal muscle tissue of biceps brachii | UBERON:0004502 | 93.57 | gold quality |
| diaphragm | UBERON:0001103 | 93.03 | silver quality |
| gluteal muscle | UBERON:0002000 | 92.77 | gold quality |
| deltoid | UBERON:0001476 | 92.65 | gold quality |
| right frontal lobe | UBERON:0002810 | 92.32 | gold quality |
| right hemisphere of cerebellum | UBERON:0014890 | 92.29 | gold quality |
| apex of heart | UBERON:0002098 | 92.27 | gold quality |
| muscle tissue | UBERON:0002385 | 92.27 | gold quality |
| cerebellar hemisphere | UBERON:0002245 | 92.05 | gold quality |
| cerebellar cortex | UBERON:0002129 | 92.03 | gold quality |
| liver | UBERON:0002107 | 91.03 | gold quality |
| cerebellum | UBERON:0002037 | 90.97 | gold quality |
| tibialis anterior | UBERON:0001385 | 90.67 | silver quality |
| tongue | UBERON:0001723 | 90.58 | gold quality |
| prefrontal cortex | UBERON:0000451 | 90.57 | gold quality |
| anterior cingulate cortex | UBERON:0009835 | 90.28 | gold quality |
| cingulate cortex | UBERON:0003027 | 90.23 | gold quality |
| caudate nucleus | UBERON:0001873 | 89.78 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 4.88 |
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): GLI3, NFE2L2, NRF1, TP53, ZNF699
miRNA regulators (miRDB)
24 targeting RNF123, 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-4692 | 100.00 | 67.32 | 2066 |
| HSA-MIR-4514 | 99.99 | 67.10 | 1870 |
| HSA-MIR-6891-5P | 99.98 | 66.53 | 1372 |
| HSA-MIR-3934-3P | 99.76 | 65.51 | 1351 |
| HSA-MIR-6505-5P | 99.73 | 69.25 | 1595 |
| HSA-MIR-377-5P | 99.70 | 65.28 | 712 |
| HSA-MIR-6715B-5P | 99.64 | 69.63 | 1420 |
| HSA-MIR-1260A | 99.61 | 66.67 | 1098 |
| HSA-MIR-1260B | 99.61 | 66.67 | 1098 |
| HSA-MIR-4269 | 99.55 | 69.89 | 1373 |
| HSA-MIR-155-5P | 99.35 | 70.16 | 1509 |
| HSA-MIR-5582-5P | 99.27 | 71.42 | 1879 |
| HSA-MIR-4742-5P | 98.89 | 68.41 | 1542 |
| HSA-MIR-4764-5P | 98.88 | 65.53 | 894 |
| HSA-MIR-6778-5P | 98.19 | 66.59 | 1239 |
| HSA-MIR-663B | 97.40 | 62.91 | 664 |
| HSA-MIR-1224-3P | 97.24 | 65.92 | 851 |
| HSA-MIR-10398-5P | 97.12 | 64.94 | 1051 |
| HSA-MIR-1291 | 96.28 | 65.89 | 1224 |
| HSA-MIR-4654 | 95.86 | 65.72 | 751 |
| HSA-MIR-6775-3P | 95.76 | 65.91 | 982 |
| HSA-MIR-4769-5P | 95.37 | 66.09 | 570 |
| HSA-MIR-3679-5P | 94.75 | 66.46 | 862 |
| HSA-MIR-1296-5P | 93.94 | 67.71 | 305 |
Functional genomics
DepMap (CRISPR cell-line fitness): dependent in 10.3% of screened cell lines.
Literature-anchored findings (GeneRIF, showing 17)
- KPC thus probably controls degradation of p27(Kip1) in G1 phase after export of the latter from the nucleus (PMID:15531880)
- Free p27 is recognized by the amino-terminal region of KPC1, which also associates with KPC2, and p27 is then polyubiquitylated by the carboxy-terminal RING-finger domain of KPC1. (PMID:15746103)
- Dendritic cell apoptosis was at least regulated by miR-221 and miR-155 through targeting the 3’-UTRs of p27kip1 and Kip1 ubiquitination-promoting complex 1 (KPC1), respectively. (PMID:21355095)
- This study deministrated that genome-wide significant quantitative trait locus was localized on chromsome 4p15 exhibiting pleiotropic effects on both the endophenotype (lymphocyte-derived expression levels of the RNF123 gene) and disease risk. (PMID:21982424)
- The number of patients with moyamoya disease, which is estimated at approximately one per 300 carriers of RNF123 polymorphism p.R4810K, is considered to be 53,800 in East Asian populations. (PMID:22688066)
- Our data support a role for RNF123 ubiquitin ligase in the degradation of HP1alpha and HP1beta upon lamin A/C knock-down (PMID:23077635)
- up-regulation of RNF123 was restricted to the cingulate cortex of patients with psychotic manifestations of the depression, supporting the role of the ubiquitin system in psychosis. (PMID:23668904)
- Study identified KPC1 as the Ub ligase (E3) that binds to the ankyrin repeats domain of p105, ubiquitinates it, and mediates its processing both under basal conditions and following signaling. Overexpression of KPC1 inhibits tumor growth likely mediated via excessive generation of p50. (PMID:25860612)
- Suggest that RNF213 R4810K carriers have lower angiogenic capacities, indicating that they might be more susceptible to insults of cerebral hypoxia. (PMID:26126547)
- RNF123 functions as a novel inhibitor of innate antiviral signaling mediated by RIG-I and MDA5, a function that does not depend on its E3 ligase activity. (PMID:27312109)
- Findings indicate epigenetic regulation of E3 ubiquitin ligase KPC1 associated with NF-kappa B (NF-kappaB) pathway activation, promoting metastatic melanoma progression. (PMID:28389511)
- p27 and its cognate ubiquitin ligases, Skp2/KPC/Pirh2, are specifically involved in determining the clinical profiles of lung carcinomas. (PMID:28601655)
- E3 ubiquitin ligase RNF123 targets LMNB1, Rb protein and LAP2alpha for proteasomal degradation. (PMID:29676528)
- Excess of the NF-kB p50 subunit generated by the ubiquitin ligase KPC1 suppresses tumors via PD-L1- and chemokines-mediated mechanisms. (PMID:33168738)
- Genome-wide association study identifies RNF123 locus as associated with chronic widespread musculoskeletal pain. (PMID:33926923)
- A short binding site in the KPC1 ubiquitin ligase mediates processing of NF-kappaB1 p105 to p50: A potential for a tumor-suppressive PROTAC. (PMID:34873064)
- The Tumor Suppressor Functions of Ubiquitin Ligase KPC1: From Cell-Cycle Control to NF-kappaB Regulator. (PMID:36880841)
Cross-species orthologs
4 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | rnf123 | ENSDARG00000031269 |
| mus_musculus | Rnf123 | ENSMUSG00000041528 |
| rattus_norvegicus | Rnf123 | ENSRNOG00000033378 |
| drosophila_melanogaster | Kpc1 | FBGN0038296 |
Paralogs (1): RSPRY1 (ENSG00000159579)
Protein
Protein identifiers
E3 ubiquitin-protein ligase RNF123 — Q5XPI4 (reviewed: Q5XPI4)
Alternative names: Kip1 ubiquitination-promoting complex protein 1, RING finger protein 123
All UniProt accessions (7): C9J266, C9JI97, C9JN91, C9JS59, Q5XPI4, F8WB91, H7C3U1
UniProt curated annotations — full annotation on UniProt →
Function. Catalytic subunit of the KPC complex that acts as E3 ubiquitin-protein ligase. Promotes the ubiquitination and proteasome-mediated degradation of CDKN1B which is the cyclin-dependent kinase inhibitor at the G0-G1 transition of the cell cycle. Also acts as a key regulator of the NF-kappa-B signaling by promoting maturation of the NFKB1 component of NF-kappa-B: acts by catalyzing ubiquitination of the NFKB1 p105 precursor, leading to limited proteasomal degradation of NFKB1 p105 and generation of the active NFKB1 p50 subunit. Also functions as an inhibitor of innate antiviral signaling mediated by RIGI and IFIH1 independently of its E3 ligase activity. Interacts with the N-terminal CARD domains of RIGI and IFIH1 and competes with the downstream adapter MAVS.
Subunit / interactions. Component of the KPC complex composed of RNF123/KPC1 and UBAC1/KPC2. Interacts with UBAC1 and CDKN1B via its N-terminal domain. Interacts with RIGI (via N-terminus) and IFIH1 (via N-terminus).
Subcellular location. Cytoplasm.
Post-translational modifications. Ubiquitinated, leading to its degradation. Deubiquitinated by USP19, thereby stimulating CDKN1B ubiquitin-dependent degradation.
Pathway. Protein modification; protein ubiquitination.
Miscellaneous. RNF123-mediated maturation of NFKB1 restricts tumor growth by promoting activation of the NF-kappa-B complex, leading to expression of tumor suppressor genes. Activation of NF-kappa-B promotes tumor suppression via CD274/PD-L1 and chemokines-mediated mechanisms.
Isoforms (2)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q5XPI4-1 | 1 | yes |
| Q5XPI4-2 | 2 |
RefSeq proteins (1): NP_071347* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR001841 | Znf_RING | Domain |
| IPR001870 | B30.2/SPRY | Domain |
| IPR003877 | SPRY_dom | Domain |
| IPR013083 | Znf_RING/FYVE/PHD | Homologous_superfamily |
| IPR013320 | ConA-like_dom_sf | Homologous_superfamily |
| IPR035773 | SPRY_RNF123 | Domain |
| IPR043136 | B30.2/SPRY_sf | Homologous_superfamily |
| IPR045129 | RNF123/RKP/RSPRY1 | Family |
| IPR057987 | TPR_RNF123/RKP | Domain |
Pfam: PF00622, PF13920, PF25576
UniProt features (33 total): binding site 8, strand 5, sequence variant 4, modified residue 3, turn 3, mutagenesis site 2, initiator methionine 1, chain 1, splice variant 1, domain 1, sequence conflict 1, zinc finger region 1, helix 1, region of interest 1
Structure
Experimental structures (PDB)
1 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 2MA6 | SOLUTION NMR |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q5XPI4-F1 | 81.76 | 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.
Ligand- & substrate-binding residues (8): 1277; 1288; 1291; 1254; 1257; 1269; 1271; 1274
Post-translational modifications (3): 2, 675, 683
Mutagenesis-validated functional residues (2):
| Position | Phenotype |
|---|---|
| 968–974 | abolished ability to bind and ubiquitinate nfkb1. |
| 1256 | abolished e3 ubiquitin-protein ligase activity and ability to promote maturation of the nfkb1 component of nf-kappa-b. |
Function
Pathways and Gene Ontology
Reactome pathways
8 pathways
| ID | Pathway |
|---|---|
| R-HSA-5689880 | Ub-specific processing proteases |
| R-HSA-983168 | Antigen processing: Ubiquitination & Proteasome degradation |
| R-HSA-1280218 | Adaptive Immune System |
| R-HSA-168256 | Immune System |
| R-HSA-392499 | Metabolism of proteins |
| R-HSA-5688426 | Deubiquitination |
| R-HSA-597592 | Post-translational protein modification |
| R-HSA-983169 | Class I MHC mediated antigen processing & presentation |
MSigDB gene sets: 156 (showing top):
GSE18804_SPLEEN_MACROPHAGE_VS_COLON_TUMORAL_MACROPHAGE_DN, REACTOME_ADAPTIVE_IMMUNE_SYSTEM, REACTOME_CLASS_I_MHC_MEDIATED_ANTIGEN_PROCESSING_PRESENTATION, REACTOME_ANTIGEN_PROCESSING_UBIQUITINATION_PROTEASOME_DEGRADATION, GOBP_MACROMOLECULE_CATABOLIC_PROCESS, GNF2_ANK1, GOBP_PROTEIN_MATURATION, GOBP_REGULATION_OF_CELL_CYCLE, GNF2_SPTA1, GOBP_POST_TRANSLATIONAL_PROTEIN_MODIFICATION, GOBP_PROTEIN_POLYUBIQUITINATION, GATA1_04, AGCATTA_MIR155, GOBP_PROTEIN_CATABOLIC_PROCESS, PARENT_MTOR_SIGNALING_UP
GO Biological Process (7): protein polyubiquitination (GO:0000209), ubiquitin-dependent protein catabolic process (GO:0006511), obsolete proteolysis involved in protein catabolic process (GO:0051603), protein maturation (GO:0051604), canonical NF-kappaB signal transduction (GO:0007249), protein ubiquitination (GO:0016567), protein catabolic process (GO:0030163)
GO Molecular Function (6): ubiquitin-protein transferase activity (GO:0004842), zinc ion binding (GO:0008270), ubiquitin protein ligase activity (GO:0061630), protein binding (GO:0005515), transferase activity (GO:0016740), metal ion binding (GO:0046872)
GO Cellular Component (3): cytoplasm (GO:0005737), cytosol (GO:0005829), nuclear membrane (GO:0031965)
Reactome top-level categories
Rollup of top-6 pathways:
| Category | Pathways |
|---|---|
| Deubiquitination | 1 |
| Class I MHC mediated antigen processing & presentation | 1 |
| Immune System | 1 |
| Post-translational protein modification | 1 |
| Metabolism of proteins | 1 |
| Adaptive Immune System | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| protein ubiquitination | 2 |
| protein metabolic process | 2 |
| cellular anatomical structure | 2 |
| modification-dependent protein catabolic process | 1 |
| gene expression | 1 |
| intracellular signaling cassette | 1 |
| protein modification by small protein conjugation | 1 |
| macromolecule catabolic process | 1 |
| ubiquitin-like protein transferase activity | 1 |
| transition metal ion binding | 1 |
| ubiquitin-protein transferase activity | 1 |
| ubiquitin-like protein ligase activity | 1 |
| binding | 1 |
| catalytic activity | 1 |
| cation binding | 1 |
| intracellular anatomical structure | 1 |
| cytoplasm | 1 |
| nucleus | 1 |
| nuclear envelope | 1 |
| organelle membrane | 1 |
Protein interactions and networks
STRING
2496 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| RNF123 | UBAC1 | Q9BSL1 | 993 |
| RNF123 | USP19 | O94966 | 894 |
| RNF123 | IP6K1 | Q92551 | 542 |
| RNF123 | CDHR4 | A6H8M9 | 522 |
| RNF123 | WWP1 | Q9H0M0 | 473 |
| RNF123 | SKP2 | Q13309 | 472 |
| RNF123 | CUL3 | Q13618 | 460 |
| RNF123 | SPATA9 | Q9BWV2 | 453 |
| RNF123 | MRPS21 | P82921 | 452 |
| RNF123 | CCDC66 | A2RUB6 | 450 |
| RNF123 | CDKN1B | P46527 | 447 |
| RNF123 | RCHY1 | Q96PM5 | 446 |
| RNF123 | FEM1A | Q9BSK4 | 440 |
| RNF123 | IFIH1 | Q9BYX4 | 437 |
| RNF123 | NTRK3 | Q16288 | 434 |
IntAct
106 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| UBAC1 | RNF123 | psi-mi:“MI:0915”(physical association) | 0.780 |
| UBAC1 | UBB | psi-mi:“MI:0914”(association) | 0.740 |
| RNASE3 | GGPS1 | psi-mi:“MI:0914”(association) | 0.640 |
| ELAC2 | RNF123 | psi-mi:“MI:0914”(association) | 0.640 |
| MAP3K6 | YWHAG | psi-mi:“MI:0914”(association) | 0.640 |
| INSL6 | POTEF | psi-mi:“MI:0914”(association) | 0.530 |
| AKIRIN2 | RGPD3 | psi-mi:“MI:0914”(association) | 0.530 |
| INSL3 | GAPDHS | psi-mi:“MI:0914”(association) | 0.530 |
| RDH12 | NME2P1 | psi-mi:“MI:0914”(association) | 0.530 |
| REG4 | ATE1 | psi-mi:“MI:0914”(association) | 0.530 |
| ZNF277 | RNF123 | psi-mi:“MI:0914”(association) | 0.530 |
| GREM2 | ZZEF1 | psi-mi:“MI:0914”(association) | 0.530 |
| PML | NDUFA2 | psi-mi:“MI:0914”(association) | 0.530 |
| RNF123 | GABARAP | psi-mi:“MI:0407”(direct interaction) | 0.440 |
| GABARAPL1 | RNF123 | psi-mi:“MI:0407”(direct interaction) | 0.440 |
| RNF123 | GABARAPL2 | psi-mi:“MI:0407”(direct interaction) | 0.440 |
| RNF123 | MAP1LC3B | psi-mi:“MI:0407”(direct interaction) | 0.440 |
| RNF123 | MAP1LC3C | psi-mi:“MI:0407”(direct interaction) | 0.440 |
| RNF123 | UBE2W | psi-mi:“MI:0915”(physical association) | 0.370 |
| ORF6 | RNF123 | psi-mi:“MI:0915”(physical association) | 0.370 |
| RNF123 | ENTREP1 | psi-mi:“MI:0915”(physical association) | 0.370 |
| RNF123 | SMAD2 | psi-mi:“MI:0915”(physical association) | 0.370 |
BioGRID (882): RNF123 (Two-hybrid), RNF123 (Affinity Capture-RNA), RNF123 (Affinity Capture-RNA), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS), RNF123 (Affinity Capture-MS)
ESM2 similar proteins: A0A5F9C6I2, A1L3F5, A2BDA5, A3KGS3, A8E4X8, D3ZXK7, F1R7R1, O75129, P21359, P51593, P97526, Q04690, Q1JPG0, Q2PPJ7, Q3SZD5, Q4QQM5, Q4R5A4, Q5RC14, Q5XPI3, Q5XPI4, Q62717, Q66K64, Q6GLR7, Q6NXD8, Q6P4S8, Q6PFH3, Q6VNB8, Q7L4E1, Q7TMY8, Q7Z6Z7, Q80TJ1, Q86UW7, Q8BHR8, Q8BK03, Q8BYR5, Q8CDG3, Q8CF97, Q8CID0, Q8IY22, Q8IZQ1
Diamond homologs: A0A5F9C6I2, A1L252, A2VD92, B0LPN4, D3ZXK7, E9PZQ0, E9Q401, F1LMY4, O94712, P11716, P16960, P21817, P30957, P69566, Q15413, Q19614, Q1LUS8, Q28FM1, Q5R881, Q5XH91, Q5XPI3, Q5XPI4, Q6VN19, Q8BVR6, Q90WU3, Q92736, Q95LP3, Q96DX4, Q96S59, Q9PTY5, Q9VNV3, A1CNW8, A3KMV8, F4HYD7, O74497, P18160, P53076, Q4Z8K6, Q54X16, Q5RBR6
SIGNOR signaling
5 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| Ub:E2 | “up-regulates activity” | RNF123 | ubiquitination |
| RNF123 | “down-regulates quantity by destabilization” | CBX1 | polyubiquitination |
| RNF123 | “down-regulates quantity by destabilization” | CBX5 | polyubiquitination |
| RNF123 | “down-regulates quantity by destabilization” | NFKB1 | polyubiquitination |
| RNF123 | “form complex” | KPC | binding |
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 134 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 |
|---|---|---|---|
| Dengue Virus Genome Translation and Replication | 5 | 18.0× | 5e-03 |
| Antigen processing: Ubiquitination & Proteasome degradation | 11 | 4.7× | 8e-03 |
GO biological processes:
| GO term | Partners | Fold | FDR |
|---|---|---|---|
| autophagosome maturation | 5 | 15.0× | 6e-03 |
| mitophagy | 5 | 13.6× | 7e-03 |
Disease & clinical
Clinical variants and AI predictions
ClinVar
224 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 187 |
| Likely benign | 3 |
| Benign | 1 |
Top pathogenic / likely-pathogenic (0)
SpliceAI
7236 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 3:49691410:T:TA | acceptor_gain | 1.0000 |
| 3:49697214:A:T | donor_gain | 1.0000 |
| 3:49697221:GG:G | donor_gain | 1.0000 |
| 3:49697221:GGGT:G | donor_loss | 1.0000 |
| 3:49697222:GG:G | donor_gain | 1.0000 |
| 3:49697223:G:C | donor_loss | 1.0000 |
| 3:49697223:G:GG | donor_gain | 1.0000 |
| 3:49697224:T:G | donor_loss | 1.0000 |
| 3:49697361:A:AG | acceptor_gain | 1.0000 |
| 3:49697361:AG:A | acceptor_gain | 1.0000 |
| 3:49697362:G:GT | acceptor_gain | 1.0000 |
| 3:49697362:GG:G | acceptor_gain | 1.0000 |
| 3:49697362:GGA:G | acceptor_gain | 1.0000 |
| 3:49697362:GGAC:G | acceptor_gain | 1.0000 |
| 3:49697362:GGACA:G | acceptor_gain | 1.0000 |
| 3:49697454:GGGG:G | donor_gain | 1.0000 |
| 3:49697455:GGG:G | donor_gain | 1.0000 |
| 3:49697455:GGGG:G | donor_gain | 1.0000 |
| 3:49697456:GG:G | donor_gain | 1.0000 |
| 3:49697456:GGG:G | donor_gain | 1.0000 |
| 3:49697457:GG:G | donor_gain | 1.0000 |
| 3:49697458:GTGA:G | donor_loss | 1.0000 |
| 3:49697460:GAGT:G | donor_loss | 1.0000 |
| 3:49697938:AGG:A | donor_loss | 1.0000 |
| 3:49697940:GT:G | donor_loss | 1.0000 |
| 3:49698134:GGAG:G | donor_gain | 1.0000 |
| 3:49698135:GAGG:G | donor_gain | 1.0000 |
| 3:49698435:CCTA:C | acceptor_loss | 1.0000 |
| 3:49698437:TAGGA:T | acceptor_loss | 1.0000 |
| 3:49698438:A:C | acceptor_loss | 1.0000 |
AlphaMissense
8552 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 3:49697903:T:A | F121I | 1.000 |
| 3:49697903:T:C | F121L | 1.000 |
| 3:49697903:T:G | F121V | 1.000 |
| 3:49697904:T:C | F121S | 1.000 |
| 3:49697904:T:G | F121C | 1.000 |
| 3:49697905:T:A | F121L | 1.000 |
| 3:49697905:T:G | F121L | 1.000 |
| 3:49698098:G:C | Q148H | 1.000 |
| 3:49698098:G:T | Q148H | 1.000 |
| 3:49698102:G:C | G150R | 1.000 |
| 3:49698103:G:A | G150D | 1.000 |
| 3:49698105:T:A | W151R | 1.000 |
| 3:49698105:T:C | W151R | 1.000 |
| 3:49698110:C:G | C152W | 1.000 |
| 3:49698126:T:C | F158L | 1.000 |
| 3:49698127:T:C | F158S | 1.000 |
| 3:49698128:C:A | F158L | 1.000 |
| 3:49698128:C:G | F158L | 1.000 |
| 3:49698443:G:A | G163R | 1.000 |
| 3:49698443:G:C | G163R | 1.000 |
| 3:49698443:G:T | G163W | 1.000 |
| 3:49698444:G:A | G163E | 1.000 |
| 3:49698447:T:A | V164D | 1.000 |
| 3:49698449:G:A | G165R | 1.000 |
| 3:49698449:G:C | G165R | 1.000 |
| 3:49698450:G:A | G165E | 1.000 |
| 3:49698450:G:T | G165V | 1.000 |
| 3:49698452:G:C | D166H | 1.000 |
| 3:49698453:A:C | D166A | 1.000 |
| 3:49698453:A:G | D166G | 1.000 |
dbSNP variants (sampled 300 via entrez): RS1000260554 (3:49709862 C>T), RS1000263343 (3:49704055 C>T), RS1000327602 (3:49697835 G>C), RS1000331247 (3:49697016 C>T), RS1000436098 (3:49704515 G>A,C), RS1000480874 (3:49690120 G>A), RS1000568848 (3:49708558 G>A), RS1000575003 (3:49690407 A>G), RS1000577305 (3:49704264 G>A), RS1000599815 (3:49708268 A>G), RS1000783242 (3:49720182 G>A,C), RS1000848134 (3:49721336 C>T), RS1000902363 (3:49714655 C>G), RS1001232497 (3:49711566 T>G), RS1001326641 (3:49699690 A>C)
Disease associations
OMIM: gene MIM:614472 | disease phenotypes:
GenCC curated gene-disease
Mondo (1): hypertrophic cardiomyopathy (MONDO:0005045)
Orphanet (1): Rare hypertrophic cardiomyopathy (Orphanet:217569)
HPO phenotypes
1 total (1 of 1 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0001639 | Hypertrophic cardiomyopathy |
GWAS associations
25 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST003795_3 | Age at first birth | 5.000000e-15 |
| GCST004131_23 | Inflammatory bowel disease | 1.000000e-33 |
| GCST004132_17 | Crohn’s disease | 3.000000e-23 |
| GCST004133_11 | Ulcerative colitis | 8.000000e-20 |
| GCST005951_49 | Body mass index | 1.000000e-08 |
| GCST006044_2 | Age at first birth | 2.000000e-06 |
| GCST006045_5 | Age at first birth | 6.000000e-10 |
| GCST006920_7 | Regular attendance at a gym or sports club | 6.000000e-10 |
| GCST006922_9 | Regular attendance at a religious group | 3.000000e-08 |
| GCST007044_11 | Extremely high intelligence | 4.000000e-08 |
| GCST007559_24 | Sleep duration (short sleep) | 3.000000e-08 |
| GCST007565_126 | Morning person | 3.000000e-18 |
| GCST008512_6 | Multisite chronic pain | 8.000000e-10 |
| GCST008849_2 | Depressive symptoms (binary sum-score) | 7.000000e-09 |
| GCST009523_19 | Household income | 1.000000e-08 |
| GCST009524_240 | Household income (MTAG) | 1.000000e-14 |
| GCST010002_422 | Refractive error | 4.000000e-14 |
| GCST010083_229 | Hemoglobin levels | 6.000000e-12 |
| GCST010083_345 | Hemoglobin levels | 1.000000e-11 |
| GCST010698_80 | Subcortical volume (min-P) | 3.000000e-24 |
| GCST010699_110 | Brain morphology (min-P) | 4.000000e-08 |
| GCST010701_52 | Cortical surface area (MOSTest) | 1.000000e-16 |
| GCST010702_36 | Subcortical volume (MOSTest) | 1.000000e-10 |
| GCST010703_262 | Brain morphology (MOSTest) | 2.000000e-13 |
| GCST90000025_735 | Appendicular lean mass | 6.000000e-10 |
EFO canonical traits (11, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0009101 | age at first birth measurement |
| EFO:0004340 | body mass index |
| EFO:0009592 | social interaction measurement |
| EFO:0004337 | intelligence |
| EFO:0008328 | chronotype measurement |
| EFO:0010100 | multisite chronic pain |
| EFO:0007006 | depressive symptom measurement |
| EFO:0009695 | household income |
| EFO:0004509 | hemoglobin measurement |
| EFO:0004346 | neuroimaging measurement |
| EFO:0004980 | appendicular lean mass |
MeSH disease descriptors (1)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D002312 | Cardiomyopathy, Hypertrophic | C14.280.238.100; C14.280.484.048.750.070.160 |
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 |
|---|---|---|
| Cyclosporine | increases expression, decreases expression | 2 |
| aristolochic acid I | increases expression | 1 |
| FR900359 | increases phosphorylation | 1 |
| triphenyl phosphate | affects expression | 1 |
| alpha-pinene | affects cotreatment, increases oxidation, increases abundance | 1 |
| uranyl acetate | affects expression | 1 |
| manganese chloride | decreases expression, increases abundance | 1 |
| benzo(e)pyrene | increases methylation | 1 |
| aflatoxin B2 | increases methylation | 1 |
| methacrylaldehyde | affects cotreatment, increases oxidation, increases abundance | 1 |
| exemestane | increases expression | 1 |
| di-n-butylphosphoric acid | affects expression | 1 |
| CGP 52608 | affects binding, increases reaction | 1 |
| abrine | increases expression | 1 |
| (+)-JQ1 compound | increases expression | 1 |
| Acetaminophen | decreases expression | 1 |
| Acrolein | affects cotreatment, increases oxidation, increases abundance | 1 |
| Air Pollutants | affects cotreatment, increases abundance, increases oxidation | 1 |
| Benzo(a)pyrene | affects methylation | 1 |
| Cadmium | decreases expression, increases abundance | 1 |
| Doxorubicin | decreases expression | 1 |
| Ivermectin | decreases expression | 1 |
| Manganese | decreases expression, increases abundance | 1 |
| Methapyrilene | increases methylation | 1 |
| Ozone | increases oxidation, increases abundance, affects cotreatment | 1 |
| Smoke | decreases expression | 1 |
| Uranium | affects expression | 1 |
| Valproic Acid | increases methylation | 1 |
| Aflatoxin B1 | increases methylation | 1 |
| Cadmium Chloride | decreases expression, increases abundance | 1 |
Cellosaurus cell lines
7 cell lines: 6 cancer cell line, 1 transformed cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_D8UN | Ubigene HCT 116 RNF123 KO | Cancer cell line | Male |
| CVCL_D9QP | Ubigene HEK293 RNF123 KO | Transformed cell line | Female |
| CVCL_TJ25 | HAP1 RNF123 (-) 1 | Cancer cell line | Male |
| CVCL_TJ26 | HAP1 RNF123 (-) 2 | Cancer cell line | Male |
| CVCL_TJ27 | HAP1 RNF123 (-) 3 | Cancer cell line | Male |
| CVCL_TJ28 | HAP1 RNF123 (-) 4 | Cancer cell line | Male |
| CVCL_TJ29 | HAP1 RNF123 (-) 5 | Cancer cell line | Male |
Clinical trials (associated diseases)
227 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT00879060 | PHASE4 | COMPLETED | Clinical and Therapeutic Implications of Fibrosis in Hypertrophic Cardiomyopathy |
| NCT01721967 | PHASE4 | COMPLETED | Ranolazine for the Treatment of Chest Pain in HCM Patients |
| NCT02948998 | PHASE4 | UNKNOWN | Evaluating the Effect of Spironolactone on Hypertrophic Cardiomyopathy |
| NCT03249272 | PHASE4 | TERMINATED | Microvascular Dysfunction in Nonischemic Cardiomyopathy: Insights From CMR Assessment of Coronary Flow Reserve |
| NCT04133532 | PHASE4 | COMPLETED | Effect of Metoprolol in Post Alcohol Septal Ablation Patients With Hypertrophic Cardiomyopathy |
| NCT06401343 | PHASE4 | RECRUITING | Use of SGLT2i in noHCM With HFpEF |
| NCT07103655 | PHASE4 | NOT_YET_RECRUITING | The Therapeutic Value of Mavacamten in Hypertrophic Cardiomyopathy With Mid-to-Apical Left Ventricular Obstruction |
| NCT07600177 | PHASE4 | RECRUITING | Mavacamten to Aficamten Transition in Patients With Obstructive Hypertrophic Cardiomyopathy |
| NCT00317967 | PHASE3 | COMPLETED | Study to Determine if Atorvastatin Reduces Size and Stiffness of Muscle in the Left Ventricle of the Heart |
| NCT00698074 | PHASE3 | UNKNOWN | Diastolic Ventricular Interaction and the Effects of Biventricular Pacing in Hypertrophic Cardiomyopathy |
| NCT00821353 | PHASE3 | COMPLETED | Antiarrhythmic Therapy Versus Catheter Ablation for Atrial Fibrillation in Hypertrophic Cardiomyopathy |
| NCT02431221 | PHASE3 | WITHDRAWN | Efficacy, Safety, and Tolerability of Perhexiline in Subjects With Hypertrophic Cardiomyopathy and Heart Failure |
| NCT03470545 | PHASE3 | COMPLETED | Clinical Study to Evaluate Mavacamten (MYK-461) in Adults With Symptomatic Obstructive Hypertrophic Cardiomyopathy |
| NCT05174416 | PHASE3 | COMPLETED | A Study to Evaluate the Efficacy and Safety of Mavacamten in Chinese Adults With Symptomatic Obstructive HCM |
| NCT05182658 | PHASE3 | ACTIVE_NOT_RECRUITING | Empagliflozin in Hypertrophic Cardiomyopathy |
| NCT05186818 | PHASE3 | COMPLETED | Phase 3 Trial to Evaluate the Efficacy and Safety of Aficamten Compared to Placebo in Adults With Symptomatic oHCM |
| NCT05767346 | PHASE3 | COMPLETED | Phase 3 Trial to Evaluate the Efficacy and Safety of Aficamten Compared to Metoprolol Succinate in Adults With Symptomatic oHCM |
| NCT06116968 | PHASE3 | COMPLETED | An Open-Label Study of Aficamten for Chinese Patients With Symptomatic oHCM |
| NCT06873828 | PHASE3 | NOT_YET_RECRUITING | Evaluation of the Efficacy and Safety of Wearable ECG (AT-Patch) in Patients With Hypertrophic Cardiomyopathy Requiring 48-Hour Holter MonitoringEvaluation of the Efficacy and Safety of Wearable ECG (AT-Patch) in Patients With Hypertrophic Cardiomyopathy Requiring 48-Hour Holter Monitoring |
| NCT07021976 | PHASE3 | RECRUITING | A Phase III Trial of HRS-1893 in Patients With Obstructive Hypertrophic Cardiomyopathy |
| NCT07023341 | PHASE3 | ACTIVE_NOT_RECRUITING | A Study to Learn More About How Well Aficamten Works in Japanese Participants With Symptomatic Obstructive Hypertrophic Cardiomyopathy |
| NCT07202897 | PHASE3 | NOT_YET_RECRUITING | LA-HCM Study : Rivaroxaban for Antithrombotic Prevention in Hypertrophic Cardiomyopathy Patients With Abnormal Left Atrial Strain. |
| NCT00001631 | PHASE2 | COMPLETED | Study of Blood Flow in Heart Muscle |
| NCT00001894 | PHASE2 | COMPLETED | A Comparison of Two Treatments: Pacemaker and Percutaneous Transluminal Septal Ablation for Hypertrophic Cardiomyopathy |
| NCT00001960 | PHASE2 | COMPLETED | Studying the Effectiveness of Pacemaker Therapy in Children Who Have Thickened Heart Muscle |
| NCT00011076 | PHASE2 | COMPLETED | Pirfenidone to Treat Hypertrophic Cardiomyopathy |
| NCT00035386 | PHASE2 | COMPLETED | Alcohol Septal Ablation in Obstructive Hypertrophic Cardiomyopathy: A Pilot Study |
| NCT00430833 | PHASE2 | UNKNOWN | CHANCE - Candesartan in Hypertrophic Cardiomyopathy |
| NCT00500552 | PHASE2 | COMPLETED | Perhexiline Therapy in Patients With Hypertrophic Cardiomyopathy |
| NCT01150461 | PHASE2 | COMPLETED | Effect of Losartan in Patients With Nonobstructive Hypertrophic Cardiomyopathy |
| NCT01230918 | PHASE2 | TERMINATED | Study to Develop a Non-invasive Marker for Monitoring Myocardial Fibrosis |
| NCT01447654 | PHASE2 | COMPLETED | Inhibition of the Renin Angiotensin System With Losartan in Patients With Hypertrophic Cardiomyopathy |
| NCT01696370 | PHASE2 | UNKNOWN | Trimetazidine Therapy in Hypertrophic Cardiomyopathy |
| NCT01912534 | PHASE2 | COMPLETED | Valsartan for Attenuating Disease Evolution In Early Sarcomeric HCM |
| NCT02590809 | PHASE2 | COMPLETED | Hypertrophic Cardiomyopathy Symptom Release by BX1514M |
| NCT03496168 | PHASE2 | COMPLETED | Extension Study of Mavacamten (MYK-461) in Adults With Symptomatic Obstructive Hypertrophic Cardiomyopathy Previously Enrolled in PIONEER |
| NCT03532802 | PHASE2 | COMPLETED | The Effect of Metoprolol in Patients With Hypertrophic Obstructive Cardiomyopathy. |
| NCT03832660 | PHASE2 | COMPLETED | Sacubitril/Valsartan vs Lifestyle in Hypertrophic Cardiomyopathy |
| NCT04219826 | PHASE2 | COMPLETED | Dose-finding Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of CK-3773274 in Adults With Hypertrophic Cardiomyopathy |
| NCT04426578 | PHASE2 | UNKNOWN | Role of Perhexiline in Hypertrophic Cardiomyopathy |
Related Atlas pages
No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.