Silver-Russell syndrome 1
diseaseOn this page
Also known as SRS1
Summary
Silver-Russell syndrome 1 (MONDO:0020796) is a disease with 8 cohort genes.
At a glance
- Cohort genes: 8
- ClinVar variants: 19
Clinical features
No curated clinical features (Orphanet) for this disease.
Identifiers
Disease identifiers
| Field | Value |
|---|---|
| Canonical name | Silver-Russell syndrome 1 |
| Mondo ID | MONDO:0020796 |
| OMIM | 180860 |
| UMLS | C5393125 |
| MedGen | 1718472 |
| GARD | 0025253 |
| Is cancer (heuristic) | no |
Also known as: SRS1
Data availability: 19 ClinVar variants.
Disease family
Classification path: disease › human disease › disease by body system or component › syndromic disease › Silver-Russell syndrome › Silver-Russell syndrome 1
Related subtypes (10): Russell-silver syndrome, X-linked, Silver-Russell syndrome 3, silver-Russell syndrome due to 7p11.2p13 microduplication, silver-Russell syndrome due to an imprinting defect of 11p15, silver-Russell syndrome due to 11p15 microduplication, silver-Russell syndrome due to maternal uniparental disomy of chromosome 11, silver-Russell syndrome due to maternal uniparental disomy of chromosome 7, Silver-Russell syndrome 5, silver-russell syndrome 2, silver-russell syndrome 4
Genetics & variants
GWAS landscape
No GWAS associations recorded — common-variant (GWAS) studies don’t cover this disease (typical for Mendelian / rare diseases). See the curated gene cohort and Mendelian overlap below.
Variant details and genetic-evidence tiers
ClinVar germline variants
19 retrieved; paginated sample, class counts are floors:
10 pathogenic, 5 uncertain significance, 2 conflicting classifications of pathogenicity, 1 benign, 1 likely pathogenic
| ClinVar | Variant (HGVS) | Gene | Classification | Review |
|---|---|---|---|---|
| 192361 | NM_001122630.2(CDKN1C):c.803G>T (p.Arg268Leu) | CDKN1C | Pathogenic | criteria provided, single submitter |
| 625559 | GRCh37/hg19 11p15.5-15.3(chr11:193146-12643136) | EIF3F | Pathogenic | criteria provided, single submitter |
| 253034 | NM_003483.6(HMGA2):c.193C>T (p.Gln65Ter) | HMGA2 | Pathogenic | criteria provided, single submitter |
| 253035 | NM_003483.6(HMGA2):c.189del (p.Ala64fs) | HMGA2 | Pathogenic | no assertion criteria provided |
| 253036 | NM_000612.6(IGF2):c.78C>G (p.Tyr26Ter) | IGF2 | Pathogenic | criteria provided, single submitter |
| 253298 | NM_000612.6(IGF2):c.157+1_157+2insGC | IGF2 | Pathogenic | no assertion criteria provided |
| 977320 | NM_000218.3(KCNQ1):c.1514+37364_1514+38744del | KCNQ1 | Pathogenic | no assertion criteria provided |
| 253204 | NM_002655.3(PLAG1):c.439del (p.Ser147fs) | LOC126860395 | Pathogenic | no assertion criteria provided |
| 253033 | NM_002655.3(PLAG1):c.1363del (p.Gln455fs) | PLAG1 | Pathogenic | no assertion criteria provided |
| 981209 | GRCh37/hg19 11p15.5-15.4(chr11:210300-8664358)x3 | RIC8A | Pathogenic | no assertion criteria provided |
| 976061 | NM_000612.6(IGF2):c.100G>T (p.Gly34Cys) | IGF2 | Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 2178673 | NM_000612.6(IGF2):c.439G>C (p.Glu147Gln) | IGF2 | Conflicting classifications of pathogenicity | criteria provided, conflicting classifications |
| 710647 | NM_001127598.3(IGF2):c.97C>T (p.Gln33Ter) | IGF2 | Conflicting classifications of pathogenicity | criteria provided, conflicting classifications |
| 1064521 | NM_003836.7(DLK1):c.103G>C (p.Gly35Arg) | DLK1 | Uncertain significance | no assertion criteria provided |
| 2989064 | NM_000612.6(IGF2):c.5G>A (p.Gly2Glu) | IGF2 | Uncertain significance | criteria provided, multiple submitters, no conflicts |
| 3891375 | NM_000612.6(IGF2):c.518C>A (p.Pro173Gln) | IGF2 | Uncertain significance | criteria provided, multiple submitters, no conflicts |
| 3777006 | NR_002728.4(KCNQ1OT1):n.171_224del | KCNQ1 | Uncertain significance | criteria provided, single submitter |
| 3777007 | NM_000218.3(KCNQ1):c.1514+37668_1514+37784del | KCNQ1 | Uncertain significance | criteria provided, single submitter |
| 1064522 | NM_003836.7(DLK1):c.194A>G (p.His65Arg) | DLK1 | Benign | criteria provided, single submitter |
Genes & proteins
Mendelian disease overlap and somatic drivers
GenCC: 0 · Orphanet: 28 · OMIM-shared: 0 · Dual-evidence (GWAS+Mendelian): 0
Orphanet rare-disease linkage (cohort genes)
| Gene | Orphanet ID | Rare disease |
|---|---|---|
| CDKN1C | Orphanet:231120 | Beckwith-Wiedemann syndrome due to CDKN1C mutation |
| CDKN1C | Orphanet:397590 | Silver-Russell syndrome due to a point mutation |
| CDKN1C | Orphanet:436144 | Intrauterine growth restriction-short stature-early adult-onset diabetes syndrome |
| CDKN1C | Orphanet:85173 | IMAGe syndrome |
| DLK1 | Orphanet:254525 | Temple syndrome due to paternal 14q32.2 microdeletion |
| DLK1 | Orphanet:254528 | Kagami-Ogata syndrome due to maternal 14q32.2 microdeletion |
| DLK1 | Orphanet:254531 | Temple syndrome due to paternal 14q32.2 hypomethylation |
| DLK1 | Orphanet:254534 | Kagami-Ogata syndrome due to maternal 14q32.2 hypermethylation |
| DLK1 | Orphanet:650077 | Genetic central precocious puberty in female |
| DLK1 | Orphanet:650097 | Genetic central precocious puberty in male |
| DLK1 | Orphanet:96184 | Temple syndrome due to maternal uniparental disomy of chromosome 14 |
| DLK1 | Orphanet:96334 | Kagami-Ogata syndrome due to paternal uniparental disomy of chromosome 14 |
| HMGA2 | Orphanet:276148 | Benign epithelial tumor of salivary glands |
| HMGA2 | Orphanet:397590 | Silver-Russell syndrome due to a point mutation |
| HMGA2 | Orphanet:94063 | 12q14 microdeletion syndrome |
| HMGA2 | Orphanet:99970 | Dedifferentiated liposarcoma |
| HMGA2 | Orphanet:99971 | Well-differentiated liposarcoma |
| IGF2 | Orphanet:2128 | Isolated hemihyperplasia |
| IGF2 | Orphanet:231117 | Beckwith-Wiedemann syndrome due to imprinting defect of 11p15 |
| IGF2 | Orphanet:231140 | Silver-Russell syndrome due to an imprinting defect of 11p15 |
| IGF2 | Orphanet:231144 | Silver-Russell syndrome due to 11p15 microduplication |
| IGF2 | Orphanet:397590 | Silver-Russell syndrome due to a point mutation |
| KCNQ1 | Orphanet:101016 | Romano-Ward syndrome |
| KCNQ1 | Orphanet:334 | Hereditary atrial fibrillation |
| KCNQ1 | Orphanet:51083 | Congenital short QT syndrome |
| KCNQ1 | Orphanet:90647 | Jervell and Lange-Nielsen syndrome |
| PLAG1 | Orphanet:276148 | Benign epithelial tumor of salivary glands |
| PLAG1 | Orphanet:397590 | Silver-Russell syndrome due to a point mutation |
Cohort genes → proteins
8 cohort genes, 8 distinct canonical proteins.
Evidence partition
| Subset | Genes |
|---|---|
| multi_evidence | 8 |
Cohort genes (full)
| Symbol | HGNC | Ensembl | UniProt | Name | Evidence |
|---|---|---|---|---|---|
| CDKN1C | HGNC:1786 | ENSG00000129757 | P49918 | Cyclin-dependent kinase inhibitor 1C | clinvar |
| DLK1 | HGNC:2907 | ENSG00000185559 | P80370 | Protein delta homolog 1 | clinvar |
| RIC8A | HGNC:29550 | ENSG00000177963 | Q9NPQ8 | Chaperone Ric-8A | clinvar |
| EIF3F | HGNC:3275 | ENSG00000175390 | O00303 | Eukaryotic translation initiation factor 3 subunit F | clinvar |
| HMGA2 | HGNC:5009 | ENSG00000149948 | P52926 | High mobility group protein HMGI-C | clinvar |
| IGF2 | HGNC:5466 | ENSG00000167244 | P01344 | Insulin-like growth factor 2 | clinvar |
| KCNQ1 | HGNC:6294 | ENSG00000053918 | P51787 | Potassium voltage-gated channel subfamily KQT member 1 | clinvar |
| PLAG1 | HGNC:9045 | ENSG00000181690 | Q6DJT9 | Zinc finger protein PLAG1 | clinvar |
Cohort function summary
Lead sentence per gene, UniProt-curated.
| Symbol | Protein name | Function (lead sentence) |
|---|---|---|
| CDKN1C | Cyclin-dependent kinase inhibitor 1C | Potent tight-binding inhibitor of several G1 cyclin/CDK complexes (cyclin E-CDK2, cyclin D2-CDK4, and cyclin A-CDK2) and, to lesser extent, of the mitotic cyclin B-CDC2. |
| DLK1 | Protein delta homolog 1 | May have a role in neuroendocrine differentiation. |
| RIC8A | Chaperone Ric-8A | Chaperone that specifically binds and folds nascent G alpha proteins prior to G protein heterotrimer formation, promoting their stability and activity: folds GNAI1, GNAO1, GNA13 and GNAQ. |
| EIF3F | Eukaryotic translation initiation factor 3 subunit F | Component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiation of protein synthesis. |
| HMGA2 | High mobility group protein HMGI-C | Functions as a transcriptional regulator. |
| IGF2 | Insulin-like growth factor 2 | The insulin-like growth factors possess growth-promoting activity. |
| KCNQ1 | Potassium voltage-gated channel subfamily KQT member 1 | Pore-forming subunit of the voltage-gated potassium (Kv) channel involved in the regulation of cardiomyocyte excitability and important in normal development and functions of myocardium, inner ear, stomach and colon. |
| PLAG1 | Zinc finger protein PLAG1 | Transcription factor whose activation results in up-regulation of target genes, such as IGFII, leading to uncontrolled cell proliferation: when overexpressed in cultured cells, higher proliferation rate and transformation are observed. |
Protein-family classification
Druggable: 1 · Difficult: 1 · Unknown: 6 · Druggable fraction: 0.12
Family distribution
Cohort families vs a genome-wide background (hypergeometric, BH-FDR; fold = observed/expected). Counts kept; sorted by enrichment, so the catch-all Other/Unknown bucket no longer leads.
| Family | Genes | Fold | FDR |
|---|---|---|---|
| Ion channel | 1 | 13.9× | 0.209 |
| Other/Unknown | 6 | 1.3× | 0.352 |
| Transcription factor | 1 | 1.0× | 0.644 |
Per-gene assignment
| Symbol | Family | Druggable? | EC | InterPro (top 3) |
|---|---|---|---|---|
| CDKN1C | Other/Unknown | no | CDI_dom, CDI_dom_sf | |
| DLK1 | Other/Unknown | no | EGF-type_Asp/Asn_hydroxyl_site, EGF, EGF-like_Ca-bd_dom | |
| RIC8A | Other/Unknown | no | Chaperone_Ric-8_A/B, ARM-like, ARM-type_fold | |
| EIF3F | Other/Unknown | no | JAMM/MPN+_dom, EIF3F/CSN6-like_C, eIF3f | |
| HMGA2 | Other/Unknown | no | HMGA, HMGI/Y_DNA-bd_CS, AT_hook_DNA-bd_motif | |
| IGF2 | Other/Unknown | no | IGF2_C, Insulin-like, IGF2 | |
| KCNQ1 | Ion channel | yes | K_chnl_volt-dep_KCNQ, Ion_trans_dom, K_chnl_volt-dep_KCQN1 | |
| PLAG1 | Transcription factor | no | Znf_C2H2_type, Znf_C2H2_sf |
Expression context
Cohort genes with no expression data: 0.
8 cohort genes are a single-cell marker in ≥1 SCXA experiment.
Breadth distribution (Bgee present_calls)
| Bucket | Genes |
|---|---|
| narrow (1-5 tissues) | 0 |
| moderate (6-20) | 0 |
| broad (>20) | 8 |
| unknown | 0 |
Top tissues across cohort
| Tissue | Cohort genes |
|---|---|
| adrenal tissue | 2 |
| placenta | 2 |
| right adrenal gland cortex | 2 |
| stromal cell of endometrium | 2 |
| sural nerve | 2 |
| C1 segment of cervical spinal cord | 1 |
| adrenal cortex | 1 |
| right adrenal gland | 1 |
| granulocyte | 1 |
| ventricular zone | 1 |
| ganglionic eminence | 1 |
| left ovary | 1 |
| primordial germ cell in gonad | 1 |
| embryo | 1 |
| left adrenal gland | 1 |
| left adrenal gland cortex | 1 |
| amniotic fluid | 1 |
| oocyte | 1 |
| secondary oocyte | 1 |
Per-gene tissue summary (top 30)
| Symbol | Bgee breadth | FANTOM5 breadth | SCXA | Top tissues |
|---|---|---|---|---|
| CDKN1C | 134 | ubiquitous | marker | placenta, adrenal tissue, C1 segment of cervical spinal cord |
| DLK1 | 199 | broad | marker | right adrenal gland cortex, right adrenal gland, adrenal cortex |
| RIC8A | 274 | ubiquitous | marker | stromal cell of endometrium, ventricular zone, granulocyte |
| EIF3F | 261 | ubiquitous | marker | primordial germ cell in gonad, ganglionic eminence, left ovary |
| HMGA2 | 149 | ubiquitous | marker | sural nerve, embryo, stromal cell of endometrium |
| IGF2 | 135 | ubiquitous | marker | adrenal tissue, placenta, sural nerve |
| KCNQ1 | 132 | broad | marker | left adrenal gland cortex, left adrenal gland, right adrenal gland cortex |
| PLAG1 | 209 | ubiquitous | marker | secondary oocyte, amniotic fluid, oocyte |
Protein interactions among cohort
Intra-cohort edges: 3.
Hub genes (top 10 by interactor count)
| Symbol | Interactor count |
|---|---|
| IGF2 | 4,294 |
| EIF3F | 4,287 |
| KCNQ1 | 3,235 |
| CDKN1C | 2,275 |
| PLAG1 | 1,482 |
| RIC8A | 1,436 |
| HMGA2 | 219 |
| DLK1 | 186 |
Intra-cohort edges
| A | B | Sources |
|---|---|---|
| CDKN1C | IGF2 | string_interaction |
| CDKN1C | KCNQ1 | string_interaction |
| IGF2 | PLAG1 | string_interaction |
Structural data
PDB: 4 · AlphaFold-only: 4 · No structure: 0
Cohort genes with PDB structures (top 30)
| Symbol | UniProt | PDB entries |
|---|---|---|
| KCNQ1 | P51787 | 28 |
| EIF3F | O00303 | 27 |
| IGF2 | P01344 | 16 |
| DLK1 | P80370 | 1 |
AlphaFold-only cohort genes (top 30 by pLDDT)
| Symbol | UniProt | pLDDT |
|---|---|---|
| RIC8A | Q9NPQ8 | 90.37 |
| HMGA2 | P52926 | 65.46 |
| CDKN1C | P49918 | 63.93 |
| PLAG1 | Q6DJT9 | 56.91 |
Function
Pathway analysis
Distinct Reactome pathways touched by cohort: 31. Enrichment computed across 8 evidence-associated genes (6 with Reactome annotation).
Pathways by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 6 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| Pathway | Cohort genes | Fold | FDR | Sample cohort genes |
|---|---|---|---|---|
| SHC-related events triggered by IGF1R | 1 | 190.3× | 0.037 | IGF2 |
| Phase 3 - rapid repolarisation | 1 | 190.3× | 0.037 | KCNQ1 |
| IRS-related events triggered by IGF1R | 1 | 173.0× | 0.037 | IGF2 |
| Signaling by Type 1 Insulin-like Growth Factor 1 Receptor (IGF1R) | 1 | 158.6× | 0.037 | IGF2 |
| Aberrant regulation of mitotic G1/S transition in cancer due to RB1 defects | 1 | 146.4× | 0.037 | CDKN1C |
| Phase 2 - plateau phase | 1 | 126.9× | 0.037 | KCNQ1 |
| Formation of Senescence-Associated Heterochromatin Foci (SAHF) | 1 | 112.0× | 0.037 | HMGA2 |
| Defective binding of RB1 mutants to E2F1,(E2F2, E2F3) | 1 | 105.7× | 0.037 | CDKN1C |
| Aberrant regulation of mitotic cell cycle due to RB1 defects | 1 | 68.0× | 0.043 | CDKN1C |
| G1 Phase | 1 | 65.6× | 0.043 | CDKN1C |
| Diseases of mitotic cell cycle | 1 | 65.6× | 0.043 | CDKN1C |
| Activated NOTCH1 Transmits Signal to the Nucleus | 1 | 59.5× | 0.043 | DLK1 |
| Voltage gated Potassium channels | 1 | 40.5× | 0.055 | KCNQ1 |
| Cyclin D associated events in G1 | 1 | 38.8× | 0.055 | CDKN1C |
| Formation of the ternary complex, and subsequently, the 43S complex | 1 | 35.9× | 0.055 | EIF3F |
| Translation initiation complex formation | 1 | 31.7× | 0.055 | EIF3F |
| Ribosomal scanning and start codon recognition | 1 | 31.7× | 0.055 | EIF3F |
| Mitotic G1 phase and G1/S transition | 1 | 30.7× | 0.055 | CDKN1C |
| CHD6, CHD7, CHD8, CHD9 subfamily | 1 | 24.7× | 0.065 | IGF2 |
| Potassium Channels | 1 | 22.4× | 0.068 | KCNQ1 |
| Formation of a pool of free 40S subunits | 1 | 18.7× | 0.075 | EIF3F |
| Cardiac conduction | 1 | 18.1× | 0.075 | KCNQ1 |
| L13a-mediated translational silencing of Ceruloplasmin expression | 1 | 16.8× | 0.075 | EIF3F |
| GTP hydrolysis and joining of the 60S ribosomal subunit | 1 | 16.7× | 0.075 | EIF3F |
| Platelet degranulation | 1 | 14.6× | 0.080 | IGF2 |
| Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) | 1 | 14.4× | 0.080 | IGF2 |
| Muscle contraction | 1 | 12.9× | 0.086 | KCNQ1 |
| Cell Cycle, Mitotic | 1 | 8.0× | 0.131 | CDKN1C |
| Neuronal System | 1 | 7.4× | 0.137 | KCNQ1 |
| Cell Cycle | 1 | 6.0× | 0.161 | CDKN1C |
GO biological processes by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 8 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| GO term | Cohort genes | Fold | FDR | Sample cohort genes |
|---|---|---|---|---|
| embryonic placenta morphogenesis | 2 | 842.6× | 3e-04 | CDKN1C, IGF2 |
| genomic imprinting | 2 | 247.8× | 0.001 | CDKN1C, IGF2 |
| multicellular organism growth | 3 | 51.4× | 0.001 | CDKN1C, HMGA2, PLAG1 |
| adrenal gland development | 2 | 168.5× | 0.002 | CDKN1C, HMGA2 |
| positive regulation of multicellular organism growth | 2 | 123.9× | 0.004 | HMGA2, IGF2 |
| gastrin-induced gastric acid secretion | 1 | 2106.5× | 0.008 | KCNQ1 |
| mesodermal-endodermal cell signaling | 1 | 2106.5× | 0.008 | HMGA2 |
| cell-cell adhesion involved in gastrulation | 1 | 2106.5× | 0.008 | RIC8A |
| negative regulation of voltage-gated potassium channel activity | 1 | 2106.5× | 0.008 | KCNQ1 |
| glucose metabolic process | 2 | 63.8× | 0.008 | IGF2, KCNQ1 |
| rhythmic behavior | 1 | 1053.2× | 0.011 | KCNQ1 |
| corticosterone secretion | 1 | 1053.2× | 0.011 | KCNQ1 |
| stomach development | 1 | 1053.2× | 0.011 | KCNQ1 |
| regulation of lens fiber cell differentiation | 1 | 1053.2× | 0.011 | CDKN1C |
| regulation of growth hormone secretion | 1 | 702.2× | 0.015 | HMGA2 |
| regulation of gastric acid secretion | 1 | 702.2× | 0.015 | KCNQ1 |
| regulation of DNA-templated transcription | 3 | 11.8× | 0.015 | HMGA2, IGF2, PLAG1 |
| negative regulation of intracellular steroid hormone receptor signaling pathway | 1 | 526.6× | 0.016 | HMGA2 |
| positive regulation of cell proliferation in bone marrow | 1 | 526.6× | 0.016 | HMGA2 |
| positive regulation of skeletal muscle tissue growth | 1 | 421.3× | 0.016 | IGF2 |
| digestive system development | 1 | 421.3× | 0.016 | CDKN1C |
| regulation of bone remodeling | 1 | 351.1× | 0.016 | DLK1 |
| membrane repolarization during atrial cardiac muscle cell action potential | 1 | 351.1× | 0.016 | KCNQ1 |
| negative regulation of delayed rectifier potassium channel activity | 1 | 351.1× | 0.016 | KCNQ1 |
| iodide transport | 1 | 300.9× | 0.016 | KCNQ1 |
| gland morphogenesis | 1 | 300.9× | 0.016 | PLAG1 |
| regulation of atrial cardiac muscle cell membrane repolarization | 1 | 300.9× | 0.016 | KCNQ1 |
| positive regulation of epithelial cell proliferation involved in lung morphogenesis | 1 | 300.9× | 0.016 | HMGA2 |
| oncogene-induced cell senescence | 1 | 300.9× | 0.016 | HMGA2 |
| mesenchymal cell differentiation | 1 | 263.3× | 0.016 | HMGA2 |
Therapeutics
Drug target analysis
Approved (phase 4): 2 · Phase ≥3: 2 · Phased (≥1): 2 · Undrugged: 6
Druggability breadth: 5 of 8 evidence-associated genes (62%) have a ChEMBL target (buckets above are over the deeply-mined display cohort).
Genes with an approved drug
The molecule shown is one approved compound that hits the gene — not necessarily a drug of choice or one indicated for this disease.
| Symbol | Example approved molecule |
|---|---|
| DLK1 | FEDRATINIB |
| KCNQ1 | AMBRISENTAN |
Top cohort targets by molecule count
| Symbol | Molecules | Max phase |
|---|---|---|
| DLK1 | 15 | 4 |
| KCNQ1 | 15 | 4 |
| CDKN1C | 0 | 0 |
| RIC8A | 0 | 0 |
| EIF3F | 0 | 0 |
| HMGA2 | 0 | 0 |
| IGF2 | 0 | 0 |
| PLAG1 | 0 | 0 |
Drugs targeting cohort genes (top 30)
| Molecule | Max phase | Targets in cohort |
|---|---|---|
| FEDRATINIB | 4 | DLK1 |
| AXITINIB | 4 | DLK1 |
| NERATINIB | 4 | DLK1 |
| BOSUTINIB | 4 | DLK1 |
| SUNITINIB | 4 | DLK1, KCNQ1 |
| CRIZOTINIB | 4 | DLK1 |
| AMBRISENTAN | 4 | KCNQ1 |
| DULOXETINE | 4 | KCNQ1 |
| PALONOSETRON | 4 | KCNQ1 |
| DARUNAVIR | 4 | KCNQ1 |
| DARIFENACIN | 4 | KCNQ1 |
| TOLTERODINE | 4 | KCNQ1 |
| SOLIFENACIN | 4 | KCNQ1 |
| EVEROLIMUS | 4 | KCNQ1 |
| RALTEGRAVIR | 4 | KCNQ1 |
| MARAVIROC | 4 | KCNQ1 |
| ALVIMOPAN | 4 | KCNQ1 |
| NEBIVOLOL | 4 | KCNQ1 |
| NELFINAVIR | 4 | KCNQ1 |
| CEP-1347 | 3 | DLK1 |
| DOVITINIB | 3 | DLK1 |
| LESTAURTINIB | 3 | DLK1 |
| VOLINANSERIN | 3 | KCNQ1 |
| SU-014813 | 2 | DLK1 |
| TOZASERTIB | 2 | DLK1 |
| PELITINIB | 2 | DLK1 |
| KW-2449 | 1 | DLK1 |
| GDC-0134 | 1 | DLK1 |
| AST-487 | 1 | DLK1 |
Bioactivity and enzyme data
Enzyme cohort genes (≥1 EC): 0.
Cohort genes with ChEMBL bioactivity (full, sorted by assay count)
| Symbol | Assays | Type breakdown |
|---|---|---|
| KCNQ1 | 179 | Binding:96, Functional:64, ADMET:14, Toxicity:5 |
| DLK1 | 51 | Binding:51 |
| EIF3F | 4 | Binding:4 |
| RIC8A | 1 | Binding:1 |
Cohort genes with high screening signal
≥100 ChEMBL assays — a studied-ness signal; see Therapeutics for approved-drug status.
| Symbol | ChEMBL assays |
|---|---|
| KCNQ1 | 179 |
Pharmacogenomics
Cohort genes with a PharmGKB record: 8; with CPIC/DPWG dosing guidelines: 0.
No cohort gene has a CPIC/DPWG genotype-guided dosing guideline (PharmGKB).
Chemical tractability of cohort targets
29 approved/phased compounds have measured bioactivity against a cohort gene (and aren’t yet in disease-level trials). This is a research / tractability signal, NOT a therapeutic recommendation — a bioactivity row often reflects off-target or screening binding (e.g. promiscuous kinase inhibitors against a cohort kinase), implying no disease mechanism.
| Compound | Max phase | Cohort target (bioactivity) |
|---|---|---|
| FEDRATINIB | 4 | DLK1 |
| AXITINIB | 4 | DLK1 |
| NERATINIB | 4 | DLK1 |
| BOSUTINIB | 4 | DLK1 |
| SUNITINIB | 4 | DLK1, KCNQ1 |
| CRIZOTINIB | 4 | DLK1 |
| AMBRISENTAN | 4 | KCNQ1 |
| DULOXETINE | 4 | KCNQ1 |
| PALONOSETRON | 4 | KCNQ1 |
| DARUNAVIR | 4 | KCNQ1 |
| DARIFENACIN | 4 | KCNQ1 |
| TOLTERODINE | 4 | KCNQ1 |
| SOLIFENACIN | 4 | KCNQ1 |
| EVEROLIMUS | 4 | KCNQ1 |
| RALTEGRAVIR | 4 | KCNQ1 |
| MARAVIROC | 4 | KCNQ1 |
| ALVIMOPAN | 4 | KCNQ1 |
| NEBIVOLOL | 4 | KCNQ1 |
| NELFINAVIR | 4 | KCNQ1 |
| CEP-1347 | 3 | DLK1 |
| DOVITINIB | 3 | DLK1 |
| LESTAURTINIB | 3 | DLK1 |
| VOLINANSERIN | 3 | KCNQ1 |
| SU-014813 | 2 | DLK1 |
| TOZASERTIB | 2 | DLK1 |
| PELITINIB | 2 | DLK1 |
| KW-2449 | 1 | DLK1 |
| GDC-0134 | 1 | DLK1 |
| AST-487 | 1 | DLK1 |
Druggability pyramid
Cohort genes binned by druggability tier (high → low):
| Tier | Definition | Genes | Symbols |
|---|---|---|---|
| A | Approved (phase 4 drug) | 2 | DLK1, KCNQ1 |
| B | Phased (≥1) drug, not yet approved | 0 | |
| C | Druggable family + PDB, no drug | 0 | |
| D | Druggable family + AlphaFold only, no drug | 0 | |
| E | Difficult family or no structure, no drug | 6 | CDKN1C, RIC8A, EIF3F, HMGA2, IGF2, PLAG1 |
Undrugged target profiles
6 cohort genes are undrugged. Ranked by ‘starting-point quality’ (assay depth + drugged-partner adjacency).
| Symbol | ChEMBL assays | Drugged partners (top 3) |
|---|---|---|
| CDKN1C | 0 | KCNQ1 |
| RIC8A | 1 | — |
| EIF3F | 4 | — |
| HMGA2 | 0 | — |
| IGF2 | 0 | — |
| PLAG1 | 0 | — |
Clinical trials & evidence
Clinical trials
Clinical trials: 0.