Silver-Russell syndrome 1

disease
On 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

FieldValue
Canonical nameSilver-Russell syndrome 1
Mondo IDMONDO:0020796
OMIM180860
UMLSC5393125
MedGen1718472
GARD0025253
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 diseaseSilver-Russell syndromeSilver-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

ClinVarVariant (HGVS)GeneClassificationReview
192361NM_001122630.2(CDKN1C):c.803G>T (p.Arg268Leu)CDKN1CPathogeniccriteria provided, single submitter
625559GRCh37/hg19 11p15.5-15.3(chr11:193146-12643136)EIF3FPathogeniccriteria provided, single submitter
253034NM_003483.6(HMGA2):c.193C>T (p.Gln65Ter)HMGA2Pathogeniccriteria provided, single submitter
253035NM_003483.6(HMGA2):c.189del (p.Ala64fs)HMGA2Pathogenicno assertion criteria provided
253036NM_000612.6(IGF2):c.78C>G (p.Tyr26Ter)IGF2Pathogeniccriteria provided, single submitter
253298NM_000612.6(IGF2):c.157+1_157+2insGCIGF2Pathogenicno assertion criteria provided
977320NM_000218.3(KCNQ1):c.1514+37364_1514+38744delKCNQ1Pathogenicno assertion criteria provided
253204NM_002655.3(PLAG1):c.439del (p.Ser147fs)LOC126860395Pathogenicno assertion criteria provided
253033NM_002655.3(PLAG1):c.1363del (p.Gln455fs)PLAG1Pathogenicno assertion criteria provided
981209GRCh37/hg19 11p15.5-15.4(chr11:210300-8664358)x3RIC8APathogenicno assertion criteria provided
976061NM_000612.6(IGF2):c.100G>T (p.Gly34Cys)IGF2Likely pathogeniccriteria provided, multiple submitters, no conflicts
2178673NM_000612.6(IGF2):c.439G>C (p.Glu147Gln)IGF2Conflicting classifications of pathogenicitycriteria provided, conflicting classifications
710647NM_001127598.3(IGF2):c.97C>T (p.Gln33Ter)IGF2Conflicting classifications of pathogenicitycriteria provided, conflicting classifications
1064521NM_003836.7(DLK1):c.103G>C (p.Gly35Arg)DLK1Uncertain significanceno assertion criteria provided
2989064NM_000612.6(IGF2):c.5G>A (p.Gly2Glu)IGF2Uncertain significancecriteria provided, multiple submitters, no conflicts
3891375NM_000612.6(IGF2):c.518C>A (p.Pro173Gln)IGF2Uncertain significancecriteria provided, multiple submitters, no conflicts
3777006NR_002728.4(KCNQ1OT1):n.171_224delKCNQ1Uncertain significancecriteria provided, single submitter
3777007NM_000218.3(KCNQ1):c.1514+37668_1514+37784delKCNQ1Uncertain significancecriteria provided, single submitter
1064522NM_003836.7(DLK1):c.194A>G (p.His65Arg)DLK1Benigncriteria 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)

GeneOrphanet IDRare disease
CDKN1COrphanet:231120Beckwith-Wiedemann syndrome due to CDKN1C mutation
CDKN1COrphanet:397590Silver-Russell syndrome due to a point mutation
CDKN1COrphanet:436144Intrauterine growth restriction-short stature-early adult-onset diabetes syndrome
CDKN1COrphanet:85173IMAGe syndrome
DLK1Orphanet:254525Temple syndrome due to paternal 14q32.2 microdeletion
DLK1Orphanet:254528Kagami-Ogata syndrome due to maternal 14q32.2 microdeletion
DLK1Orphanet:254531Temple syndrome due to paternal 14q32.2 hypomethylation
DLK1Orphanet:254534Kagami-Ogata syndrome due to maternal 14q32.2 hypermethylation
DLK1Orphanet:650077Genetic central precocious puberty in female
DLK1Orphanet:650097Genetic central precocious puberty in male
DLK1Orphanet:96184Temple syndrome due to maternal uniparental disomy of chromosome 14
DLK1Orphanet:96334Kagami-Ogata syndrome due to paternal uniparental disomy of chromosome 14
HMGA2Orphanet:276148Benign epithelial tumor of salivary glands
HMGA2Orphanet:397590Silver-Russell syndrome due to a point mutation
HMGA2Orphanet:9406312q14 microdeletion syndrome
HMGA2Orphanet:99970Dedifferentiated liposarcoma
HMGA2Orphanet:99971Well-differentiated liposarcoma
IGF2Orphanet:2128Isolated hemihyperplasia
IGF2Orphanet:231117Beckwith-Wiedemann syndrome due to imprinting defect of 11p15
IGF2Orphanet:231140Silver-Russell syndrome due to an imprinting defect of 11p15
IGF2Orphanet:231144Silver-Russell syndrome due to 11p15 microduplication
IGF2Orphanet:397590Silver-Russell syndrome due to a point mutation
KCNQ1Orphanet:101016Romano-Ward syndrome
KCNQ1Orphanet:334Hereditary atrial fibrillation
KCNQ1Orphanet:51083Congenital short QT syndrome
KCNQ1Orphanet:90647Jervell and Lange-Nielsen syndrome
PLAG1Orphanet:276148Benign epithelial tumor of salivary glands
PLAG1Orphanet:397590Silver-Russell syndrome due to a point mutation

Cohort genes → proteins

8 cohort genes, 8 distinct canonical proteins.

Evidence partition

SubsetGenes
multi_evidence8

Cohort genes (full)

SymbolHGNCEnsemblUniProtNameEvidence
CDKN1CHGNC:1786ENSG00000129757P49918Cyclin-dependent kinase inhibitor 1Cclinvar
DLK1HGNC:2907ENSG00000185559P80370Protein delta homolog 1clinvar
RIC8AHGNC:29550ENSG00000177963Q9NPQ8Chaperone Ric-8Aclinvar
EIF3FHGNC:3275ENSG00000175390O00303Eukaryotic translation initiation factor 3 subunit Fclinvar
HMGA2HGNC:5009ENSG00000149948P52926High mobility group protein HMGI-Cclinvar
IGF2HGNC:5466ENSG00000167244P01344Insulin-like growth factor 2clinvar
KCNQ1HGNC:6294ENSG00000053918P51787Potassium voltage-gated channel subfamily KQT member 1clinvar
PLAG1HGNC:9045ENSG00000181690Q6DJT9Zinc finger protein PLAG1clinvar

Cohort function summary

Lead sentence per gene, UniProt-curated.

SymbolProtein nameFunction (lead sentence)
CDKN1CCyclin-dependent kinase inhibitor 1CPotent 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.
DLK1Protein delta homolog 1May have a role in neuroendocrine differentiation.
RIC8AChaperone Ric-8AChaperone 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.
EIF3FEukaryotic translation initiation factor 3 subunit FComponent of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiation of protein synthesis.
HMGA2High mobility group protein HMGI-CFunctions as a transcriptional regulator.
IGF2Insulin-like growth factor 2The insulin-like growth factors possess growth-promoting activity.
KCNQ1Potassium voltage-gated channel subfamily KQT member 1Pore-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.
PLAG1Zinc finger protein PLAG1Transcription 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.

FamilyGenesFoldFDR
Ion channel113.9×0.209
Other/Unknown61.3×0.352
Transcription factor11.0×0.644

Per-gene assignment

SymbolFamilyDruggable?ECInterPro (top 3)
CDKN1COther/UnknownnoCDI_dom, CDI_dom_sf
DLK1Other/UnknownnoEGF-type_Asp/Asn_hydroxyl_site, EGF, EGF-like_Ca-bd_dom
RIC8AOther/UnknownnoChaperone_Ric-8_A/B, ARM-like, ARM-type_fold
EIF3FOther/UnknownnoJAMM/MPN+_dom, EIF3F/CSN6-like_C, eIF3f
HMGA2Other/UnknownnoHMGA, HMGI/Y_DNA-bd_CS, AT_hook_DNA-bd_motif
IGF2Other/UnknownnoIGF2_C, Insulin-like, IGF2
KCNQ1Ion channelyesK_chnl_volt-dep_KCNQ, Ion_trans_dom, K_chnl_volt-dep_KCQN1
PLAG1Transcription factornoZnf_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)

BucketGenes
narrow (1-5 tissues)0
moderate (6-20)0
broad (>20)8
unknown0

Top tissues across cohort

TissueCohort genes
adrenal tissue2
placenta2
right adrenal gland cortex2
stromal cell of endometrium2
sural nerve2
C1 segment of cervical spinal cord1
adrenal cortex1
right adrenal gland1
granulocyte1
ventricular zone1
ganglionic eminence1
left ovary1
primordial germ cell in gonad1
embryo1
left adrenal gland1
left adrenal gland cortex1
amniotic fluid1
oocyte1
secondary oocyte1

Per-gene tissue summary (top 30)

SymbolBgee breadthFANTOM5 breadthSCXATop tissues
CDKN1C134ubiquitousmarkerplacenta, adrenal tissue, C1 segment of cervical spinal cord
DLK1199broadmarkerright adrenal gland cortex, right adrenal gland, adrenal cortex
RIC8A274ubiquitousmarkerstromal cell of endometrium, ventricular zone, granulocyte
EIF3F261ubiquitousmarkerprimordial germ cell in gonad, ganglionic eminence, left ovary
HMGA2149ubiquitousmarkersural nerve, embryo, stromal cell of endometrium
IGF2135ubiquitousmarkeradrenal tissue, placenta, sural nerve
KCNQ1132broadmarkerleft adrenal gland cortex, left adrenal gland, right adrenal gland cortex
PLAG1209ubiquitousmarkersecondary oocyte, amniotic fluid, oocyte

Protein interactions among cohort

Intra-cohort edges: 3.

Hub genes (top 10 by interactor count)

SymbolInteractor count
IGF24,294
EIF3F4,287
KCNQ13,235
CDKN1C2,275
PLAG11,482
RIC8A1,436
HMGA2219
DLK1186

Intra-cohort edges

ABSources
CDKN1CIGF2string_interaction
CDKN1CKCNQ1string_interaction
IGF2PLAG1string_interaction

Structural data

PDB: 4 · AlphaFold-only: 4 · No structure: 0

Cohort genes with PDB structures (top 30)

SymbolUniProtPDB entries
KCNQ1P5178728
EIF3FO0030327
IGF2P0134416
DLK1P803701

AlphaFold-only cohort genes (top 30 by pLDDT)

SymbolUniProtpLDDT
RIC8AQ9NPQ890.37
HMGA2P5292665.46
CDKN1CP4991863.93
PLAG1Q6DJT956.91

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.

PathwayCohort genesFoldFDRSample cohort genes
SHC-related events triggered by IGF1R1190.3×0.037IGF2
Phase 3 - rapid repolarisation1190.3×0.037KCNQ1
IRS-related events triggered by IGF1R1173.0×0.037IGF2
Signaling by Type 1 Insulin-like Growth Factor 1 Receptor (IGF1R)1158.6×0.037IGF2
Aberrant regulation of mitotic G1/S transition in cancer due to RB1 defects1146.4×0.037CDKN1C
Phase 2 - plateau phase1126.9×0.037KCNQ1
Formation of Senescence-Associated Heterochromatin Foci (SAHF)1112.0×0.037HMGA2
Defective binding of RB1 mutants to E2F1,(E2F2, E2F3)1105.7×0.037CDKN1C
Aberrant regulation of mitotic cell cycle due to RB1 defects168.0×0.043CDKN1C
G1 Phase165.6×0.043CDKN1C
Diseases of mitotic cell cycle165.6×0.043CDKN1C
Activated NOTCH1 Transmits Signal to the Nucleus159.5×0.043DLK1
Voltage gated Potassium channels140.5×0.055KCNQ1
Cyclin D associated events in G1138.8×0.055CDKN1C
Formation of the ternary complex, and subsequently, the 43S complex135.9×0.055EIF3F
Translation initiation complex formation131.7×0.055EIF3F
Ribosomal scanning and start codon recognition131.7×0.055EIF3F
Mitotic G1 phase and G1/S transition130.7×0.055CDKN1C
CHD6, CHD7, CHD8, CHD9 subfamily124.7×0.065IGF2
Potassium Channels122.4×0.068KCNQ1
Formation of a pool of free 40S subunits118.7×0.075EIF3F
Cardiac conduction118.1×0.075KCNQ1
L13a-mediated translational silencing of Ceruloplasmin expression116.8×0.075EIF3F
GTP hydrolysis and joining of the 60S ribosomal subunit116.7×0.075EIF3F
Platelet degranulation114.6×0.080IGF2
Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs)114.4×0.080IGF2
Muscle contraction112.9×0.086KCNQ1
Cell Cycle, Mitotic18.0×0.131CDKN1C
Neuronal System17.4×0.137KCNQ1
Cell Cycle16.0×0.161CDKN1C

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 termCohort genesFoldFDRSample cohort genes
embryonic placenta morphogenesis2842.6×3e-04CDKN1C, IGF2
genomic imprinting2247.8×0.001CDKN1C, IGF2
multicellular organism growth351.4×0.001CDKN1C, HMGA2, PLAG1
adrenal gland development2168.5×0.002CDKN1C, HMGA2
positive regulation of multicellular organism growth2123.9×0.004HMGA2, IGF2
gastrin-induced gastric acid secretion12106.5×0.008KCNQ1
mesodermal-endodermal cell signaling12106.5×0.008HMGA2
cell-cell adhesion involved in gastrulation12106.5×0.008RIC8A
negative regulation of voltage-gated potassium channel activity12106.5×0.008KCNQ1
glucose metabolic process263.8×0.008IGF2, KCNQ1
rhythmic behavior11053.2×0.011KCNQ1
corticosterone secretion11053.2×0.011KCNQ1
stomach development11053.2×0.011KCNQ1
regulation of lens fiber cell differentiation11053.2×0.011CDKN1C
regulation of growth hormone secretion1702.2×0.015HMGA2
regulation of gastric acid secretion1702.2×0.015KCNQ1
regulation of DNA-templated transcription311.8×0.015HMGA2, IGF2, PLAG1
negative regulation of intracellular steroid hormone receptor signaling pathway1526.6×0.016HMGA2
positive regulation of cell proliferation in bone marrow1526.6×0.016HMGA2
positive regulation of skeletal muscle tissue growth1421.3×0.016IGF2
digestive system development1421.3×0.016CDKN1C
regulation of bone remodeling1351.1×0.016DLK1
membrane repolarization during atrial cardiac muscle cell action potential1351.1×0.016KCNQ1
negative regulation of delayed rectifier potassium channel activity1351.1×0.016KCNQ1
iodide transport1300.9×0.016KCNQ1
gland morphogenesis1300.9×0.016PLAG1
regulation of atrial cardiac muscle cell membrane repolarization1300.9×0.016KCNQ1
positive regulation of epithelial cell proliferation involved in lung morphogenesis1300.9×0.016HMGA2
oncogene-induced cell senescence1300.9×0.016HMGA2
mesenchymal cell differentiation1263.3×0.016HMGA2

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.

SymbolExample approved molecule
DLK1FEDRATINIB
KCNQ1AMBRISENTAN

Top cohort targets by molecule count

SymbolMoleculesMax phase
DLK1154
KCNQ1154
CDKN1C00
RIC8A00
EIF3F00
HMGA200
IGF200
PLAG100

Drugs targeting cohort genes (top 30)

MoleculeMax phaseTargets in cohort
FEDRATINIB4DLK1
AXITINIB4DLK1
NERATINIB4DLK1
BOSUTINIB4DLK1
SUNITINIB4DLK1, KCNQ1
CRIZOTINIB4DLK1
AMBRISENTAN4KCNQ1
DULOXETINE4KCNQ1
PALONOSETRON4KCNQ1
DARUNAVIR4KCNQ1
DARIFENACIN4KCNQ1
TOLTERODINE4KCNQ1
SOLIFENACIN4KCNQ1
EVEROLIMUS4KCNQ1
RALTEGRAVIR4KCNQ1
MARAVIROC4KCNQ1
ALVIMOPAN4KCNQ1
NEBIVOLOL4KCNQ1
NELFINAVIR4KCNQ1
CEP-13473DLK1
DOVITINIB3DLK1
LESTAURTINIB3DLK1
VOLINANSERIN3KCNQ1
SU-0148132DLK1
TOZASERTIB2DLK1
PELITINIB2DLK1
KW-24491DLK1
GDC-01341DLK1
AST-4871DLK1

Bioactivity and enzyme data

Enzyme cohort genes (≥1 EC): 0.

Cohort genes with ChEMBL bioactivity (full, sorted by assay count)

SymbolAssaysType breakdown
KCNQ1179Binding:96, Functional:64, ADMET:14, Toxicity:5
DLK151Binding:51
EIF3F4Binding:4
RIC8A1Binding:1

Cohort genes with high screening signal

≥100 ChEMBL assays — a studied-ness signal; see Therapeutics for approved-drug status.

SymbolChEMBL assays
KCNQ1179

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.

CompoundMax phaseCohort target (bioactivity)
FEDRATINIB4DLK1
AXITINIB4DLK1
NERATINIB4DLK1
BOSUTINIB4DLK1
SUNITINIB4DLK1, KCNQ1
CRIZOTINIB4DLK1
AMBRISENTAN4KCNQ1
DULOXETINE4KCNQ1
PALONOSETRON4KCNQ1
DARUNAVIR4KCNQ1
DARIFENACIN4KCNQ1
TOLTERODINE4KCNQ1
SOLIFENACIN4KCNQ1
EVEROLIMUS4KCNQ1
RALTEGRAVIR4KCNQ1
MARAVIROC4KCNQ1
ALVIMOPAN4KCNQ1
NEBIVOLOL4KCNQ1
NELFINAVIR4KCNQ1
CEP-13473DLK1
DOVITINIB3DLK1
LESTAURTINIB3DLK1
VOLINANSERIN3KCNQ1
SU-0148132DLK1
TOZASERTIB2DLK1
PELITINIB2DLK1
KW-24491DLK1
GDC-01341DLK1
AST-4871DLK1

Druggability pyramid

Cohort genes binned by druggability tier (high → low):

TierDefinitionGenesSymbols
AApproved (phase 4 drug)2DLK1, KCNQ1
BPhased (≥1) drug, not yet approved0
CDruggable family + PDB, no drug0
DDruggable family + AlphaFold only, no drug0
EDifficult family or no structure, no drug6CDKN1C, RIC8A, EIF3F, HMGA2, IGF2, PLAG1

Undrugged target profiles

6 cohort genes are undrugged. Ranked by ‘starting-point quality’ (assay depth + drugged-partner adjacency).

SymbolChEMBL assaysDrugged partners (top 3)
CDKN1C0KCNQ1
RIC8A1
EIF3F4
HMGA20
IGF20
PLAG10

Clinical trials & evidence

Clinical trials

Clinical trials: 0.