Neurodevelopmental disorder with nonspecific brain abnormalities and with or without seizures

disease
On this page

Also known as NEDBAS

Summary

Neurodevelopmental disorder with nonspecific brain abnormalities and with or without seizures (MONDO:0032877) is a disease caused by DLL1 (GenCC Definitive), with 4 cohort genes.

At a glance

  • Causal gene: DLL1 (GenCC Definitive)
  • Cohort genes: 4
  • ClinVar variants: 95

Clinical features

No curated clinical features (Orphanet) for this disease.

Identifiers

Disease identifiers

FieldValue
Canonical nameneurodevelopmental disorder with nonspecific brain abnormalities and with or without seizures
Mondo IDMONDO:0032877
OMIM618709
UMLSC5231470
MedGen1684757
Is cancer (heuristic)no

Also known as: NEDBAS · neurodevelopmental disorder with nonspecific brain abnormalities and with or without seizures

Data availability: 95 ClinVar variants · 5 GenCC gene-disease records.

Disease family

Classification path: disease › human disease › disease by etiologic mechanism › disease of genetic or genomic mechanism › hereditary diseasehereditary neurological diseaseMendelian neurodevelopmental disorderneurodevelopmental disorder with nonspecific brain abnormalities and with or without seizures

Related subtypes (275): microcephaly and chorioretinopathy, microcephaly with or without chorioretinopathy, lymphedema, or intellectual disability, autosomal dominant primary microcephaly, Prader-Willi syndrome, Smith-Magenis syndrome, microcephalic osteodysplastic primordial dwarfism type I, microcephalic osteodysplastic primordial dwarfism type II, microcephalic osteodysplastic primordial dwarfism, type 3, CK syndrome, orofaciodigital syndrome I, Rett syndrome, Wieacker-Wolff syndrome, Amish lethal microcephaly, cerebral palsy, spastic quadriplegic, 2, Pitt-Hopkins-like syndrome 2, developmental delay with autism spectrum disorder and gait instability, complex cortical dysplasia with other brain malformations 5, AHDC1-related intellectual disability - obstructive sleep apnea - mild dysmorphism syndrome, intellectual disability, autosomal dominant 29, Au-Kline syndrome, cerebellar atrophy, visual impairment, and psychomotor retardation;, neurodevelopmental disorder with or without anomalies of the brain, eye, or heart, cerebral palsy, spastic quadriplegic, 3, Okur-Chung neurodevelopmental syndrome, Harel-Yoon syndrome, neurodevelopmental disorder with hypotonia, seizures, and absent language, alternating hemiplegia of childhood, autosomal recessive primary microcephaly, Rubinstein-Taybi syndrome, neurodevelopmental disorder with cerebellar atrophy and with or without seizures, neurodevelopmental disorder with or without autistic features and/or structural brain abnormalities, neurodevelopmental disorder with hypotonia, microcephaly, and seizures, neurodevelopmental disorder with hypotonia and cerebellar atrophy, with or without seizures, neurodevelopmental disorder and structural brain anomalies with or without seizures and spasticity, neurodevelopmental disorder with language impairment and behavioral abnormalities, neurodevelopmental disorder with seizures, hypotonia, and brain imaging abnormalities, neurodevelopmental disorder with microcephaly, impaired language, epilepsy, and gait abnormalities, neurodevelopmental disorder with dysmorphic facies, sleep disturbance, and brain abnormalities, neurodevelopmental disorder with cardiomyopathy, spasticity, and brain abnormalities, neurodevelopmental disorder with or without early-onset generalized epilepsy, neurodevelopmental disorder with or without autism or seizures, neurodevelopmental disorder with cerebral atrophy and variable facial dysmorphism, neurodevelopmental disorder with dysmorphic facies and variable seizures, squalene synthase deficiency, intellectual developmental disorder and retinitis pigmentosa; IDDRP, neurodevelopmental disorder with impaired intellectual development, hypotonia, and ataxia, Houge-Janssens syndrome 3, neurodevelopmental disorder with central and peripheral motor dysfunction, neurodevelopmental disorder with microcephaly, epilepsy, and hypomyelination, neurodevelopmental disorder with impaired speech and hyperkinetic movements, developmental delay with variable intellectual impairment and behavioral abnormalities, neurodevelopmental disorder with or without variable brain abnormalities; NEDBA, neurodevelopmental disorder with seizures and speech and walking impairment, neurodevelopmental disorder with microcephaly and structural brain anomalies, neurodevelopmental disorder with seizures and nonepileptic hyperkinetic movements, neurodevelopmental disorder with coarse facies and mild distal skeletal abnormalities, neurodevelopmental disorder with visual defects and brain anomalies, neurodevelopmental disorder with ataxia, hypotonia, and microcephaly, neurodevelopmental disorder with cataracts, poor growth, and dysmorphic facies, neurodevelopmental disorder with cerebellar hypoplasia and spasticity, neurodevelopmental disorder with structural brain anomalies and dysmorphic facies, neurodevelopmental disorder with hypotonia and variable intellectual and behavioral abnormalities, neurodevelopmental disorder with microcephaly, arthrogryposis, and structural brain anomalies, neurodevelopmental disorder with spastic quadriplegia, optic atrophy, seizures, and structural brain anomalies, neurodevelopmental disorder with dysmorphic facies and distal skeletal anomalies, neurodevelopmental disorder with absent language and variable seizures, neurodevelopmental disorder with behavioral abnormalities, absent speech, and hypotonia, neurodevelopmental disorder with microcephaly, cortical malformations, and spasticity, neurodevelopmental disorder with brain anomalies and with or without vertebral or cardiac anomalies, Poirier-Bienvenu neurodevelopmental syndrome, neurodevelopmental disorder with epilepsy, spasticity, and brain atrophy, neurodevelopmental disorder with hypotonia and autistic features with or without hyperkinetic movements, neurodevelopmental disorder with hypotonia, neonatal respiratory insufficiency, and thermodysregulation, neurodevelopmental disorder with microcephaly and dysmorphic facies, neurodevelopmental disorder with relative macrocephaly and with or without cardiac or endocrine anomalies, neurodevelopmental disorder with dysmorphic facies, impaired speech, and hypotonia, neurodevelopmental disorder with progressive spasticity and brain white matter abnormalities, neurodevelopmental disorder with speech impairment and dysmorphic facies, neurodevelopmental disorder with alopecia and brain abnormalities, neurodevelopmental disorder with seizures and brain atrophy, neurodevelopmental disorder with microcephaly, seizures, and brain atrophy, Delpire-McNeill syndrome, neurodevelopmental disorder with epilepsy, cataracts, feeding difficulties, and delayed brain myelination, developmental delay and seizures with or without movement abnormalities, Stankiewicz-Isidor syndrome, neurodevelopmental disorder with midbrain and hindbrain malformations, neurodevelopmental disorder with microcephaly, hypotonia, and variable brain anomalies, neurodevelopmental disorder with involuntary movements, neurodevelopmental disorder with hypotonia, neuropathy, and deafness, neurodevelopmental disorder with progressive microcephaly, spasticity, and brain anomalies, encephalopathy, neonatal severe, with lactic acidosis and brain abnormalities, neurodevelopmental disorder with microcephaly, ataxia, and seizures, neurodevelopmental disorder, mitochondrial, with abnormal movements and lactic acidosis, with or without seizures, neurodevelopmental disorder with dysmorphic facies and distal limb anomalies, neurodevelopmental disorder with microcephaly, seizures, and cortical atrophy, neurodevelopmental disorder with severe motor impairment and absent language, neurodevelopmental disorder with ataxic gait, absent speech, and decreased cortical white matter, neurodevelopmental disorder with microcephaly, epilepsy, and brain atrophy, neurodevelopmental disorder with or without seizures and gait abnormalities, neurodevelopmental disorder with movement abnormalities, abnormal gait, and autistic features, neurodevelopmental disorder with poor language and loss of hand skills, neurodevelopmental disorder with microcephaly, cataracts, and renal abnormalities, neurodevelopmental disorder with spastic quadriplegia and brain abnormalities with or without seizures, neurodevelopmental disorder with spasticity and poor growth, neurodevelopmental disorder with regression, abnormal movements, loss of speech, and seizures, neurodevelopmental disorder with epilepsy and hypoplasia of the corpus callosum, FOXG1 disorder, genetic developmental and epileptic encephalopathy, X-linked complex neurodevelopmental disorder, PPP2R1A-related intellectual disability, intellectual disability, autosomal dominant, CACNA1A-related complex neurodevelopmental disorder, X-linked intellectual disability, PAX5-related B lymphopenia and autism spectrum disorder, neurodevelopmental disorder with microcephaly, impaired language, and gait abnormalities, KCNH1 associated disorder, AFG2B-related complex neurodevelopmental disorder with motor features and hearing loss, intellectual disability, autosomal recessive, FAT4-related neurodevelopmental disorder, SOX11-related complex neurodevelopmental disorder with or without congenital anomalies, microcephaly with lissencephaly and/or hydranencephaly, MYH10-related neurodevelopmental disorder with congenital anomalies, CNOT9-related developmental disorder with seizures, HMGB1-related brachyphalangy, polydactyly and tibial aplasia syndrome, ATXN7L3-related developmental delay, hypotonia and facial dysmorphism, DIP2C-related developmental disorder with speech delay, EPB41L3-related developmental disorder with delayed myelination and seizures, GABRA4-related neurodevelopmental disorder with seizures, GABRD-related neurodevelopmental disorder with epilepsy, KCNK3-related developmental delay with sleep apnea, RFX3-related neurodevelopmental disorder with autism and other behavioural abnormalities, RFX4-related neurodevelopmental disorder with autism and other behavioural abnormalities, KDM2B-related neurodevelopmental disorder, TRA2B-related neurodevelopmental disorder, WDR5-related neurodevelopmental disorder, ARF3-related neurodevelopmental disorder, CBX1-related neurodevelopmental disorder, DDX17-related neurodevelopmental disorder, FEZF2-related neurodevelopmental disorder, HDAC3-related neurodevelopmental disorder, DEAF1-associated neurodevelopmental disorder, SYNCRIP-related neurodevelopmental disorder, HNRNPC-related neurodevelopmental disorder, NACC1-related neurodevelopmental disorder with epilepsy, cataracts and episodic irritability, SETD2-related neurodevelopmental disorder without or with macrocephaly/overgrowth, neurodevelopmental disorder with gait disturbance, dysmorphic facies, and behavioral abnormalities, X-linked, Alzahrani-Kuwahara syndrome, neurodevelopmental disorder with spasticity, cataracts, and cerebellar hypoplasia, neurodevelopmental disorder with dysmorphic facies and cerebellar hypoplasia, Hiatt-Neu-Cooper neurodevelopmental syndrome, neurodevelopmental disorder with seizures and gingival overgrowth, neurodevelopmental disorder with cerebellar atrophy and motor dysfunction, neurodevelopmental disorder with infantile epileptic spasms, neurodevelopmental disorder with hypotonia, facial dysmorphism, and brain abnormalities, neurodevelopmental disorder with motor and speech delay and behavioral abnormalities, neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, neurodevelopmental disorder with hypotonia and dysmorphic facies, neurodevelopmental disorder with hypotonia and brain abnormalities, neurodevelopmental disorder with impaired language and ataxia and with or without seizures, neurodevelopmental disorder with hearing loss and spasticity, neurodevelopmental disorder with hypotonia and gross motor and speech delay, neurodevelopmental disorder with hyperkinetic movements and dyskinesia, neurodevelopmental disorder, nonprogressive, with spasticity and transient opisthotonus, Marbach-Schaaf neurodevelopmental syndrome, neurodevelopmental disorder with microcephaly, seizures, and neonatal cholestasis, Brunet-Wagner neurodevelopmental syndrome, Ferguson-Bonni neurodevelopmental syndrome, neurodevelopmental disorder with or without variable movement or behavioral abnormalities, neurodevelopmental disorder with central hypotonia and dysmorphic facies, neurodevelopmental disorder with neuromuscular and skeletal abnormalities, Chilton-Okur-Chung neurodevelopmental syndrome, neurodevelopmental disorder with hypotonia, impaired speech, and behavioral abnormalities, parenti-mignot neurodevelopmental syndrome, neurodevelopmental disorder with microcephaly, hypotonia, nystagmus, and seizures, Dentici-Novelli neurodevelopmental syndrome, neurodevelopmental disorder with poor growth and skeletal anomalies, neurodevelopmental disorder with language delay and seizures, neurodevelopmental disorder with dystonia and seizures, Dworschak-Punetha neurodevelopmental syndrome, neurodevelopmental disorder with epilepsy and brain atrophy, neurodevelopmental disorder with severe motor impairment, absent language, cerebral hypomyelination, and brain atrophy, neurodevelopmental disorder with speech delay and variable ocular anomalies, neurodevelopmental disorder with intention tremor, pyramidal signs, dyspraxia, and ocular anomalies, neurodevelopmental disorder with spasticity, seizures, and brain abnormalities, neurodevelopmental disorder with microcephaly, movement abnormalities, and seizures, neurodevelopmental disorder with seizures, microcephaly, and brain abnormalities, neurodevelopmental disorder with microcephaly, short stature, and speech delay, neurodevelopmental disorder with hypotonia, language delay, and skeletal defects with or without seizures, neurodevelopmental disorder with microcephaly, cerebral atrophy, and visual impairment, neurodevelopmental disorder with short stature, prominent forehead, and feeding difficulties, neurodevelopmental disorder with dysmorphic facies and skeletal and brain abnormalities, neurodevelopmental disorder with facial dysmorphism, absent language, and pseudo-pelger-huet anomaly, neurodevelopmental disorder with craniofacial dysmorphism and skeletal defects, neurodevelopmental disorder with eye movement abnormalities and ataxia, neurodevelopmental disorder with growth retardation, dysmorphic facies, and corpus callosum abnormalities, neurodevelopmental disorder with speech impairment and with or without seizures, neurodevelopmental disorder with hypotonia, dysmorphic facies, and skin abnormalities, neurodevelopmental disorder with poor growth, large ears, and dysmorphic facies, neurodevelopmental disorder with dysmorphic facies and ischiopubic hypoplasia, neurodevelopmental disorder with hypotonia, dysmorphic facies, and skeletal anomalies, with or without seizures, neurodevelopmental disorder with poor growth and behavioral abnormalities, neurodevelopmental disorder with seizures, spasticity, and complete or partial agenesis of the corpus callosum, neurodevelopmental disorder with absent speech and movement and behavioral abnormalities, neurodevelopmental disorder with language delay and behavioral abnormalities, with or without seizures, neurodevelopmental disorder with microcephaly and speech delay, with or without brain abnormalities, neurodevelopmental disorder with intracranial hemorrhage, seizures, and spasticity, neurodevelopmental disorder with motor and language delay, ocular defects, and brain abnormalities, neurodevelopmental disorder with microcephaly and movement abnormalities, neurodevelopmental disorder with hypotonia and speech delay, with or without seizures, neurodevelopmental disorder with dysmorphic facies and behavioral abnormalities, neurodevelopmental disorder with impaired language, behavioral abnormalities, and dysmorphic facies, neurodevelopmental disorder with language delay and variable cognitive abnormalities, neurodevelopmental disorder with motor regression, progressive spastic paraplegia, and oromotor dysfunction, Hao-Fountain syndrome due to USP7 mutation, neurodevelopmental disorder with motor abnormalities, seizures, and facial dysmorphism, neurodevelopmental disorder with hyperkinetic movements, seizures, and structural brain abnormalities, neurodevelopmental disorder with hypotonia and characteristic brain abnormalities, neurodevelopmental disorder with early-onset parkinsonism and behavioral abnormalities, Jeffries-Lakhani neurodevelopmental syndrome, neurodevelopmental disorder with language impairment, autism, and attention deficit-hyperactivity disorder, neurodevelopmental disorder plus optic atrophy, neurodevelopmental disorder with progressive movement abnormalities, aplasia cutis-enamel dysplasia syndrome, neurodevelopmental disorder with hypotonia and seizures, El Hayek-Chahrour neurodevelopmental disorder, neurodevelopmental disorder with hypotonia, feeding difficulties, facial dysmorphism, and brain abnormalities, neurodevelopmental disorder with hypotonia, brain anomalies, distinctive facies, and absent language, otofacial neurodevelopmental syndrome, neurodevelopmental disorder with characteristic facial and ectodermal features and tetraparesis 1, Kariminejad neurodevelopmental syndrome, Karayol-Borroto-Haghshenas neurodevelopmental syndrome, neurodevelopmental disorder with dysmorphic facies, absent speech and ambulation, and brain abnormalities, neurodevelopmental disorder with variable familial hypercholanemia, intellectual developmental disorder with polymicrogyria and seizures, neurodevelopmental disorder with speech or visual impairment and brain hypomyelination, neurodevelopmental disorder with microcephaly, absent speech, and hypotonia, neurodevelopmental disorder with hypotonia, poor growth, dysmorphic facies, and agammaglobulinemia, neurodevelopmental disorder with progressive spasticity and brain abnormalities, neurodevelopmental disorder with thin corpus callosum, hypotonia, and absent language, neurodevelopmental disorder with white matter abnormalities and gait disturbance, neurodevelopmental disorder with poor growth, seizures, and brain abnormalities, neurodevelopmental disorder with poor or absent speech, dysmorphic facies, and behavioral abnormalities, neurodevelopmental disorder with ataxia and brain abnormalities, neurodevelopmental disorder with dysmorphic facies, brain anomalies, and seizures, Li-Takada-Miyake syndrome, neurodevelopmental disorder with behavioral, ear, and skeletal abnormalities, Nil-Deshwar neurodevelopmental syndrome, Popov-Chang syndrome, neurodevelopmental disorder with achalasia, polyneuropathy, and alacrima, Dursun-Ozgul neurodevelopmental syndrome, neurodevelopmental disorder with growth impairment, quadriparesis, and poor or absent speech, neurodevelopmental disorder with speech delay and behavioral abnormalities, Harel-Tora neurodevelopmental syndrome, neurocardiorenal malformation syndrome, neurodevelopmental disorder with behavioral abnormalities and childhood-onset spastic paraplegia, neurodevelopmental disorder with early-onset seizures, facial dysmorphism, and behavioral abnormalities, neurodevelopmental disorder with structural brain abnormalities and craniofacial abnormalities, Ramond-Elliott neurodevelopmental syndrome, microcephaly, progressive, with simplified gyral pattern and cerebellar hypoplasia, neurodevelopmental disorder with hypotonia, epilepsy, and absent speech, neurodevelopmental disorder with speech delay, movement abnormalities, and seizures, neurodevelopmental disorder with spasticity, thin corpus callosum, and decreased brain white matter, neurodevelopmental disorder with congenital cardiac defects and variable renal and ocular abnormalities, neurodevelopmental disorder with seizures, hypotonia, and variable spasticity, PIP5K1C-related neurodevelopmental disorder, KCND2-related neurodevelopmental disorder with or without seizures, PRPF19-related neurodevelopmental disorder, CTR9-related neurodevelopmental disorder, CAMK2D-related neurodevelopmental disorder and dilated cardiomyopathy, PPFIA3-related neurodevelopmental disorder, dyneinopathy, MYCBP2-related developmental delay with corpus callosum defects, GRIN-related complex neurodevelopmental disorder, RNU5B-1 related neurodevelopmental disorder with seizures and joint laxity, TSEN2-related neurodevelopmental disorder with or without thrombotic microangiopathy

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

95 retrieved; paginated sample, class counts are floors:

47 uncertain significance, 20 pathogenic, 15 likely pathogenic, 6 conflicting classifications of pathogenicity, 4 pathogenic/likely pathogenic, 2 likely benign, 1 benign

ClinVarVariant (HGVS)GeneClassificationReview
2579276GRCh38/hg38 6q26-27(chr6:161349282-170584790)x1AFDN-DTPathogeniccriteria provided, single submitter
1327458NM_005618.4(DLL1):c.1250-1G>ADLL1Pathogeniccriteria provided, single submitter
1676790NM_005618.4(DLL1):c.168C>A (p.Cys56Ter)DLL1Pathogeniccriteria provided, single submitter
1709800NM_005618.4(DLL1):c.1253_1259del (p.Ala418fs)DLL1Pathogeniccriteria provided, single submitter
1802546NM_005618.4(DLL1):c.1538dup (p.Pro514fs)DLL1Pathogeniccriteria provided, single submitter
1966157NM_005618.4(DLL1):c.845del (p.Gly282fs)DLL1Pathogenic/Likely pathogeniccriteria provided, multiple submitters, no conflicts
2443996NM_005618.4(DLL1):c.351+1G>TDLL1Pathogenicno assertion criteria provided
2503482NM_005618.4(DLL1):c.1811_1814del (p.Val604fs)DLL1Pathogenic/Likely pathogeniccriteria provided, multiple submitters, no conflicts
2627420NM_005618.4(DLL1):c.162C>A (p.Cys54Ter)DLL1Pathogeniccriteria provided, single submitter
3254980NM_005618.4(DLL1):c.1077C>G (p.Tyr359Ter)DLL1Pathogeniccriteria provided, single submitter
3359007NM_005618.4(DLL1):c.552C>G (p.Tyr184Ter)DLL1Pathogeniccriteria provided, single submitter
3382651NM_005618.4(DLL1):c.883del (p.His295fs)DLL1Pathogeniccriteria provided, single submitter
3383967NM_005618.4(DLL1):c.181del (p.Arg61fs)DLL1Pathogeniccriteria provided, single submitter
3384100NM_005618.4(DLL1):c.635_636delinsAA (p.Cys212Ter)DLL1Pathogeniccriteria provided, single submitter
4075812NM_005618.4(DLL1):c.984del (p.Ile329fs)DLL1Pathogenicno assertion criteria provided
4083506GRCh37/hg19 6q27(chr6:170591962-170893669)x1DLL1Pathogeniccriteria provided, single submitter
4294392NM_005618.4(DLL1):c.1143C>A (p.Cys381Ter)DLL1Pathogeniccriteria provided, single submitter
800560NM_005618.4(DLL1):c.1492G>T (p.Glu498Ter)DLL1Pathogenicno assertion criteria provided
800561NM_005618.4(DLL1):c.231C>A (p.Cys77Ter)DLL1Pathogenicno assertion criteria provided
800562NM_005618.4(DLL1):c.1525C>T (p.Arg509Ter)DLL1Pathogeniccriteria provided, multiple submitters, no conflicts
800563NM_005618.4(DLL1):c.2013_2014del (p.Glu673fs)DLL1Pathogenic/Likely pathogeniccriteria provided, multiple submitters, no conflicts
800564NM_005618.4(DLL1):c.54+1G>ADLL1Pathogenicno assertion criteria provided
982392NM_005618.4(DLL1):c.152del (p.Pro51fs)DLL1Pathogeniccriteria provided, single submitter
985068NM_005618.4(DLL1):c.2044_2045del (p.Arg682fs)DLL1Pathogenic/Likely pathogeniccriteria provided, multiple submitters, no conflicts
1330196GRCh37/hg19 12q24.22-24.33(chr12:117461902-133841395)x3AACSLikely pathogeniccriteria provided, single submitter
1334557NM_005618.4(DLL1):c.1574dup (p.Ala528fs)DLL1Likely pathogeniccriteria provided, multiple submitters, no conflicts
1676438NM_005618.4(DLL1):c.76G>T (p.Glu26Ter)DLL1Likely pathogeniccriteria provided, single submitter
1992340NM_005618.4(DLL1):c.235T>G (p.Tyr79Asp)DLL1Likely pathogeniccriteria provided, single submitter
2443330NM_005618.4(DLL1):c.1013del (p.Lys338fs)DLL1Likely pathogeniccriteria provided, single submitter
2506472NM_005618.4(DLL1):c.838dup (p.Trp280fs)DLL1Likely pathogeniccriteria provided, single submitter

Genes & proteins

Mendelian disease overlap and somatic drivers

GenCC: 6 · Orphanet: 7 · OMIM-shared: 0 · Dual-evidence (GWAS+Mendelian): 0

GenCC gene–disease validity (cohort genes)

the Disease column is the GenCC-asserted condition — a cohort gene’s strongest validity may be for a related predisposition syndrome.

GeneClassificationInheritanceDiseaseRecords
DLL1DefinitiveAutosomal dominantneurodevelopmental disorder with nonspecific brain abnormalities and with or without seizures6

Orphanet rare-disease linkage (cohort genes)

GeneOrphanet IDRare disease
DLL1Orphanet:178469Autosomal dominant non-syndromic intellectual disability
DLL1Orphanet:220386Semilobar holoprosencephaly
DLL1Orphanet:280195Septopreoptic holoprosencephaly
DLL1Orphanet:280200Microform holoprosencephaly
DLL1Orphanet:93924Lobar holoprosencephaly
DLL1Orphanet:93925Alobar holoprosencephaly
DLL1Orphanet:93926Midline interhemispheric variant of holoprosencephaly

Cohort genes → proteins

4 cohort genes, 3 distinct canonical proteins.

Evidence partition

SubsetGenes
multi_evidence4

Cohort genes (full)

SymbolHGNCEnsemblUniProtNameEvidence
DLL1HGNC:2908ENSG00000198719O00548Delta-like protein 1gencc,clinvar
AFDN-DTHGNC:21236ENSG00000198221AFDN divergent transcriptclinvar
AACSHGNC:21298ENSG00000081760Q86V21Acetoacetyl-CoA synthetaseclinvar
TENM4HGNC:29945ENSG00000149256Q6N022Teneurin-4clinvar

Cohort function summary

Lead sentence per gene, UniProt-curated.

SymbolProtein nameFunction (lead sentence)
DLL1Delta-like protein 1Transmembrane ligand protein of NOTCH1, NOTCH2 and NOTCH3 receptors that binds the extracellular domain (ECD) of Notch receptor in a cis and trans fashion manner.
AACSAcetoacetyl-CoA synthetaseConverts acetoacetate to acetoacetyl-CoA in the cytosol.
TENM4Teneurin-4Involved in neural development, regulating the establishment of proper connectivity within the nervous system.

Protein-family classification

Druggable: 0 · Difficult: 0 · Unknown: 4 · Druggable fraction: 0.0

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
Other/Unknown41.8×0.097

Per-gene assignment

SymbolFamilyDruggable?ECInterPro (top 3)
DLL1Other/UnknownnoEGF-type_Asp/Asn_hydroxyl_site, EGF, DSL
AFDN-DTOther/Unknownno
AACSOther/UnknownnoAMP-dep_synth/lig_dom, Acac_CoA_synth, AMP-binding_CS
TENM4Other/UnknownnoEGF, YD, CarboxyPept-like_regulatory

Expression context

Cohort genes with no expression data: 0.

3 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)4
unknown0

Top tissues across cohort

TissueCohort genes
ganglionic eminence2
skin of abdomen1
spleen1
ventricular zone1
buccal mucosa cell1
cortical plate1
gingiva1
gingival epithelium1
parotid gland1
hair follicle1
lateral nuclear group of thalamus1

Per-gene tissue summary (top 30)

SymbolBgee breadthFANTOM5 breadthSCXATop tissues
DLL1132broadmarkerspleen, ventricular zone, skin of abdomen
AFDN-DT199tissue_specificyescortical plate, ganglionic eminence, buccal mucosa cell
AACS278ubiquitousmarkerparotid gland, gingival epithelium, gingiva
TENM4228ubiquitousmarkerhair follicle, ganglionic eminence, lateral nuclear group of thalamus

Protein interactions among cohort

Intra-cohort edges: 0.

Hub genes (top 10 by interactor count)

SymbolInteractor count
DLL13,147
AACS2,311
TENM41,409
AFDN-DT0

Structural data

PDB: 2 · AlphaFold-only: 1 · No structure: 1

Cohort genes with PDB structures (top 30)

SymbolUniProtPDB entries
TENM4Q6N0224
DLL1O005481

AlphaFold-only cohort genes (top 30 by pLDDT)

SymbolUniProtpLDDT
AACSQ86V2192.09

Function

Pathway analysis

Distinct Reactome pathways touched by cohort: 16. Enrichment computed across 4 evidence-associated genes (2 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 2 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.

PathwayCohort genesFoldFDRSample cohort genes
Ketone body metabolism1951.7×0.006AACS
Constitutive Signaling by NOTCH1 t(7;9)(NOTCH1:M1580_K2555) Translocation Mutant1815.7×0.006DLL1
Synthesis of Ketone Bodies1713.8×0.006AACS
MECP2 regulates transcription of neuronal ligands1713.8×0.006DLL1
Nephron development1439.2×0.007DLL1
Constitutive Signaling by NOTCH1 HD Domain Mutants1380.7×0.007DLL1
NOTCH3 Activation and Transmission of Signal to the Nucleus1237.9×0.009DLL1
NOTCH2 Activation and Transmission of Signal to the Nucleus1219.6×0.009DLL1
Formation of paraxial mesoderm1203.9×0.009DLL1
Activated NOTCH1 Transmits Signal to the Nucleus1178.4×0.009DLL1
Differentiation of Keratinocytes in Interfollicular Epidermis in Mammalian Skin1139.3×0.010DLL1
Somitogenesis1116.5×0.011DLL1
Constitutive Signaling by NOTCH1 PEST Domain Mutants198.5×0.012DLL1
Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants198.5×0.012DLL1
Metabolism of lipids115.8×0.067AACS
Metabolism15.8×0.165AACS

GO biological processes by enrichment

Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 3 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.

GO termCohort genesFoldFDRSample cohort genes
cerebellar molecular layer formation15617.3×0.003DLL1
regulation of skeletal muscle tissue growth15617.3×0.003DLL1
Notch signaling pathway involved in arterial endothelial cell fate commitment15617.3×0.003DLL1
cerebellar Purkinje cell layer structural organization12808.7×0.003DLL1
negative regulation of epidermal cell differentiation12808.7×0.003DLL1
cardiac cell fate specification12808.7×0.003TENM4
loop of Henle development12808.7×0.003DLL1
endothelial tip cell fate specification12808.7×0.003DLL1
lateral inhibition11872.4×0.004DLL1
inhibition of neuroepithelial cell differentiation11404.3×0.004DLL1
compartment pattern specification11404.3×0.004DLL1
negative regulation of inner ear auditory receptor cell differentiation11404.3×0.004DLL1
skin epidermis development11404.3×0.004DLL1
regulation of vascular endothelial growth factor signaling pathway11404.3×0.004DLL1
somite specification11123.5×0.004DLL1
positive regulation of skeletal muscle tissue growth11123.5×0.004DLL1
proximal tubule development11123.5×0.004DLL1
regulation of somitogenesis1936.2×0.004DLL1
regulation of vascular endothelial growth factor receptor signaling pathway1936.2×0.004DLL1
ketone body biosynthetic process1936.2×0.004AACS
skeletal muscle tissue growth1936.2×0.004DLL1
central nervous system myelin formation1802.5×0.004TENM4
positive regulation of gastrulation1802.5×0.004TENM4
negative regulation of cardiac muscle cell differentiation1802.5×0.004DLL1
marginal zone B cell differentiation1624.1×0.004DLL1
negative regulation of glial cell apoptotic process1624.1×0.004DLL1
retina morphogenesis in camera-type eye1624.1×0.004DLL1
nephron development1624.1×0.004DLL1
neuroepithelial cell differentiation1510.7×0.005DLL1
type B pancreatic cell development1432.1×0.006DLL1

Therapeutics

Drug target analysis

Approved (phase 4): 0 · Phase ≥3: 0 · Phased (≥1): 0 · Undrugged: 4

Druggability breadth: 0 of 4 evidence-associated genes (0%) have a ChEMBL target (buckets above are over the deeply-mined display cohort).

Top cohort targets by molecule count

SymbolMoleculesMax phase
DLL100
AFDN-DT00
AACS00
TENM400

Bioactivity and enzyme data

Enzyme cohort genes (≥1 EC): 0.

Pharmacogenomics

Cohort genes with a PharmGKB record: 3; with CPIC/DPWG dosing guidelines: 0.

No cohort gene has a CPIC/DPWG genotype-guided dosing guideline (PharmGKB).

Chemical tractability of cohort targets

0 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.

Druggability pyramid

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

TierDefinitionGenesSymbols
AApproved (phase 4 drug)0
BPhased (≥1) drug, not yet approved0
CDruggable family + PDB, no drug0
DDruggable family + AlphaFold only, no drug0
EDifficult family or no structure, no drug4DLL1, AFDN-DT, AACS, TENM4

Undrugged target profiles

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

SymbolChEMBL assaysDrugged partners (top 3)
DLL10
AFDN-DT0
AACS0
TENM40

Clinical trials & evidence

Clinical trials

Clinical trials: 0.