ADNP

protein-coding

activity dependent neuroprotector homeobox, the group of ZF class homeoboxes and pseudogenes

Gene summary

Vasoactive intestinal peptide is a neuroprotective factor that has a stimulatory effect on the growth of some tumor cells and an inhibitory effect on others. This gene encodes a protein that is upregulated by vasoactive intestinal peptide and may be involved in its stimulatory effect on certain tumor cells. The encoded protein contains one homeobox and nine zinc finger domains, suggesting that it functions as a transcription factor. This gene is also upregulated in normal proliferative tissues. Finally, the encoded protein may increase the viability of certain cell types through modulation of p53 activity. Alternatively spliced transcript variants encoding the same protein have been described. [provided by RefSeq, Jul 2008]

MANE transcript

NM_001282531.3

Inheritance

AD

ClinVar variants

P:184U:412B:328

Top phenotype

Helsmoortel-van der Aa syndrome

gnomAD constraint

pLI —, LoF o/e 0.03

Max pathogenic AF

—

Genomic locus

chr20:50,888,916-50,931,437

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~42.5 kb
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GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorderSTRONG

Inheritance Pattern: AD

Disease ID:MONDO:0014379

Submitter: PanelApp Australia

ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorderDEFINITIVE

Inheritance Pattern: AD

Disease ID:MONDO:0014379

Submitter: Illumina

The ADNP gene is located on chromosome 20 at 20q13.13 and encodes the activity dependent neuroprotector homeobox protein, which regulates gene expression via chromatin remodeling. ADNP was first reported in relation to autosomal dominant ADNP-related multiple congenital anomalies-intellectual disability-autism spectrum disorder in 2014 (24531329: Helsmoortel et al. 2014). Evidence supporting this gene-disease relationship includes case-level data and experimental data. At least five unique de novo loss-of-function variants have been reported in probands from three publications (24531329: Helsmoortel et al. 2014; 25057125: Pescosolido et al. 2014; 31029150: Bend et al. 2019). More evidence is available in the literature, but the maximum score for genetic evidence has been reached. This gene-disease relationship is supported by protein interaction with SWI/SNF chromatin remodelling complex subunits, dysregulated gene expression in ADNP knockout mouse embryos, and a heterozygous knockout mouse model that shows strong phenotypic overlap with human patients (17878164: Mandel & Gozes 2007; 17222401: Mandel et al. 2007; 30106381: Hacohen-Kleiman et al. 2018). In summary, ADNP is definitively associated with autosomal dominant ADNP-related multiple congenital anomalies-intellectual disability-autism spectrum disorder. This has been repeatedly demonstrated in both the research and clinical diagnostic settings and has been upheld over time.

ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorderDEFINITIVE

Inheritance Pattern: AD

Disease ID:MONDO:0014379

Submitter: ClinGen

*ADNP* was first reported in relation to autosomal dominant ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorder, also known as Helsmoortel-Van Der Aa syndrome, in 2014 (Helsmoortel et al., PMID: 24531329). The disorder is characterized by hypotonia, speech and motor delay, intellectual disability, autism or autistic features, and dysmorphic facial features. Other common findings include sleep disturbances, structural brain abnormalities, feeding issues, gastrointestinal abnormalities, visual defects, musculoskeletal anomalies, recurrent infections, cardiac abnormalities, and urinary tract abnormalities. Truncating variants in *ADNP* have been reported in at least 18 probands in four publications (PMIDs: 24531329, 25057125, 30107084, 31127536). Eight variants (nonsense, frameshift) that have been reported in 10 probands in two publications (PMIDs: 24531329, 25057125) are included in this curation. Variants were *de novo* in all instances in which parental DNA was available. All of the curated variants are located in the last exon and are predicted to escape nonsense-mediated mRNA decay. More evidence is available in the literature, but the maximum score for genetic evidence (12 points) has been reached. The mechanism of pathogenicity is reported to be loss of function. ADNP is a homeodomain-containing zinc finger protein with transcription factor activity that is essential for brain formation. ADNP interacts with components of the BAF complex, a chromatin remodeling complex involved in the regulation of gene expression. This gene-disease relationship is also supported by a mouse model. In summary, there is definitive evidence supporting the relationship between *ADNP* and autosomal dominant ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorder. This has been repeatedly demonstrated in both the research and clinical diagnostic settings, and has been upheld over time. This classification was approved by the ClinGen Intellectual Disability and Autism Gene Curation Expert Panel on January 15, 2020 (SOP Version 7).

ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorderSUPPORTIVE

Inheritance Pattern: Unknown

Disease ID:MONDO:0014379

Submitter: Orphanet

ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorderSTRONG

Inheritance Pattern: AD

Disease ID:MONDO:0014379

Submitter: Labcorp Genetics (formerly Invitae)

ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorderDEFINITIVE

Inheritance Pattern: AD

Disease ID:MONDO:0014379

Submitter: G2P

Clinical Genomic Database (CGD)

Helsmoortel-van der Aa syndromeAD

Manifestation: Cardiovascular; Craniofacial; Musculoskeletal; Neurologic

Intervention: Cardiovascular

Rationale: Individuals have been described with congenital heart anomalies, and awareness may enable early diagnosis and management

Refs: 24531329; 25057125Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to ADNP variants in ClinVar

24 Conditions Cataloged
not providedTotal: 722
Inborn genetic diseasesTotal: 219
ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorderTotal: 191
not specifiedTotal: 98
ADNP-related disorderTotal: 86
Intellectual disabilityTotal: 13
See casesTotal: 5
Global developmental delayTotal: 3

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001282531.3. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
18
clinvar
157
clinvar
16
clinvar
191
missense
9
clinvar
381
clinvar
151
clinvar
4
clinvar
545
nonsense
34
clinvar
10
clinvar
2
clinvar
46
start loss
2
clinvar
2
frameshift
76
clinvar
48
clinvar
7
clinvar
131
splice donor/acceptor (+/-2bp)
1
clinvar
4
clinvar
4
clinvar
9
Total1137141230820924

Highest pathogenic variant AF is 0.00001983217

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 31 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001282531.3RefSeqNP_001269460.13MANE Select
ENST00000621696.5EnsemblENSP00000483881.13MANE Select
NM_001282532.2RefSeqNP_001269461.13Standard
NM_001347511.2RefSeqNP_001334440.13Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
adnpaDanio rerio

Structure: blood cell

Quality: decreased amount

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • regulation of transcription by RNA polymerase II
  • short-term memory
  • response to carbohydrate
  • response to inorganic substance
  • negative regulation of gene expression

Molecular Function

  • DNA-binding transcription factor activity, RNA polymerase II-specific
  • DNA binding
  • chromatin binding
  • copper ion binding
  • protein binding

Cellular Component

  • extracellular space
  • nucleus
  • cytoplasm
  • axon
  • dendrite

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000396029
Coding exons
3
Length
42374
Individuals with no LoFs
125733
Homozygous LoFs
0
Heterozygous LoFs
6
Defined
125739
p
0.0000239
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense2.074395790.7580.00003007343
Missense (PolyPhen)57189.870.30022552
Synonymous-3.922882151.340.00001182066
Loss of Function5.61138.70.02590.00000227486

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000120.00012rare
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish00.0absent
European (Non-Finnish)0.0000260.000026rare
South Asian0.0000330.000033rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Potential transcription factor. May mediate some of the neuroprotective peptide VIP-associated effects involving normal growth and cancer proliferation.;

Recessive Scores

pRec
0.133

Intolerance Scores

LoFtool
0.00689
RVIS EVS
-1.41
RVIS percentile EVS
4.13

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.881

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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