rs1400909690

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000382409.4(DEAF1):c.80C>T(p.Ala27Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,065,266 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A27E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000069 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000016 ( 1 hom. )

Consequence

DEAF1
ENST00000382409.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.759

Variant links:

Genes affected

DEAF1 (HGNC:14677): (DEAF1 transcription factor) This gene encodes a zinc finger domain-containing protein that functions as a regulator of transcription. The encoded proteins binds to its own promoter as well as to that of several target genes. Activity of this protein is important in the regulation of embryonic development. Mutations in this gene have been found in individuals with autosomal dominant cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

DEAF1 links:

EPS8L2 (HGNC:21296): (EPS8 signaling adaptor L2) This gene encodes a member of the EPS8 gene family. The encoded protein, like other members of the family, is thought to link growth factor stimulation to actin organization, generating functional redundancy in the pathways that regulate actin cytoskeletal remodeling. [provided by RefSeq, Dec 2008]

EPS8L2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2557372).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DEAF1	NM_021008.4 linkuse as main transcript	c.80C>T	p.Ala27Val	missense_variant	1/12	ENST00000382409.4	NP_066288.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DEAF1	ENST00000382409.4 linkuse as main transcript	c.80C>T	p.Ala27Val	missense_variant	1/12	1	NM_021008.4	ENSP00000371846	P1	O75398-1

Frequencies

GnomAD3 genomes

AF:

0.00000689

AC:

AN:

145150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000249

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000350

AC:

AN:

28542

Hom.:

AF XY:

0.0000534

AC XY:

AN XY:

18728

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000759

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000163

AC:

AN:

920116

Hom.:

Cov.:

AF XY:

0.0000272

AC XY:

AN XY:

440610

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000161

Gnomad4 OTH exome

AF:

0.0000617

GnomAD4 genome

AF:

0.00000689

AC:

AN:

145150

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

70722

show subpopulations

Gnomad4 AFR

AF:

0.0000249

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 02, 2024

The c.80C>T (p.A27V) alteration is located in exon 1 (coding exon 1) of the DEAF1 gene. This alteration results from a C to T substitution at nucleotide position 80, causing the alanine (A) at amino acid position 27 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Intellectual disability, autosomal dominant 24;C4310683:Intellectual disability-epilepsy-extrapyramidal syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Jul 06, 2021

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 01, 2023

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 27 of the DEAF1 protein (p.Ala27Val). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with DEAF1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1467437). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on DEAF1 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.38

BayesDel_addAF

Benign

-0.065

BayesDel_noAF

Benign

-0.33

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.19

Eigen

Benign

-0.19

Eigen_PC

Benign

-0.17

FATHMM_MKL

Benign

0.32

LIST_S2

Benign

0.60

M_CAP

Pathogenic

0.61

MetaRNN

Benign

0.26

MetaSVM

Benign

-0.84

MutationAssessor

Benign

0.0

MutationTaster

Benign

0.93

N;N

PrimateAI

Pathogenic

0.89

PROVEAN

Benign

-0.34

REVEL

Benign

0.10

Sift

Benign

0.086

Sift4G

Uncertain

0.026

Polyphen

0.89

Vest4

0.18

MutPred

0.38

Gain of catalytic residue at A27 (P = 0.0143);

MVP

0.69

MPC

1.5

ClinPred

0.23

GERP RS

2.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.9

Varity_R

0.083

gMVP

0.35

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over