rs74375435

Positions:

Variant summary

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

The NM_130810.4(DNAAF4):c.858A>T(p.Glu286Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,614,152 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

DNAAF4
NM_130810.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.259

Variant links:

Genes affected

DNAAF4 (HGNC:21493): (dynein axonemal assembly factor 4) This gene encodes a tetratricopeptide repeat domain-containing protein. The encoded protein interacts with estrogen receptors and the heat shock proteins, Hsp70 and Hsp90. An homologous protein in rat has been shown to function in neuronal migration in the developing neocortex. A chromosomal translocation involving this gene is associated with a susceptibility to developmental dyslexia. Mutations in this gene are associated with deficits in reading and spelling. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the downstream cell cycle progression 1 (CCPG1) gene. [provided by RefSeq, Mar 2011]

DNAAF4 links:

DNAAF4-CCPG1 (HGNC:):

DNAAF4-CCPG1 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=0.07198453).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DNAAF4	NM_130810.4 linkuse as main transcript	c.858A>T	p.Glu286Asp	missense_variant	7/10	ENST00000321149.7
DNAAF4-CCPG1	NR_037923.1 linkuse as main transcript	n.1113A>T		non_coding_transcript_exon_variant	6/16
DNAAF4	NM_001033560.2 linkuse as main transcript	c.858A>T	p.Glu286Asp	missense_variant	7/9
DNAAF4	NM_001033559.3 linkuse as main transcript	c.858A>T	p.Glu286Asp	missense_variant	7/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DNAAF4	ENST00000321149.7 linkuse as main transcript	c.858A>T	p.Glu286Asp	missense_variant	7/10	1	NM_130810.4	P1	Q8WXU2-1

Frequencies

GnomAD3 genomes

AF:

0.000322

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00116

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:

0.000478

GnomAD3 exomes

AF:

0.0000597

AC:

AN:

251406

Hom.:

AF XY:

0.0000589

AC XY:

AN XY:

135892

show subpopulations

Gnomad AFR exome

AF:

0.000923

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1461796

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727198

show subpopulations

Gnomad4 AFR exome

AF:

0.000388

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:

0.00

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.000322

AC:

AN:

152356

Hom.:

Cov.:

AF XY:

0.000295

AC XY:

AN XY:

74516

show subpopulations

Gnomad4 AFR

AF:

0.00115

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:

0.000473

Alfa

AF:

0.000214

Hom.:

Bravo

AF:

0.000359

ESP6500AA

AF:

0.000456

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000577

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Aug 31, 2022

This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 286 of the DNAAF4 protein (p.Glu286Asp). This variant is present in population databases (rs74375435, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with DNAAF4-related conditions. ClinVar contains an entry for this variant (Variation ID: 525280). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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

Benign

0.14

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.012

.;.;T;T

Eigen

Benign

-0.26

Eigen_PC

Benign

-0.29

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.79

T;T;T;.

M_CAP

Benign

0.055

MetaRNN

Benign

0.072

T;T;T;T

MetaSVM

Uncertain

-0.25

MutationTaster

Benign

0.91

D;D;D;D;D

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-1.6

N;N;N;N

REVEL

Uncertain

0.33

Sift

Benign

0.074

T;T;T;T

Sift4G

Benign

0.10

T;T;T;T

Polyphen

1.0

D;P;B;B

Vest4

0.46

MutPred

0.41

Loss of helix (P = 0.079);Loss of helix (P = 0.079);Loss of helix (P = 0.079);Loss of helix (P = 0.079);

MVP

0.67

MPC

0.056

ClinPred

0.077

GERP RS

-3.4

Varity_R

0.16

gMVP

0.36

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