rs757536895

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP5_Moderate

The NM_001256715.2(DNAAF3):c.755A>G(p.Asn252Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000367 in 1,609,112 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

DNAAF3
NM_001256715.2 missense

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 2.23

Variant links:

Genes affected

DNAAF3 (HGNC:30492): (dynein axonemal assembly factor 3) The protein encoded by this gene is required for the assembly of axonemal inner and outer dynein arms and plays a role in assembling dynein complexes for transport into cilia. Defects in this gene are a cause of primary ciliary dyskinesia type 2 (CILD2). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2012]

DNAAF3 links:

DNAAF3-AS1 (HGNC:55292): (DNAAF3 antisense RNA 1)

DNAAF3-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 19-55161327-T-C is Pathogenic according to our data. Variant chr19-55161327-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 410287.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAAF3	NM_001256715.2 link	c.755A>G	p.Asn252Ser	missense_variant	Exon 7 of 12	ENST00000524407.7	NP_001243644.1	Q8N9W5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNAAF3	ENST00000524407.7 link	c.755A>G	p.Asn252Ser	missense_variant	Exon 7 of 12	1	NM_001256715.2	ENSP00000432046.3		Q8N9W5-1

Frequencies

GnomAD3 genomes

AF:

0.0000133

AC:

AN:

150152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000246

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:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000329

AC:

AN:

243248

Hom.:

AF XY:

0.0000301

AC XY:

AN XY:

132912

show subpopulations

Gnomad AFR exome

AF:

0.0000675

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:

0.0000638

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000391

AC:

AN:

1458960

Hom.:

Cov.:

AF XY:

0.0000400

AC XY:

AN XY:

725646

show subpopulations

Gnomad4 AFR exome

AF:

0.0000599

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:

0.0000441

Gnomad4 OTH exome

AF:

0.0000997

GnomAD4 genome

AF:

0.0000133

AC:

AN:

150152

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73284

show subpopulations

Gnomad4 AFR

AF:

0.0000246

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:

0.0000148

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

ExAC

AF:

0.0000331

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000595

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Pathogenic:1

Mar 16, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 320 of the DNAAF3 protein (p.Asn320Ser). This variant is present in population databases (rs757536895, gnomAD 0.009%). This missense change has been observed in individual(s) with primary ciliary dyskinesia (PMID: 31772028; Invitae). This variant is also known as c.896A>G, Asn299Ser. ClinVar contains an entry for this variant (Variation ID: 410287). 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) performed at Invitae indicates that this missense variant is expected to disrupt DNAAF3 protein function with a positive predictive value of 80%. For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.45

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.41

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.14

.;T;.;.

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.84

T;T;T;T

M_CAP

Uncertain

0.19

MetaRNN

Uncertain

0.63

D;D;D;D

MetaSVM

Benign

-0.35

MutationAssessor

Pathogenic

3.1

.;M;.;.

PrimateAI

Pathogenic

0.80

PROVEAN

Pathogenic

-4.7

D;.;.;D

REVEL

Uncertain

0.35

Sift

Pathogenic

0.0

D;.;.;D

Sift4G

Pathogenic

0.0

D;D;D;D

Polyphen

1.0

.;D;.;.

Vest4

0.55

MutPred

0.47

.;Gain of glycosylation at N252 (P = 0.03);.;.;

MVP

0.68

MPC

0.76

ClinPred

0.95

GERP RS

4.2

Varity_R

0.26

gMVP

0.97

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