NM_017802.4:c.1063A>G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BS1_Supporting

The NM_017802.4(DNAAF5):c.1063A>G(p.Arg355Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000367 in 1,614,090 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00037 ( 0 hom. )

Consequence

DNAAF5
NM_017802.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 5.35

Variant links:

Genes affected

DNAAF5 (HGNC:26013): (dynein axonemal assembly factor 5) The protein encoded by this gene is essential for the preassembly or stability of axonemal dynein arms, and is found only in organisms with motile cilia and flagella. Mutations in this gene are associated with primary ciliary dyskinesia-18, a disorder characterized by abnormalities of motile cilia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Feb 2013]

DNAAF5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000368 (56/152232) while in subpopulation NFE AF= 0.000529 (36/68012). AF 95% confidence interval is 0.000392. There are 0 homozygotes in gnomad4. There are 24 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAAF5	NM_017802.4 link	c.1063A>G	p.Arg355Gly	missense_variant	Exon 5 of 13	ENST00000297440.11	NP_060272.3	Q86Y56-1B3KPE2
DNAAF5	XM_024446813.2 link	c.1063A>G	p.Arg355Gly	missense_variant	Exon 5 of 12		XP_024302581.1
DNAAF5	NR_075098.2 link	n.1023A>G		non_coding_transcript_exon_variant	Exon 5 of 13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DNAAF5	ENST00000297440.11 link	c.1063A>G	p.Arg355Gly	missense_variant	Exon 5 of 13	1	NM_017802.4	ENSP00000297440.6	Q86Y56-1
DNAAF5	ENST00000440747.5 link	c.466A>G	p.Arg156Gly	missense_variant	Exon 5 of 13	2		ENSP00000403165.1	H0Y650
DNAAF5	ENST00000437419.5 link	c.379A>G	p.Arg127Gly	missense_variant	Exon 4 of 5	5		ENSP00000410788.1	H7C3B1

Frequencies

GnomAD3 genomes

AF:

0.000368

AC:

AN:

152114

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000944

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000529

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.000330

AC:

AN:

251240

Hom.:

AF XY:

0.000302

AC XY:

AN XY:

135780

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000231

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000272

Gnomad SAS exome

AF:

0.000359

Gnomad FIN exome

AF:

0.0000924

Gnomad NFE exome

AF:

0.000467

Gnomad OTH exome

AF:

0.000490

GnomAD4 exome

AF:

0.000367

AC:

536

AN:

1461858

Hom.:

Cov.:

AF XY:

0.000355

AC XY:

258

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.000201

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.000278

Gnomad4 FIN exome

AF:

0.000112

Gnomad4 NFE exome

AF:

0.000421

Gnomad4 OTH exome

AF:

0.000364

GnomAD4 genome

AF:

0.000368

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.000322

AC XY:

AN XY:

74438

show subpopulations

Gnomad4 AFR

AF:

0.000217

Gnomad4 AMR

AF:

0.000458

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000944

Gnomad4 NFE

AF:

0.000529

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.000394

Hom.:

Bravo

AF:

0.000453

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00104

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000280

AC:

EpiCase

AF:

0.000763

EpiControl

AF:

0.000533

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Uncertain:2

Apr 11, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.R355G variant (also known as c.1063A>G), located in coding exon 5 of the DNAAF5 gene, results from an A to G substitution at nucleotide position 1063. The arginine at codon 355 is replaced by glycine, an amino acid with dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with glycine, which is neutral and non-polar, at codon 355 of the DNAAF5 protein (p.Arg355Gly). This variant is present in population databases (rs201998366, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with DNAAF5-related conditions. ClinVar contains an entry for this variant (Variation ID: 454845). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt DNAAF5 protein function with a positive predictive value of 80%. 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. -

not provided

Uncertain:1

Jul 29, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.88

BayesDel_addAF

Uncertain

0.10

BayesDel_noAF

Pathogenic

0.24

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.31

Eigen

Uncertain

0.20

Eigen_PC

Benign

0.20

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.079

MetaRNN

Uncertain

0.43

MetaSVM

Benign

-0.65

PrimateAI

Uncertain

0.66

PROVEAN

Pathogenic

-5.3

REVEL

Uncertain

0.45

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0070

Polyphen

0.84

Vest4

0.88

MVP

0.28

MPC

0.41

ClinPred

0.33

GERP RS

3.2

Varity_R

0.67

gMVP

0.67

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