rs200673226

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001256715.2(DNAAF3):c.1589C>T(p.Pro530Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00128 in 1,609,198 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P530P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00081 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0013 ( 3 hom. )

Consequence

DNAAF3
NM_001256715.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: -1.79

Publications

5 publications found

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:

ENSG00000267110 (HGNC:):

ENSG00000267110 links:

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

DNAAF3-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.006247252).

BP6

Variant 19-55159099-G-A is Benign according to our data. Variant chr19-55159099-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 330207.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000807 (123/152338) while in subpopulation SAS AF = 0.00186 (9/4826). AF 95% confidence interval is 0.00105. There are 0 homozygotes in GnomAd4. There are 56 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 3 AR,AD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAAF3	NM_001256715.2 link	c.1589C>T	p.Pro530Leu	missense_variant	Exon 12 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.1589C>T	p.Pro530Leu	missense_variant	Exon 12 of 12	1	NM_001256715.2	ENSP00000432046.3		Q8N9W5-1
ENSG00000267110	ENST00000587871.1 link	n.478+94C>T		intron_variant	Intron 4 of 8	5		ENSP00000473050.1		M0R381

Frequencies

GnomAD3 genomes

AF:

0.000808

AC:

123

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00186

Gnomad FIN

AF:

0.000565

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00126

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00100

AC:

246

AN:

245814

AF XY:

0.00102

show subpopulations

Gnomad AFR exome

AF:

0.0000663

Gnomad AMR exome

AF:

0.000557

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000420

Gnomad NFE exome

AF:

0.00169

Gnomad OTH exome

AF:

0.000503

GnomAD4 exome

AF:

0.00132

AC:

1929

AN:

1456860

Hom.:

Cov.:

AF XY:

0.00132

AC XY:

959

AN XY:

724174

show subpopulations

African (AFR)

AF:

0.000360

AC:

AN:

33342

American (AMR)

AF:

0.000519

AC:

AN:

44306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25920

East Asian (EAS)

AF:

0.00

AC:

AN:

39572

South Asian (SAS)

AF:

0.000628

AC:

AN:

86014

European-Finnish (FIN)

AF:

0.000570

AC:

AN:

52602

Middle Eastern (MID)

AF:

0.00122

AC:

AN:

5730

European-Non Finnish (NFE)

AF:

0.00158

AC:

1748

AN:

1109204

Other (OTH)

AF:

0.000914

AC:

AN:

60170

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

115

231

346

462

577

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

136

204

272

340

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000807

AC:

123

AN:

152338

Hom.:

Cov.:

AF XY:

0.000752

AC XY:

AN XY:

74500

show subpopulations

African (AFR)

AF:

0.000337

AC:

AN:

41576

American (AMR)

AF:

0.000457

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5184

South Asian (SAS)

AF:

0.00186

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.000565

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00126

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00139

Hom.:

Bravo

AF:

0.000929

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00159

AC:

ExAC

AF:

0.00107

AC:

129

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00180

EpiControl

AF:

0.00178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Uncertain:1Benign:1

May 31, 2017

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Aug 23, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 597 of the DNAAF3 protein (p.Pro597Leu). This variant is present in population databases (rs200673226, gnomAD 0.2%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with DNAAF3-related conditions. ClinVar contains an entry for this variant (Variation ID: 330207). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect 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. -

not specified

Uncertain:1

Jun 18, 2025

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: DNAAF3 c.1790C>T (p.Pro597Leu) results in a non-conservative amino acid change in the encoded protein sequence. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change. The variant allele was found at a frequency of 0.001 in 245814 control chromosomes (gnomAD). This frequency is not significantly higher than estimated for a pathogenic variant in DNAAF3 causing Ciliary Dyskinesia, Primary, 2, allowing no conclusion about variant significance. To our knowledge, no occurrence of c.1790C>T in individuals affected with Ciliary Dyskinesia, Primary, 2 and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 330207). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Primary ciliary dyskinesia 2

Uncertain:1

Oct 31, 2018

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

DNAAF3-related disorder

Benign:1

Apr 11, 2022

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.056

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.64

CADD

Benign

1.8

(source)

DANN

Benign

0.34

DEOGEN2

Benign

0.0061

.;T;.;.

Eigen

Benign

-1.8

Eigen_PC

Benign

-1.9

FATHMM_MKL

Benign

0.0074

LIST_S2

Benign

0.40

T;T;T;T

M_CAP

Benign

0.0055

MetaRNN

Benign

0.0062

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.90

.;L;.;.

PhyloP100

-1.8

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.6

N;.;.;N

REVEL

Benign

0.027

Sift

Benign

1.0

T;.;.;T

Sift4G

Benign

0.86

T;T;T;T

Polyphen

0.0030

.;B;.;.

Vest4

0.078

MVP

0.014

MPC

0.24

ClinPred

0.012

GERP RS

-4.3

Varity_R

0.034

gMVP

0.14

Mutation Taster

=97/3

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over