rs141192321

Positions:

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_018139.3(DNAAF2):c.1459C>T(p.Arg487Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000215 in 1,605,590 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00093 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

DNAAF2
NM_018139.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.40

Variant links:

Genes affected

DNAAF2 (HGNC:20188): (dynein axonemal assembly factor 2) This gene encodes a highly conserved protein involved in the preassembly of dynein arm complexes which power cilia. These complexes are found in some cilia and are assembled in the cytoplasm prior to transport for cilia formation. Mutations in this gene have been associated with primary ciliary dyskinesia. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Oct 2009]

DNAAF2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.003311962).

BP6

Variant 14-49633691-G-A is Benign according to our data. Variant chr14-49633691-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 215901.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000933 (142/152262) while in subpopulation AFR AF= 0.0031 (129/41554). AF 95% confidence interval is 0.00267. There are 0 homozygotes in gnomad4. There are 67 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DNAAF2	NM_018139.3 linkuse as main transcript	c.1459C>T	p.Arg487Cys	missense_variant	1/3	ENST00000298292.13
DNAAF2	NM_001083908.2 linkuse as main transcript	c.1459C>T	p.Arg487Cys	missense_variant	1/2
DNAAF2	NM_001378453.1 linkuse as main transcript	c.-413C>T		5_prime_UTR_variant	1/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DNAAF2	ENST00000298292.13 linkuse as main transcript	c.1459C>T	p.Arg487Cys	missense_variant	1/3	1	NM_018139.3	P2	Q9NVR5-1
DNAAF2	ENST00000406043.3 linkuse as main transcript	c.1459C>T	p.Arg487Cys	missense_variant	1/2	1		A2	Q9NVR5-2

Frequencies

GnomAD3 genomes

AF:

0.000933

AC:

142

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00311

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

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:

0.0000294

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000317

AC:

AN:

245934

Hom.:

AF XY:

0.000217

AC XY:

AN XY:

133706

show subpopulations

Gnomad AFR exome

AF:

0.00342

Gnomad AMR exome

AF:

0.000557

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:

0.0000449

Gnomad OTH exome

AF:

0.000169

GnomAD4 exome

AF:

0.000140

AC:

204

AN:

1453328

Hom.:

Cov.:

AF XY:

0.000115

AC XY:

AN XY:

721802

show subpopulations

Gnomad4 AFR exome

AF:

0.00382

Gnomad4 AMR exome

AF:

0.000497

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:

0.0000289

Gnomad4 OTH exome

AF:

0.000284

GnomAD4 genome

AF:

0.000933

AC:

142

AN:

152262

Hom.:

Cov.:

AF XY:

0.000900

AC XY:

AN XY:

74448

show subpopulations

Gnomad4 AFR

AF:

0.00310

Gnomad4 AMR

AF:

0.000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000204

Hom.:

Bravo

AF:

0.00124

ESP6500AA

AF:

0.00296

AC:

ESP6500EA

AF:

0.000117

AC:

ExAC

AF:

0.000387

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Benign:2

Benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Aug 10, 2018	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. -
Likely benign, criteria provided, single submitter	clinical testing	Invitae	Jan 13, 2024	- -

DNAAF2-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Apr 04, 2023

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

0.10

BayesDel_addAF

Benign

-0.74

BayesDel_noAF

Benign

-0.83

CADD

Benign

4.8

DANN

Benign

0.92

DEOGEN2

Benign

0.0034

T;.

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0084

LIST_S2

Benign

0.59

T;T

M_CAP

Benign

0.0055

MetaRNN

Benign

0.0033

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.69

N;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.37

PROVEAN

Benign

-0.16

N;N

REVEL

Benign

0.0020

Sift

Benign

0.24

T;T

Sift4G

Benign

0.19

T;T

Polyphen

0.0

B;B

Vest4

0.052

MVP

0.14

MPC

0.70

ClinPred

0.011

GERP RS

-8.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.057

gMVP

0.42

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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