rs201519478

Positions:

chr16-84170323-C-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_178452.6(DNAAF1):c.1495C>A(p.Pro499Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000428 in 1,611,784 control chromosomes in the GnomAD database, including 10 homozygotes. 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P499L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00047 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00042 ( 9 hom. )

Consequence

DNAAF1
NM_178452.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 0.496

Variant links:

Genes affected

DNAAF1 (HGNC:30539): (dynein axonemal assembly factor 1) The protein encoded by this gene is cilium-specific and is required for the stability of the ciliary architecture. It is involved in the regulation of microtubule-based cilia and actin-based brush border microvilli. Mutations in this gene are associated with primary ciliary dyskinesia-13. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

DNAAF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.003942609).

BP6

Variant 16-84170323-C-A is Benign according to our data. Variant chr16-84170323-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 242158.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Benign=1, Uncertain_significance=1}.

BS2

High Homozygotes in GnomAdExome4 at 9 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DNAAF1	NM_178452.6 linkuse as main transcript	c.1495C>A	p.Pro499Thr	missense_variant	8/12	ENST00000378553.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DNAAF1	ENST00000378553.10 linkuse as main transcript	c.1495C>A	p.Pro499Thr	missense_variant	8/12	1	NM_178452.6	P1	Q8NEP3-1
DNAAF1	ENST00000563818.5 linkuse as main transcript	n.1172C>A		non_coding_transcript_exon_variant	4/8	2
DNAAF1	ENST00000570298.5 linkuse as main transcript	n.1649C>A		non_coding_transcript_exon_variant	8/11	2
DNAAF1	ENST00000563093.5 linkuse as main transcript	c.*50C>A		3_prime_UTR_variant, NMD_transcript_variant	9/11	2			Q8NEP3-3

Frequencies

GnomAD3 genomes

AF:

0.000473

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.0179

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000751

AC:

187

AN:

248998

Hom.:

AF XY:

0.000755

AC XY:

102

AN XY:

135148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0165

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000125

Gnomad OTH exome

AF:

0.00131

GnomAD4 exome

AF:

0.000423

AC:

618

AN:

1459608

Hom.:

Cov.:

AF XY:

0.000428

AC XY:

311

AN XY:

726192

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000227

Gnomad4 ASJ exome

AF:

0.0183

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000666

Gnomad4 OTH exome

AF:

0.00108

GnomAD4 genome

AF:

0.000473

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.000444

AC XY:

AN XY:

74344

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.0179

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000881

Hom.:

Bravo

AF:

0.000487

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000544

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000296

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Benign:2

Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 12, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Nov 28, 2018	This alteration is classified as likely 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. -

Primary ciliary dyskinesia 13

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

DNAAF1-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Sep 02, 2022

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

0.073

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.61

CADD

Benign

2.0

DANN

Benign

0.19

DEOGEN2

Benign

0.0055

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.0081

LIST_S2

Benign

0.33

M_CAP

Benign

0.0028

MetaRNN

Benign

0.0039

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.1

MutationTaster

Benign

1.0

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.70

REVEL

Benign

0.088

Sift

Benign

0.093

Sift4G

Benign

0.20

Polyphen

0.0050

Vest4

0.23

MVP

0.085

MPC

0.020

ClinPred

0.030

GERP RS

-0.49

Varity_R

0.034

gMVP

0.071

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