rs373512514

Positions:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_178452.6(DNAAF1):c.115T>C(p.Cys39Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000284 in 1,548,140 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

DNAAF1
NM_178452.6 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.243

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:

DNAAF1 (HGNC:):

DNAAF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.034828693).

BP6

Variant 16-84145555-T-C is Benign according to our data. Variant chr16-84145555-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 525446.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000171 (26/151996) while in subpopulation AFR AF= 0.000628 (26/41386). AF 95% confidence interval is 0.00044. There are 0 homozygotes in gnomad4. There are 11 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNAAF1	NM_178452.6 linkuse as main transcript	c.115T>C	p.Cys39Arg	missense_variant	1/12	ENST00000378553.10	NP_848547.4	Q8NEP3-1A0A140VJN4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
DNAAF1	ENST00000378553.10 linkuse as main transcript	c.115T>C	p.Cys39Arg	missense_variant	1/12	1	NM_178452.6	ENSP00000367815.5	Q8NEP3-1
DNAAF1	ENST00000567918.5 linkuse as main transcript	n.115T>C		non_coding_transcript_exon_variant	1/7	1		ENSP00000455154.1	H3BP51
DNAAF1	ENST00000563093.5 linkuse as main transcript	n.115T>C		non_coding_transcript_exon_variant	1/11	2		ENSP00000457373.1	Q8NEP3-3
DNAAF1	ENST00000570298.5 linkuse as main transcript	n.269T>C		non_coding_transcript_exon_variant	1/11	2

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

151996

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000628

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000266

AC:

AN:

150434

Hom.:

AF XY:

0.0000125

AC XY:

AN XY:

79880

show subpopulations

Gnomad AFR exome

AF:

0.000476

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000129

AC:

AN:

1396144

Hom.:

Cov.:

AF XY:

0.0000145

AC XY:

AN XY:

688736

show subpopulations

Gnomad4 AFR exome

AF:

0.000567

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.000171

AC:

AN:

151996

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74228

show subpopulations

Gnomad4 AFR

AF:

0.000628

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000196

ESP6500AA

AF:

0.000484

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000115

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Jul 05, 2022	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. -
Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Oct 13, 2023	This sequence change replaces cysteine, which is neutral and slightly polar, with arginine, which is basic and polar, at codon 39 of the DNAAF1 protein (p.Cys39Arg). This variant is present in population databases (rs373512514, gnomAD 0.06%). This variant has not been reported in the literature in individuals affected with DNAAF1-related conditions. ClinVar contains an entry for this variant (Variation ID: 525446). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The arginine 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.054

BayesDel_addAF

Benign

-0.63

BayesDel_noAF

Benign

-0.77

CADD

Benign

DANN

Benign

0.58

DEOGEN2

Benign

0.0012

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.0082

LIST_S2

Benign

0.48

M_CAP

Benign

0.0020

MetaRNN

Benign

0.035

MetaSVM

Benign

-0.98

MutationAssessor

Benign

-0.34

PrimateAI

Benign

0.33

PROVEAN

Benign

0.55

REVEL

Benign

0.013

Sift

Benign

0.33

Sift4G

Benign

0.85

Polyphen

0.0020

Vest4

0.055

MVP

0.13

MPC

0.024

ClinPred

0.025

GERP RS

0.18

Varity_R

0.12

gMVP

0.23

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