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GeneBe

16-84176028-C-G

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_178452.6(DNAAF1):ā€‹c.1794C>Gā€‹(p.Leu598=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.512 in 1,613,586 control chromosomes in the GnomAD database, including 212,260 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.51 ( 20081 hom., cov: 32)
Exomes š‘“: 0.51 ( 192179 hom. )

Consequence

DNAAF1
NM_178452.6 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -2.50
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.91).
BP6
Variant 16-84176028-C-G is Benign according to our data. Variant chr16-84176028-C-G is described in ClinVar as [Benign]. Clinvar id is 163086.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-84176028-C-G is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-2.5 with no splicing effect.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.565 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAAF1NM_178452.6 linkuse as main transcriptc.1794C>G p.Leu598= synonymous_variant 11/12 ENST00000378553.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAAF1ENST00000378553.10 linkuse as main transcriptc.1794C>G p.Leu598= synonymous_variant 11/121 NM_178452.6 P1Q8NEP3-1

Frequencies

GnomAD3 genomes
AF:
0.514
AC:
78113
AN:
151868
Hom.:
20039
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.520
Gnomad AMI
AF:
0.615
Gnomad AMR
AF:
0.552
Gnomad ASJ
AF:
0.528
Gnomad EAS
AF:
0.526
Gnomad SAS
AF:
0.583
Gnomad FIN
AF:
0.469
Gnomad MID
AF:
0.522
Gnomad NFE
AF:
0.501
Gnomad OTH
AF:
0.522
GnomAD3 exomes
AF:
0.528
AC:
132579
AN:
251306
Hom.:
35301
AF XY:
0.529
AC XY:
71900
AN XY:
135848
show subpopulations
Gnomad AFR exome
AF:
0.517
Gnomad AMR exome
AF:
0.581
Gnomad ASJ exome
AF:
0.520
Gnomad EAS exome
AF:
0.522
Gnomad SAS exome
AF:
0.585
Gnomad FIN exome
AF:
0.473
Gnomad NFE exome
AF:
0.509
Gnomad OTH exome
AF:
0.535
GnomAD4 exome
AF:
0.512
AC:
748190
AN:
1461600
Hom.:
192179
Cov.:
60
AF XY:
0.513
AC XY:
373279
AN XY:
727118
show subpopulations
Gnomad4 AFR exome
AF:
0.514
Gnomad4 AMR exome
AF:
0.580
Gnomad4 ASJ exome
AF:
0.526
Gnomad4 EAS exome
AF:
0.524
Gnomad4 SAS exome
AF:
0.581
Gnomad4 FIN exome
AF:
0.477
Gnomad4 NFE exome
AF:
0.504
Gnomad4 OTH exome
AF:
0.515
GnomAD4 genome
AF:
0.515
AC:
78209
AN:
151986
Hom.:
20081
Cov.:
32
AF XY:
0.516
AC XY:
38348
AN XY:
74298
show subpopulations
Gnomad4 AFR
AF:
0.521
Gnomad4 AMR
AF:
0.553
Gnomad4 ASJ
AF:
0.528
Gnomad4 EAS
AF:
0.526
Gnomad4 SAS
AF:
0.583
Gnomad4 FIN
AF:
0.469
Gnomad4 NFE
AF:
0.501
Gnomad4 OTH
AF:
0.523
Alfa
AF:
0.469
Hom.:
4855
Bravo
AF:
0.521
Asia WGS
AF:
0.554
AC:
1925
AN:
3478
EpiCase
AF:
0.510
EpiControl
AF:
0.518

ClinVar

Significance: Benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia 13 Benign:4
Benign, criteria provided, single submitterclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical CenterSep 21, 2015- -
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This 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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 30, 2021- -
Benign, no assertion criteria providedclinical testingDiagnostic Laboratory, Department of Genetics, University Medical Center Groningen-- -
not specified Benign:2
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineFeb 21, 2013Leu598Leu in exon 11 of DNAAF1: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue and is not located wi thin the splice consensus sequence. It has been identified in 49.1% (4226/8600) of European American chromosomes from a broad population by the NHLBI Exome Sequ encing Project (http://evs.gs.washington.edu/EVS; dbSNP rs2288019). -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Primary ciliary dyskinesia Benign:2
Benign, criteria provided, single submitterclinical testingAmbry GeneticsDec 11, 2014This 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. -
Benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxNov 28, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.91
CADD
Benign
0.034
DANN
Benign
0.44

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.

Other links and lift over

dbSNP: rs2288019; hg19: chr16-84209634; COSMIC: COSV58985343; COSMIC: COSV58985343; API