rs151099638

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_178452.6(DNAAF1):​c.736G>A​(p.Asp246Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00153 in 1,614,010 control chromosomes in the GnomAD database, including 20 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.0060 ( 6 hom., cov: 32)
Exomes 𝑓: 0.0011 ( 14 hom. )

Consequence

DNAAF1
NM_178452.6 missense

Scores

1
17

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 1.48

Publications

4 publications found
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 Gene-Disease associations (from GenCC):
  • primary ciliary dyskinesia 13
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia
  • primary ciliary dyskinesia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.009695202).
BP6
Variant 16-84155744-G-A is Benign according to our data. Variant chr16-84155744-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 262958.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 = 0.00598 (910/152156) while in subpopulation AFR AF = 0.0202 (839/41496). AF 95% confidence interval is 0.0191. There are 6 homozygotes in GnomAd4. There are 433 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 6 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAAF1NM_178452.6 linkc.736G>A p.Asp246Asn missense_variant Exon 5 of 12 ENST00000378553.10 NP_848547.4 Q8NEP3-1A0A140VJN4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAAF1ENST00000378553.10 linkc.736G>A p.Asp246Asn missense_variant Exon 5 of 12 1 NM_178452.6 ENSP00000367815.5 Q8NEP3-1
DNAAF1ENST00000567918.5 linkn.736G>A non_coding_transcript_exon_variant Exon 5 of 7 1 ENSP00000455154.1 H3BP51
DNAAF1ENST00000563093.5 linkn.736G>A non_coding_transcript_exon_variant Exon 5 of 11 2 ENSP00000457373.1 Q8NEP3-3
DNAAF1ENST00000570298.5 linkn.890G>A non_coding_transcript_exon_variant Exon 5 of 11 2

Frequencies

GnomAD3 genomes
AF:
0.00595
AC:
904
AN:
152038
Hom.:
5
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0201
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00197
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000485
Gnomad OTH
AF:
0.00335
GnomAD2 exomes
AF:
0.00178
AC:
447
AN:
251418
AF XY:
0.00141
show subpopulations
Gnomad AFR exome
AF:
0.0210
Gnomad AMR exome
AF:
0.00127
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000466
Gnomad OTH exome
AF:
0.00130
GnomAD4 exome
AF:
0.00106
AC:
1554
AN:
1461854
Hom.:
14
Cov.:
32
AF XY:
0.000993
AC XY:
722
AN XY:
727232
show subpopulations
African (AFR)
AF:
0.0210
AC:
702
AN:
33480
American (AMR)
AF:
0.00152
AC:
68
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.000176
AC:
7
AN:
39700
South Asian (SAS)
AF:
0.0000927
AC:
8
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53398
Middle Eastern (MID)
AF:
0.00121
AC:
7
AN:
5768
European-Non Finnish (NFE)
AF:
0.000587
AC:
653
AN:
1112002
Other (OTH)
AF:
0.00180
AC:
109
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
89
177
266
354
443
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
40
80
120
160
200
<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:
0.00598
AC:
910
AN:
152156
Hom.:
6
Cov.:
32
AF XY:
0.00582
AC XY:
433
AN XY:
74380
show subpopulations
African (AFR)
AF:
0.0202
AC:
839
AN:
41496
American (AMR)
AF:
0.00196
AC:
30
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000485
AC:
33
AN:
68006
Other (OTH)
AF:
0.00331
AC:
7
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
47
94
140
187
234
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00168
Hom.:
2
Bravo
AF:
0.00689
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00130
AC:
5
ESP6500AA
AF:
0.0175
AC:
77
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.00222
AC:
270
Asia WGS
AF:
0.00346
AC:
12
AN:
3478
EpiCase
AF:
0.000491
EpiControl
AF:
0.000356

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Benign:2
Jan 08, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 23, 2015
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. -

Primary ciliary dyskinesia 13 Benign:2
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Oct 18, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.72
T
BayesDel_noAF
Benign
-0.79
CADD
Benign
13
DANN
Benign
0.97
DEOGEN2
Benign
0.00071
T
Eigen
Benign
-0.95
Eigen_PC
Benign
-0.91
FATHMM_MKL
Benign
0.48
N
LIST_S2
Uncertain
0.89
D
MetaRNN
Benign
0.0097
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
1.3
L
PhyloP100
1.5
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-1.6
N
REVEL
Benign
0.13
Sift
Benign
0.34
T
Sift4G
Benign
0.59
T
Polyphen
0.20
B
Vest4
0.35
MVP
0.31
MPC
0.020
ClinPred
0.0064
T
GERP RS
-2.0
Varity_R
0.064
gMVP
0.27
Mutation Taster
=96/4
polymorphism

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

Other links and lift over

dbSNP: rs151099638; hg19: chr16-84189349; COSMIC: COSV57576884; COSMIC: COSV57576884; API