rs761136963

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.1377T>A​(p.Asp459Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000217 in 1,611,238 control chromosomes in the GnomAD database, including 4 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D459A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00022 ( 4 hom. )

Consequence

DNAAF1
NM_178452.6 missense

Scores

1
17

Clinical Significance

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

Conservation

PhyloP100: -4.04

Publications

1 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=0.004016429).
BP6
Variant 16-84170205-T-A is Benign according to our data. Variant chr16-84170205-T-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 220579.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000139 (21/151016) while in subpopulation AMR AF = 0.00138 (21/15212). AF 95% confidence interval is 0.000924. There are 0 homozygotes in GnomAd4. There are 10 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 4 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAAF1NM_178452.6 linkc.1377T>A p.Asp459Glu missense_variant Exon 8 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.1377T>A p.Asp459Glu missense_variant Exon 8 of 12 1 NM_178452.6 ENSP00000367815.5 Q8NEP3-1

Frequencies

GnomAD3 genomes
AF:
0.000139
AC:
21
AN:
150900
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00138
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
GnomAD2 exomes
AF:
0.00115
AC:
288
AN:
251116
AF XY:
0.000781
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00821
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000653
GnomAD4 exome
AF:
0.000225
AC:
328
AN:
1460222
Hom.:
4
Cov.:
94
AF XY:
0.000169
AC XY:
123
AN XY:
726454
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33430
American (AMR)
AF:
0.00731
AC:
326
AN:
44580
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26104
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39688
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86190
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53382
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1110780
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60308
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
26
51
77
102
128
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.000139
AC:
21
AN:
151016
Hom.:
0
Cov.:
31
AF XY:
0.000136
AC XY:
10
AN XY:
73772
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
40968
American (AMR)
AF:
0.00138
AC:
21
AN:
15212
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5106
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4738
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10472
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
286
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67766
Other (OTH)
AF:
0.00
AC:
0
AN:
2098
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000193
Hom.:
0
Bravo
AF:
0.000514
ExAC
AF:
0.000972
AC:
118

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
Jun 21, 2016
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. -

Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Primary ciliary dyskinesia 13 Benign:1
Feb 25, 2022
Fulgent Genetics, Fulgent Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
-0.65
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
0.0060
DANN
Benign
0.21
DEOGEN2
Benign
0.0044
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.0034
N
LIST_S2
Benign
0.43
T
MetaRNN
Benign
0.0040
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.0
L
PhyloP100
-4.0
PrimateAI
Benign
0.26
T
PROVEAN
Benign
0.040
N
REVEL
Benign
0.048
Sift
Uncertain
0.0060
D
Sift4G
Benign
1.0
T
Polyphen
0.81
P
Vest4
0.11
MutPred
0.15
Gain of glycosylation at K456 (P = 0.2216);
MVP
0.11
MPC
0.025
ClinPred
0.049
T
GERP RS
-1.2
Varity_R
0.079
gMVP
0.046
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs761136963; hg19: chr16-84203811; API