rs150737854

Variant summary

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

The NM_018139.3(DNAAF2):​c.1406G>A​(p.Cys469Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00616 in 1,593,408 control chromosomes in the GnomAD database, including 94 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. C469S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0049 ( 7 hom., cov: 33)
Exomes 𝑓: 0.0063 ( 87 hom. )

Consequence

DNAAF2
NM_018139.3 missense

Scores

17

Clinical Significance

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

Conservation

PhyloP100: 0.309

Publications

10 publications found
Variant links:
Genes affected
DNAAF2 (HGNC:20188): (dynein axonemal assembly factor 2) This gene encodes a highly conserved protein involved in the preassembly of dynein arm complexes which power cilia. These complexes are found in some cilia and are assembled in the cytoplasm prior to transport for cilia formation. Mutations in this gene have been associated with primary ciliary dyskinesia. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Oct 2009]
DNAAF2 Gene-Disease associations (from GenCC):
  • primary ciliary dyskinesia 10
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
  • 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=0.0032324195).
BP6
Variant 14-49633744-C-T is Benign according to our data. Variant chr14-49633744-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 219711.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00494 (752/152336) while in subpopulation SAS AF = 0.0296 (143/4828). AF 95% confidence interval is 0.0257. There are 7 homozygotes in GnomAd4. There are 397 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 7 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018139.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DNAAF2
NM_018139.3
MANE Select
c.1406G>Ap.Cys469Tyr
missense
Exon 1 of 3NP_060609.2Q9NVR5-1
DNAAF2
NM_001083908.2
c.1406G>Ap.Cys469Tyr
missense
Exon 1 of 2NP_001077377.1Q9NVR5-2
DNAAF2
NM_001378453.1
c.-466G>A
5_prime_UTR
Exon 1 of 2NP_001365382.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DNAAF2
ENST00000298292.13
TSL:1 MANE Select
c.1406G>Ap.Cys469Tyr
missense
Exon 1 of 3ENSP00000298292.8Q9NVR5-1
DNAAF2
ENST00000406043.3
TSL:1
c.1406G>Ap.Cys469Tyr
missense
Exon 1 of 2ENSP00000384862.3Q9NVR5-2

Frequencies

GnomAD3 genomes
AF:
0.00495
AC:
754
AN:
152218
Hom.:
7
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000772
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00170
Gnomad ASJ
AF:
0.0107
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0298
Gnomad FIN
AF:
0.0108
Gnomad MID
AF:
0.0190
Gnomad NFE
AF:
0.00559
Gnomad OTH
AF:
0.00669
GnomAD2 exomes
AF:
0.00773
AC:
1796
AN:
232332
AF XY:
0.00886
show subpopulations
Gnomad AFR exome
AF:
0.000864
Gnomad AMR exome
AF:
0.00212
Gnomad ASJ exome
AF:
0.0113
Gnomad EAS exome
AF:
0.0000565
Gnomad FIN exome
AF:
0.00953
Gnomad NFE exome
AF:
0.00625
Gnomad OTH exome
AF:
0.00589
GnomAD4 exome
AF:
0.00629
AC:
9060
AN:
1441072
Hom.:
87
Cov.:
92
AF XY:
0.00696
AC XY:
4978
AN XY:
715636
show subpopulations
African (AFR)
AF:
0.000546
AC:
18
AN:
32954
American (AMR)
AF:
0.00206
AC:
88
AN:
42676
Ashkenazi Jewish (ASJ)
AF:
0.00980
AC:
246
AN:
25090
East Asian (EAS)
AF:
0.0000506
AC:
2
AN:
39506
South Asian (SAS)
AF:
0.0260
AC:
2198
AN:
84674
European-Finnish (FIN)
AF:
0.00768
AC:
364
AN:
47404
Middle Eastern (MID)
AF:
0.0122
AC:
69
AN:
5668
European-Non Finnish (NFE)
AF:
0.00516
AC:
5690
AN:
1103576
Other (OTH)
AF:
0.00647
AC:
385
AN:
59524
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
600
1200
1799
2399
2999
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
224
448
672
896
1120
<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:
0.00494
AC:
752
AN:
152336
Hom.:
7
Cov.:
33
AF XY:
0.00533
AC XY:
397
AN XY:
74486
show subpopulations
African (AFR)
AF:
0.000769
AC:
32
AN:
41588
American (AMR)
AF:
0.00170
AC:
26
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.0107
AC:
37
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.0296
AC:
143
AN:
4828
European-Finnish (FIN)
AF:
0.0108
AC:
115
AN:
10628
Middle Eastern (MID)
AF:
0.0204
AC:
6
AN:
294
European-Non Finnish (NFE)
AF:
0.00559
AC:
380
AN:
68026
Other (OTH)
AF:
0.00615
AC:
13
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
37
73
110
146
183
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:
0.00575
Hom.:
14
Bravo
AF:
0.00379
TwinsUK
AF:
0.00297
AC:
11
ALSPAC
AF:
0.00363
AC:
14
ESP6500AA
AF:
0.000469
AC:
2
ESP6500EA
AF:
0.00694
AC:
59
ExAC
AF:
0.00801
AC:
970
Asia WGS
AF:
0.00895
AC:
31
AN:
3478

ClinVar

ClinVar submissions
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not specified (2)
-
-
2
Primary ciliary dyskinesia (2)
-
-
1
not provided (1)
-
-
1
Primary ciliary dyskinesia 10 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Benign
-0.71
T
BayesDel_noAF
Benign
-0.77
CADD
Benign
2.3
DANN
Benign
0.79
DEOGEN2
Benign
0.0022
T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.024
N
LIST_S2
Benign
0.40
T
MetaRNN
Benign
0.0032
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.69
N
PhyloP100
0.31
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-1.8
N
REVEL
Benign
0.050
Sift
Benign
0.67
T
Sift4G
Benign
0.086
T
Polyphen
0.0
B
Vest4
0.097
MVP
0.092
MPC
0.86
ClinPred
0.0036
T
GERP RS
0.70
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.052
gMVP
0.36
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: rs150737854; hg19: chr14-50100462; COSMIC: COSV100024286; COSMIC: COSV100024286; API