rs149139347

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_017802.4(DNAAF5):​c.697G>A​(p.Ala233Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000558 in 1,614,210 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A233S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

DNAAF5
NM_017802.4 missense

Scores

18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 0.0840

Publications

2 publications found
Variant links:
Genes affected
DNAAF5 (HGNC:26013): (dynein axonemal assembly factor 5) The protein encoded by this gene is essential for the preassembly or stability of axonemal dynein arms, and is found only in organisms with motile cilia and flagella. Mutations in this gene are associated with primary ciliary dyskinesia-18, a disorder characterized by abnormalities of motile cilia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Feb 2013]
DNAAF5 Gene-Disease associations (from GenCC):
  • primary ciliary dyskinesia 18
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • 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 -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.013641149).
BP6
Variant 7-729764-G-A is Benign according to our data. Variant chr7-729764-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 410304.
BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.0000472 (69/1461872) while in subpopulation MID AF = 0.000867 (5/5768). AF 95% confidence interval is 0.000341. There are 0 homozygotes in GnomAdExome4. There are 31 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAAF5NM_017802.4 linkc.697G>A p.Ala233Thr missense_variant Exon 2 of 13 ENST00000297440.11 NP_060272.3 Q86Y56-1B3KPE2
DNAAF5XM_024446813.2 linkc.697G>A p.Ala233Thr missense_variant Exon 2 of 12 XP_024302581.1
DNAAF5NR_075098.2 linkn.657G>A non_coding_transcript_exon_variant Exon 2 of 13

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAAF5ENST00000297440.11 linkc.697G>A p.Ala233Thr missense_variant Exon 2 of 13 1 NM_017802.4 ENSP00000297440.6 Q86Y56-1
DNAAF5ENST00000440747.5 linkc.100G>A p.Ala34Thr missense_variant Exon 2 of 13 2 ENSP00000403165.1 H0Y650
DNAAF5ENST00000438961.1 linkn.166G>A non_coding_transcript_exon_variant Exon 2 of 5 4
DNAAF5ENST00000437419.5 linkc.96+2449G>A intron_variant Intron 1 of 4 5 ENSP00000410788.1 H7C3B1

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152220
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000314
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000392
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000558
AC:
14
AN:
251048
AF XY:
0.0000589
show subpopulations
Gnomad AFR exome
AF:
0.000247
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000472
AC:
69
AN:
1461872
Hom.:
0
Cov.:
31
AF XY:
0.0000426
AC XY:
31
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.000239
AC:
8
AN:
33480
American (AMR)
AF:
0.0000447
AC:
2
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000927
AC:
8
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53412
Middle Eastern (MID)
AF:
0.000867
AC:
5
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000369
AC:
41
AN:
1112004
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
5
10
15
20
25
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
152338
Hom.:
0
Cov.:
32
AF XY:
0.000174
AC XY:
13
AN XY:
74500
show subpopulations
African (AFR)
AF:
0.000313
AC:
13
AN:
41570
American (AMR)
AF:
0.000392
AC:
6
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
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:
0.000124
Hom.:
0
Bravo
AF:
0.000193
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Uncertain:1Benign:1
Aug 09, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 233 of the DNAAF5 protein (p.Ala233Thr). This variant is present in population databases (rs149139347, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with DNAAF5-related conditions. ClinVar contains an entry for this variant (Variation ID: 410304). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. -

Oct 29, 2021
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. -

not provided Uncertain:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.064
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.66
CADD
Benign
1.7
DANN
Benign
0.69
DEOGEN2
Benign
0.21
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.068
N
LIST_S2
Benign
0.58
T
M_CAP
Benign
0.0023
T
MetaRNN
Benign
0.014
T
MetaSVM
Benign
-0.98
T
PhyloP100
0.084
PrimateAI
Benign
0.32
T
PROVEAN
Benign
0.23
N
REVEL
Benign
0.012
Sift
Benign
1.0
T
Sift4G
Benign
1.0
T
Polyphen
0.0080
B
Vest4
0.15
MVP
0.014
MPC
0.16
ClinPred
0.078
T
GERP RS
-3.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.018
gMVP
0.15
Mutation Taster
=96/4
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: rs149139347; hg19: chr7-769401; COSMIC: COSV52416577; COSMIC: COSV52416577; API