rs201895277

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_017802.4(DNAAF5):​c.2551G>A​(p.Val851Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000384 in 1,612,796 control chromosomes in the GnomAD database, including 1 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000066 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

DNAAF5
NM_017802.4 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: -1.09

Publications

3 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: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.029451817).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAAF5NM_017802.4 linkc.2551G>A p.Val851Met missense_variant Exon 13 of 13 ENST00000297440.11 NP_060272.3 Q86Y56-1B3KPE2
DNAAF5XM_024446813.2 linkc.2359G>A p.Val787Met missense_variant Exon 12 of 12 XP_024302581.1
DNAAF5NR_075098.2 linkn.2511G>A non_coding_transcript_exon_variant Exon 13 of 13

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAAF5ENST00000297440.11 linkc.2551G>A p.Val851Met missense_variant Exon 13 of 13 1 NM_017802.4 ENSP00000297440.6 Q86Y56-1
DNAAF5ENST00000403952.3 linkc.826G>A p.Val276Met missense_variant Exon 6 of 6 1 ENSP00000384884.3 E9PGY2
DNAAF5ENST00000440747.5 linkc.1954G>A p.Val652Met missense_variant Exon 13 of 13 2 ENSP00000403165.1 H0Y650
DNAAF5ENST00000461576.1 linkn.*63G>A downstream_gene_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152200
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000440
AC:
11
AN:
250156
AF XY:
0.0000517
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000709
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000356
AC:
52
AN:
1460596
Hom.:
0
Cov.:
33
AF XY:
0.0000330
AC XY:
24
AN XY:
726588
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86238
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52334
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5710
European-Non Finnish (NFE)
AF:
0.0000414
AC:
46
AN:
1111928
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60362
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.466
Heterozygous variant carriers
0
4
7
11
14
18
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:
0.0000657
AC:
10
AN:
152200
Hom.:
1
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74348
show subpopulations
African (AFR)
AF:
0.0000965
AC:
4
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5186
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68044
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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:
0.000125
Hom.:
1
Bravo
AF:
0.0000567
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Uncertain:2
Apr 07, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.V851M variant (also known as c.2551G>A), located in coding exon 13 of the DNAAF5 gene, results from a G to A substitution at nucleotide position 2551. The valine at codon 851 is replaced by methionine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Aug 24, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces valine with methionine at codon 851 of the DNAAF5 protein (p.Val851Met). The valine residue is weakly conserved and there is a small physicochemical difference between valine and methionine. This variant is present in population databases (rs201895277, ExAC 0.02%). This variant has not been reported in the literature in individuals affected with DNAAF5-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The methionine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
9.4
DANN
Benign
0.65
DEOGEN2
Benign
0.024
T;T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.028
N
LIST_S2
Benign
0.49
T;T
M_CAP
Benign
0.0028
T
MetaRNN
Benign
0.029
T;T
MetaSVM
Benign
-1.1
T
PhyloP100
-1.1
PrimateAI
Benign
0.33
T
PROVEAN
Benign
0.40
N;N
REVEL
Benign
0.053
Sift
Benign
0.48
T;T
Sift4G
Benign
0.16
T;T
Polyphen
0.096
B;B
Vest4
0.054
MVP
0.030
MPC
0.16
ClinPred
0.0068
T
GERP RS
-4.0
Varity_R
0.014
gMVP
0.073
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: rs201895277; hg19: chr7-825273; API