rs775335375

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_173494.2(DNAAF6):​c.502C>T​(p.Arg168Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000538 in 1,207,509 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 25 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000045 ( 0 hom., 2 hem., cov: 23)
Exomes 𝑓: 0.000055 ( 0 hom. 23 hem. )

Consequence

DNAAF6
NM_173494.2 missense

Scores

2
2
13

Clinical Significance

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

Conservation

PhyloP100: 2.05

Publications

0 publications found
Variant links:
Genes affected
DNAAF6 (HGNC:28570): (dynein axonemal assembly factor 6) Enables dynein intermediate chain binding activity. Involved in flagellated sperm motility; inner dynein arm assembly; and outer dynein arm assembly. Located in trans-Golgi network. Implicated in primary ciliary dyskinesia 36. [provided by Alliance of Genome Resources, Apr 2022]
DNAAF6 Gene-Disease associations (from GenCC):
  • ciliary dyskinesia, primary, 36, X-linked
    Inheritance: XL Classification: STRONG Submitted by: G2P, 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 -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.32592106).
BS2
High AC in GnomAd4 at 5 XL,AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAAF6NM_173494.2 linkc.502C>T p.Arg168Cys missense_variant Exon 6 of 7 ENST00000372453.8 NP_775765.1
DNAAF6NM_001169154.2 linkc.502C>T p.Arg168Cys missense_variant Exon 7 of 8 NP_001162625.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAAF6ENST00000372453.8 linkc.502C>T p.Arg168Cys missense_variant Exon 6 of 7 1 NM_173494.2 ENSP00000361531.3
DNAAF6ENST00000336387.4 linkc.502C>T p.Arg168Cys missense_variant Exon 6 of 7 5 ENSP00000337757.4
DNAAF6ENST00000535523.6 linkc.502C>T p.Arg168Cys missense_variant Exon 7 of 8 5 ENSP00000441930.1
DNAAF6ENST00000688816.1 linkc.405C>T p.Phe135Phe synonymous_variant Exon 5 of 6 ENSP00000508655.1

Frequencies

GnomAD3 genomes
AF:
0.0000448
AC:
5
AN:
111537
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000279
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000168
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000565
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000501
AC:
9
AN:
179770
AF XY:
0.0000155
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.000112
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000547
AC:
60
AN:
1095972
Hom.:
0
Cov.:
30
AF XY:
0.0000636
AC XY:
23
AN XY:
361672
show subpopulations
African (AFR)
AF:
0.0000380
AC:
1
AN:
26294
American (AMR)
AF:
0.00
AC:
0
AN:
34865
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19320
East Asian (EAS)
AF:
0.0000332
AC:
1
AN:
30081
South Asian (SAS)
AF:
0.00
AC:
0
AN:
53596
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40480
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4117
European-Non Finnish (NFE)
AF:
0.0000666
AC:
56
AN:
841218
Other (OTH)
AF:
0.0000435
AC:
2
AN:
46001
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome 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
GnomAD4 genome
AF:
0.0000448
AC:
5
AN:
111537
Hom.:
0
Cov.:
23
AF XY:
0.0000593
AC XY:
2
AN XY:
33731
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30760
American (AMR)
AF:
0.00
AC:
0
AN:
10428
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2645
East Asian (EAS)
AF:
0.000279
AC:
1
AN:
3588
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2660
European-Finnish (FIN)
AF:
0.000168
AC:
1
AN:
5968
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
239
European-Non Finnish (NFE)
AF:
0.0000565
AC:
3
AN:
53063
Other (OTH)
AF:
0.00
AC:
0
AN:
1500
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

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:
0.0000868
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000110
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Ciliary dyskinesia, primary, 36, X-linked Uncertain:1
Jul 10, 2018
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Oct 28, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 168 of the PIH1D3 protein (p.Arg168Cys). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with PIH1D3-related conditions. ClinVar contains an entry for this variant (Variation ID: 562215). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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
Uncertain
0.35
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
22
DANN
Uncertain
0.98
DEOGEN2
Benign
0.26
T;T;T
FATHMM_MKL
Benign
0.72
D
LIST_S2
Benign
0.82
T;.;.
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.33
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Pathogenic
3.2
M;M;M
PhyloP100
2.0
PrimateAI
Benign
0.46
T
PROVEAN
Pathogenic
-6.3
D;D;D
REVEL
Benign
0.14
Sift
Benign
0.039
D;D;D
Sift4G
Benign
0.082
T;T;T
Polyphen
0.94
P;P;P
Vest4
0.51
MVP
0.28
MPC
0.28
ClinPred
0.73
D
GERP RS
3.7
Varity_R
0.35
gMVP
0.78
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs775335375; hg19: chrX-106482224; API