rs760388668

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_017802.4(DNAAF5):​c.830G>A​(p.Arg277His) variant causes a missense change. The variant allele was found at a frequency of 0.000039 in 1,613,960 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

DNAAF5
NM_017802.4 missense

Scores

1
10
7

Clinical Significance

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

Conservation

PhyloP100: 4.13
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAAF5NM_017802.4 linkc.830G>A p.Arg277His missense_variant Exon 3 of 13 ENST00000297440.11 NP_060272.3 Q86Y56-1B3KPE2
DNAAF5XM_024446813.2 linkc.830G>A p.Arg277His missense_variant Exon 3 of 12 XP_024302581.1
DNAAF5NR_075098.2 linkn.790G>A non_coding_transcript_exon_variant Exon 3 of 13

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAAF5ENST00000297440.11 linkc.830G>A p.Arg277His missense_variant Exon 3 of 13 1 NM_017802.4 ENSP00000297440.6 Q86Y56-1
DNAAF5ENST00000440747.5 linkc.233G>A p.Arg78His missense_variant Exon 3 of 13 2 ENSP00000403165.1 H0Y650
DNAAF5ENST00000437419.5 linkc.146G>A p.Arg49His missense_variant Exon 2 of 5 5 ENSP00000410788.1 H7C3B1
DNAAF5ENST00000438961.1 linkn.299G>A non_coding_transcript_exon_variant Exon 3 of 5 4

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152236
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251382
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135876
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000397
AC:
58
AN:
1461724
Hom.:
0
Cov.:
32
AF XY:
0.0000399
AC XY:
29
AN XY:
727178
show subpopulations
Gnomad4 AFR exome
AF:
0.000239
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000279
Gnomad4 OTH exome
AF:
0.000215
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152236
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000322
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
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
Dec 29, 2021
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.R277H variant (also known as c.830G>A), located in coding exon 3 of the DNAAF5 gene, results from a G to A substitution at nucleotide position 830. The arginine at codon 277 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Oct 06, 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 histidine, which is basic and polar, at codon 277 of the DNAAF5 protein (p.Arg277His). This variant is present in population databases (rs760388668, gnomAD 0.01%). This missense change has been observed in individual(s) with clinical features of primary ciliary dyskinesia (internal data). ClinVar contains an entry for this variant (Variation ID: 525442). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt DNAAF5 protein function with a positive predictive value of 80%. 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
0.16
BayesDel_addAF
Benign
-0.057
T
BayesDel_noAF
Benign
-0.090
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.34
T
Eigen
Uncertain
0.51
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.086
D
MetaRNN
Uncertain
0.58
D
MetaSVM
Uncertain
-0.14
T
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-2.7
D
REVEL
Uncertain
0.31
Sift
Benign
0.13
T
Sift4G
Benign
0.10
T
Polyphen
1.0
D
Vest4
0.61
MVP
0.32
MPC
0.72
ClinPred
0.64
D
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.16
gMVP
0.42

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs760388668; hg19: chr7-780505; COSMIC: COSV52421988; API