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GeneBe

14-49625542-T-C

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_ModerateBP6_Very_StrongBP7BS2

The NM_018139.3(DNAAF2):ā€‹c.2514A>Gā€‹(p.Ter838=) variant causes a stop retained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000256 in 1,565,200 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.00013 ( 3 hom., cov: 32)
Exomes š‘“: 0.000014 ( 2 hom. )

Consequence

DNAAF2
NM_018139.3 stop_retained

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 2.64
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.42).
BP6
Variant 14-49625542-T-C is Benign according to our data. Variant chr14-49625542-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 1792434.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=2.64 with no splicing effect.
BS2
High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAAF2NM_018139.3 linkuse as main transcriptc.2514A>G p.Ter838= stop_retained_variant 3/3 ENST00000298292.13
DNAAF2NM_001083908.2 linkuse as main transcriptc.2370A>G p.Ter790= stop_retained_variant 2/2
DNAAF2NM_001378453.1 linkuse as main transcriptc.303A>G p.Ter101= stop_retained_variant 2/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAAF2ENST00000298292.13 linkuse as main transcriptc.2514A>G p.Ter838= stop_retained_variant 3/31 NM_018139.3 P2Q9NVR5-1
DNAAF2ENST00000406043.3 linkuse as main transcriptc.2370A>G p.Ter790= stop_retained_variant 2/21 A2Q9NVR5-2

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152178
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000786
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:
0.00
Gnomad OTH
AF:
0.000957
GnomAD3 exomes
AF:
0.00000464
AC:
1
AN:
215318
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
116932
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000598
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000142
AC:
20
AN:
1412904
Hom.:
2
Cov.:
29
AF XY:
0.0000157
AC XY:
11
AN XY:
699380
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000184
Gnomad4 OTH exome
AF:
0.000309
GnomAD4 genome
AF:
0.000131
AC:
20
AN:
152296
Hom.:
3
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000785
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00379
Bravo
AF:
0.0000113
Asia WGS
AF:
0.00839
AC:
29
AN:
3472

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Benign:2
Likely benign, criteria provided, single submitterclinical testingInvitaeOct 11, 2023- -
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsMar 14, 2016This 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.42
CADD
Benign
9.4
DANN
Benign
0.79

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: rs371013573; hg19: chr14-50092260; COSMIC: COSV100023467; COSMIC: COSV100023467; API