rs567371975

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS1

The NM_018139.3(DNAAF2):​c.129C>T​(p.Leu43=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000128 in 1,572,782 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00019 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

DNAAF2
NM_018139.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.0190
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 -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 14-49635021-G-A is Benign according to our data. Variant chr14-49635021-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 261011.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.019 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00019 (29/152404) while in subpopulation AMR AF= 0.0017 (26/15312). AF 95% confidence interval is 0.00119. There are 1 homozygotes in gnomad4. There are 9 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAAF2NM_018139.3 linkuse as main transcriptc.129C>T p.Leu43= synonymous_variant 1/3 ENST00000298292.13
DNAAF2NM_001083908.2 linkuse as main transcriptc.129C>T p.Leu43= synonymous_variant 1/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAAF2ENST00000298292.13 linkuse as main transcriptc.129C>T p.Leu43= synonymous_variant 1/31 NM_018139.3 P2Q9NVR5-1
DNAAF2ENST00000406043.3 linkuse as main transcriptc.129C>T p.Leu43= synonymous_variant 1/21 A2Q9NVR5-2

Frequencies

GnomAD3 genomes
AF:
0.000190
AC:
29
AN:
152286
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000723
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00170
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:
0.00
GnomAD3 exomes
AF:
0.000756
AC:
135
AN:
178542
Hom.:
1
AF XY:
0.000605
AC XY:
59
AN XY:
97506
show subpopulations
Gnomad AFR exome
AF:
0.000216
Gnomad AMR exome
AF:
0.00466
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000136
Gnomad OTH exome
AF:
0.000623
GnomAD4 exome
AF:
0.000122
AC:
173
AN:
1420378
Hom.:
1
Cov.:
34
AF XY:
0.000111
AC XY:
78
AN XY:
702846
show subpopulations
Gnomad4 AFR exome
AF:
0.0000618
Gnomad4 AMR exome
AF:
0.00425
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:
0.00000183
Gnomad4 OTH exome
AF:
0.0000679
GnomAD4 genome
AF:
0.000190
AC:
29
AN:
152404
Hom.:
1
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74530
show subpopulations
Gnomad4 AFR
AF:
0.0000721
Gnomad4 AMR
AF:
0.00170
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:
0.00
Alfa
AF:
0.000197
Hom.:
0
Bravo
AF:
0.000570

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Benign:2
Benign, criteria provided, single submitterclinical testingInvitaeJan 26, 2024- -
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsApr 09, 2022This 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 specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
8.5
DANN
Benign
0.89

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: rs567371975; hg19: chr14-50101739; API