rs886038643

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_018139.3(DNAAF2):​c.1110G>T​(p.Ala370=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000293 in 1,367,410 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A370A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

DNAAF2
NM_018139.3 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.572
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 Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP7
Synonymous conserved (PhyloP=-0.572 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAAF2NM_018139.3 linkuse as main transcriptc.1110G>T p.Ala370= synonymous_variant 1/3 ENST00000298292.13
DNAAF2NM_001083908.2 linkuse as main transcriptc.1110G>T p.Ala370= synonymous_variant 1/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAAF2ENST00000298292.13 linkuse as main transcriptc.1110G>T p.Ala370= synonymous_variant 1/31 NM_018139.3 P2Q9NVR5-1
DNAAF2ENST00000406043.3 linkuse as main transcriptc.1110G>T p.Ala370= synonymous_variant 1/21 A2Q9NVR5-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000293
AC:
4
AN:
1367410
Hom.:
0
Cov.:
87
AF XY:
0.00000297
AC XY:
2
AN XY:
673500
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:
0.0000132
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000280
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
4.7
DANN
Benign
0.55

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: rs886038643; hg19: chr14-50100758; API