dbSNP rs71367156: DNAAF3:c.913-8A>G (chr19-55160783-T-C) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001256715.2(DNAAF3):c.913-8A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00226 in 1,606,684 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0023 ( 11 hom. )

Consequence

DNAAF3
NM_001256715.2 splice_region, intron

Scores

Splicing: ADA: 0.00003812

Clinical Significance

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

Conservation

PhyloP100: 0.380

Variant links:

Genes affected

DNAAF3 (HGNC:30492): (dynein axonemal assembly factor 3) The protein encoded by this gene is required for the assembly of axonemal inner and outer dynein arms and plays a role in assembling dynein complexes for transport into cilia. Defects in this gene are a cause of primary ciliary dyskinesia type 2 (CILD2). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2012]

DNAAF3 links:

DNAAF3-AS1 (HGNC:55292): (DNAAF3 antisense RNA 1)

DNAAF3-AS1 links:

ENSG00000267110 (HGNC:):

ENSG00000267110 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.84).

BP6

Variant 19-55160783-T-C is Benign according to our data. Variant chr19-55160783-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 257678.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00143 (218/152230) while in subpopulation NFE AF= 0.00266 (181/68012). AF 95% confidence interval is 0.00234. There are 0 homozygotes in gnomad4. There are 87 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 11 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAAF3	NM_001256715.2 link	c.913-8A>G		splice_region_variant, intron_variant	Intron 8 of 11	ENST00000524407.7	NP_001243644.1	Q8N9W5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNAAF3	ENST00000524407.7 link	c.913-8A>G		splice_region_variant, intron_variant	Intron 8 of 11	1	NM_001256715.2	ENSP00000432046.3		Q8N9W5-1
ENSG00000267110	ENST00000587871.1 link	n.-113A>G		upstream_gene_variant		5		ENSP00000473050.1		M0R381

Frequencies

GnomAD3 genomes

AF:

0.00143

AC:

218

AN:

152112

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000386

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00111

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00266

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.00114

AC:

272

AN:

239120

Hom.:

AF XY:

0.00124

AC XY:

162

AN XY:

131066

show subpopulations

Gnomad AFR exome

AF:

0.000678

Gnomad AMR exome

AF:

0.000634

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000216

Gnomad NFE exome

AF:

0.00212

Gnomad OTH exome

AF:

0.00101

GnomAD4 exome

AF:

0.00235

AC:

3415

AN:

1454454

Hom.:

Cov.:

AF XY:

0.00230

AC XY:

1663

AN XY:

723756

show subpopulations

Gnomad4 AFR exome

AF:

0.000270

Gnomad4 AMR exome

AF:

0.000643

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.000244

Gnomad4 NFE exome

AF:

0.00293

Gnomad4 OTH exome

AF:

0.00188

GnomAD4 genome

AF:

0.00143

AC:

218

AN:

152230

Hom.:

Cov.:

AF XY:

0.00117

AC XY:

AN XY:

74436

show subpopulations

Gnomad4 AFR

AF:

0.000385

Gnomad4 AMR

AF:

0.00111

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000943

Gnomad4 NFE

AF:

0.00266

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.00168

Hom.:

Bravo

AF:

0.00141

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Primary ciliary dyskinesia

Benign:1

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

6.5

DANN

Benign

0.57

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000038

dbscSNV1_RF

Benign

0.0020

SpliceAI score (max)

0.080

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over