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GeneBe

19-55161086-C-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_ModerateBP6_Very_StrongBP7

The NM_001256715.2(DNAAF3):​c.891G>A​(p.Thr297=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000169 in 1,542,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. T297T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000065 ( 0 hom. )

Consequence

DNAAF3
NM_001256715.2 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 0.549
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-AS1 (HGNC:55292): (DNAAF3 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.42).
BP6
Variant 19-55161086-C-T is Benign according to our data. Variant chr19-55161086-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 416075.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.549 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAAF3NM_001256715.2 linkuse as main transcriptc.891G>A p.Thr297= synonymous_variant 8/12 ENST00000524407.7
DNAAF3-AS1XR_007067344.1 linkuse as main transcriptn.178C>T non_coding_transcript_exon_variant 2/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAAF3ENST00000524407.7 linkuse as main transcriptc.891G>A p.Thr297= synonymous_variant 8/121 NM_001256715.2 A2Q8N9W5-1
DNAAF3-AS1ENST00000591665.1 linkuse as main transcriptn.1008C>T non_coding_transcript_exon_variant 3/52

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152114
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000410
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000345
AC:
5
AN:
144736
Hom.:
0
AF XY:
0.0000384
AC XY:
3
AN XY:
78082
show subpopulations
Gnomad AFR exome
AF:
0.000283
Gnomad AMR exome
AF:
0.0000814
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000921
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000647
AC:
9
AN:
1390712
Hom.:
0
Cov.:
34
AF XY:
0.00000874
AC XY:
6
AN XY:
686176
show subpopulations
Gnomad4 AFR exome
AF:
0.0000635
Gnomad4 AMR exome
AF:
0.0000561
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000232
Gnomad4 NFE exome
AF:
0.00000185
Gnomad4 OTH exome
AF:
0.0000346
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.000134
AC XY:
10
AN XY:
74426
show subpopulations
Gnomad4 AFR
AF:
0.000409
Gnomad4 AMR
AF:
0.00
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
Bravo
AF:
0.0000982

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 13, 2023- -
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsJul 29, 2023This 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
13
DANN
Benign
0.95

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: rs565551381; hg19: chr19-55672454; API