19-55159034-T-G

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_001256715.2(DNAAF3):​c.*28A>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000475 in 1,536,634 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00050 ( 0 hom. )

Consequence

DNAAF3
NM_001256715.2 3_prime_UTR

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.83
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)

Genome browser will be placed here

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=-0.95).
BS1
Variant frequency is greater than expected in population nfe. gnomad4_exome allele frequency = 0.000496 (687/1384478) while in subpopulation NFE AF= 0.000566 (609/1076138). AF 95% confidence interval is 0.000529. There are 0 homozygotes in gnomad4_exome. There are 342 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DNAAF3NM_001256715.2 linkuse as main transcriptc.*28A>C 3_prime_UTR_variant 12/12 ENST00000524407.7 NP_001243644.1
DNAAF3NM_001256714.1 linkuse as main transcriptc.*28A>C 3_prime_UTR_variant 12/12 NP_001243643.1
DNAAF3NM_001256716.2 linkuse as main transcriptc.*28A>C 3_prime_UTR_variant 12/12 NP_001243645.1
DNAAF3NM_178837.4 linkuse as main transcriptc.*28A>C 3_prime_UTR_variant 12/12 NP_849159.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DNAAF3ENST00000524407.7 linkuse as main transcriptc.*28A>C 3_prime_UTR_variant 12/121 NM_001256715.2 ENSP00000432046 A2Q8N9W5-1
DNAAF3-AS1ENST00000591665.1 linkuse as main transcriptn.96T>G non_coding_transcript_exon_variant 1/52

Frequencies

GnomAD3 genomes
AF:
0.000283
AC:
43
AN:
152038
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000174
AC:
33
AN:
189600
Hom.:
0
AF XY:
0.000195
AC XY:
20
AN XY:
102792
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000439
Gnomad ASJ exome
AF:
0.000857
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000305
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000496
AC:
687
AN:
1384478
Hom.:
0
Cov.:
31
AF XY:
0.000502
AC XY:
342
AN XY:
681452
show subpopulations
Gnomad4 AFR exome
AF:
0.0000326
Gnomad4 AMR exome
AF:
0.0000635
Gnomad4 ASJ exome
AF:
0.00114
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000255
Gnomad4 FIN exome
AF:
0.0000202
Gnomad4 NFE exome
AF:
0.000566
Gnomad4 OTH exome
AF:
0.000545
GnomAD4 genome
AF:
0.000283
AC:
43
AN:
152156
Hom.:
0
Cov.:
33
AF XY:
0.000215
AC XY:
16
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.0000964
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000343
Hom.:
0
Bravo
AF:
0.000310

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.95
CADD
Benign
0.68
DANN
Benign
0.69

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: rs201512228; hg19: chr19-55670402; API